|
|
|
Use the information below to answer the following
item.
Hummingbirds need large amounts of energy to flap their wings between 60 and 200
times per second. Their wings beat so rapidly that it is difficult to see them move. They often
appear suspended in air for extended periods of time without changing their location. Hummingbirds
have long bills and grooved tongues to reach into flowers to feed on flower nectar. They also feed on
insects.
|
|
|
1.
|
Which term best describes the ecological relationship between hummingbirds and
insects?
A) | mutualism | B) | parasite–host | C) | predator–prey | D) | commensalism |
|
|
|
2.
|
The body system most directly interacting with the skeletal system to enable
hummingbirds to beat their wings between 60 and 200 times per second is the -
A) | circulatory system | B) | endocrine system | C) | muscular
system | D) | digestive system |
|
|
|
3.
|
A protozoan lives inside a rat and takes its nourishment from the rat’s
body.
Because the protozoan damages the rat’s brain, the rat loses its fear of cats. A
cat
attacks an infected rat; the protozoan enters the cat’s body and completes its
life
cycle.
Which of these describes the relationship between the protozoan and the
rat?
A) | predator–prey | B) | commensalism | C) | mutualism | D) | parasite–host |
|
|
|
Black skimmers are water birds that live along coastal beaches, bays,
estuaries, and marshes. They fly just above the surface of the water using their lower jaw to catch
small fish, shrimp, and other small crustaceans.
These birds
nest in simple, unlined depressions in the sand. Scientists have observed a decline in the number of
nests. Some causes of this decline include a lack of suitable nesting sites, beach erosion, and human
disturbances.
When people approach their nests, the birds become aggressive and chase away
intruders. Other animals, like crows, will take advantage of the unprotected nests and feed on the
eggs.
|
|
|
4.
|
Which of these terms best describes the relationship between the crows
and the black skimmers?
A) | predator-prey | B) | parasite-host | C) | commensalism | D) | mutualism |
|
|
|
5.
|
Which of these best describes the effects of human disturbance on the black
skimmer’s eggs?
A) | a niche | B) | a biotic factor | C) | an abiotic
factor | D) | an allele |
|
|
|
6.
|
A continued decrease in black skimmer’s population will most likely
lead to
A) | a decrease in scavenger populations | B) | an increase in producer
populations | C) | an increase in prey animal populations | D) | a decrease in decomposer
populations |
|
|
|
Use the diagram below to answer the next two numbers. 
|
|
|
7.
|
Which of these is a nucleotide?
|
|
|
8.
|
Which of these is a sugar?
|
|
|
9.
|
In the fall, the leaves of many plants change color. Which of the following
abiotic factors is primarily responsible for causing this change?
A) | increased pH | B) | decreased acidity | C) | increased
water | D) | decreased light |
|
|
|
10.
|
Which of these combinations results in the
expression of a recessive trait?
A) | a dominant allele and a recessive
allele | B) | a dominant sex-linked allele and a Y
chromosome | C) | two recessive
alleles | D) | two dominant
alleles |
|
|
|
11.
|
Researchers are studying slider turtles. Slider turtles hatch on the beach.
The researchers discovered that larger baby turtles were more likely to survive than smaller baby
turtles. They hypothesized that the larger turtles could move more quickly toward the water than the
smaller turtles, reducing their exposure to predators.
The survival advantage for the larger
baby turtles is a result of -
A) | gene splicing | B) | natural selection | C) | commensalism | D) | mutualism |
|
|
|
12.
|
In humans the trait of having freckles (F) is dominant to not having freckles
(f). Which genotype and phenotype are correctly paired?
A) | Ff? –no freckles | B) | Ff? –freckles | C) | FF? –no
freckles | D) | ff? –freckles |
|
|
|
13.
|
A strand of DNA has a nucleotide base sequence of TAC-CGG-AGT. Which of the
following is the complementary mRNA nucleotide sequence produced from the strand of DNA?
A) | AGU-UCC-UAC | B) | AUG-GCC-UCA | C) | ACU-GAA-CGA | D) | UAC-CGG-AGU |
|
|
|
|
|
|
14.
|
Refer to the illustration above. The diagram shows a(n)
A) | energy pyramid. | C) | community. | B) | food web. | D) | population. |
|
|
|
15.
|
Refer to the illustration above. Level A is composed of
A) | carnivores. | C) | producers. | B) | herbivores. | D) | omnivores. |
|
|
|
16.
|
Refer to the illustration above. On the diagram, animals that feed on plant
eaters are no lower than
A) | level D. | C) | level A. | B) | level B. | D) | level C. |
|
|
|
17.
|
Refer to the illustration above. How much energy is available to the organisms
in level C?
A) | all of the energy in level A plus the energy in level B | B) | 10 percent of the
energy in level B | C) | 90 percent of the energy in level
B | D) | all of the energy in level A minus the energy in level
B |
|
|
|
18.
|
If you spill a chemical, you should
A) | tell your lab partner to clean up the spill. | B) | soak up the spill
with paper towels and throw them in the wastebasket. | C) | clean up the spill with a
sponge. | D) | tell the teacher. |
|
|
|
19.
|
In humans, the allele for having a hairline with a widow’s peak (H) is
dominant to having a straight hairline (h).  A woman that is
homozygous dominant for having a widow’s peak and a man that is heterozygous for having a
widow’s peak have a child. What is the probability that their child will have a widow’s
peak?
|
|
|
20.
|
Which of the following statements is true of homozygous alleles?
A) | They are different forms of the same trait. | B) | They are identical
forms of the same gene. | C) | They are always inherited
together. | D) | They are identical forms of two different genes. |
|
|
|
21.
|
Depending on the environmental conditions, Euglena, a unicellular
protist, can act as either a producer or a consumer. Euglena will most likely
act as a consumer when placed in which of these environments?
A) | acidic | B) | cool | C) | no-light | D) | low-oxygen |
|
|
|
22.
|
Most carbohydrates in the human body are -
A) | not easily absorbed into the bloodstream | B) | used as building
blocks for proteins | C) | consumed as a source of
energy | D) | used as catalysts for reactions in cells |
|
|
|
23.
|
Which of these is an example of homeostasis in a multicellular
organism?
A) | growing larger and stronger | B) | inheriting a trait | C) | building a
nest | D) | regulating body temperature |
|
|
|
Use the information and the diagram below to answer the following
questions.
Squid are marine animals that have a complete circulatory system and
reproduce
sexually. A diagram of a squid is shown below.
|
|
|
24.
|
Which of these transports nutrients to the cells of a squid?
A) | sea water | B) | blood | C) | gametes | D) | nerves |
|
|
|
25.
|
Which of these is not a purpose of a squid’s sensory organs?
A) | locating prey | B) | finding mates | C) | excreting
waste | D) | avoiding predators |
|
|
|
26.
|
What organ system controls the movement of the squid’s
tentacles?
A) | nervous system | B) | respiratory system | C) | excretory
system | D) | circulatory system |
|
|
|
27.
|
Students are conducting an experiment to determine if sugars are present in
foods. They heat a test tube containing a sugar solution in a beaker of water.
Which of these is
an unsafe laboratory practice in this experiment?
A) | rinsing hands with water after handling the materials | B) | wearing safety
goggles while heating the sugar solution | C) | heating the sugar solution in a closed test
tube | D) | using a test tube clamp to hold the test tube |
|
|
|
28.
|
Cheryl wants to perform an investigation that requires using hazardous
chemicals. The following steps of the investigation are not in the correct
order.
1. Perform the investigation.
2.
Design the investigation.
3. Put on gloves, goggles, and an
apron.
4. Dispose of waste materials.
Which of these is the correct
sequence of steps to safely complete the investigation?
A) | 4-1-3-2 | B) | 1-3-4-2 | C) | 2-3-1-4 | D) | 3-2-1-4 |
|
|
|
29.
|
The diagram below represents a coastal food web.  Global warming causes an increase in coastal water temperatures. Increased coastal
water temperature causes a decrease in reproduction of krill. Which of these would most likely
experience an increase in population? A) | herring | B) | phytoplankton | C) | gull | D) | anchovy |
|
|
|
30.
|
One kind of chromosomal mutation can occur during meiosis when a pair of
chromosomes that carry genes for the same trait fail to separate. Which of these represents the sex
chromosomes of a male organism when this type of chromosomal mutation has occurred?
|
|
|
Use the information below to answer the following item.
Many bird
species in the forests of eastern North America have very large
geographic ranges. Bird species in
tropical forests have very small geographic
ranges. Many forest areas within the ranges of these
birds are being destroyed.
Scientists believe that the destruction of forests affects birds with
small ranges
more than birds with large ranges.
|
|
|
31.
|
As a result of the destruction of forests, birds with a small geographic range
are most likely to
A) | lose their ability to navigate | B) | lose their specific niche | C) | become less
susceptible to disease | D) | adapt to a new
environment |
|
|
|
32.
|
Which of these is an abiotic factor in both North American and tropical forest
ecosystems?
A) | number of consumers | B) | intensity of light | C) | number of
producers | D) | age of trees |
|
|
|
Use the forest food web below to answer the next three (3) numbers.
|
|
|
33.
|
The deer tick feeds on the blood of the red squirrel, deer, and deer mouse.
Which of these best describes the role of the deer tick in the forest food web?
A) | carnivore | B) | producer | C) | parasite | D) | omnivore |
|
|
|
34.
|
Which of these describes the role of the red oak in the forest food web?
A) | herbivore | B) | producer | C) | parasite | D) | omnivore |
|
|
|
35.
|
When gypsy moth caterpillars hatch, which of these populations benefits
first?
A) | deer tick | B) | carpenter ant | C) | blue
jay | D) | red oak |
|
|
|
Use the information below to answer the next two (2) numbers.
In an
ocean environment, marine life is most abundant in the euphotic zone. This zone extends from the
surface waters to a depth of 200 meters, the deepest depth that sunlight can reach. It is in this
range that phytoplankton capture energy from the sun. Although they are microscopic organisms,
phytoplankton are the foundation that supports the marine food web.
|
|
|
36.
|
Which trophic level is most likely missing from an ocean floor food web at a
depth of 800 meters?
A) | scavengers | B) | decomposers | C) | producers | D) | carnivores |
|
|
|
37.
|
A sperm cell of a moth has 112 chromosomes. How many
chromosomes are in the moth’s wing cells?
|
|
|
38.
|
Amphibians were the first vertebrates to live on land. The ancestors of
amphibians were probably lobe-finned fish. The diagram below shows this development of amphibians
over time.  Which of these terms best describes how
amphibians could have developed from lobe-finned fish? A) | natural selection | B) | cloning | C) | migration | D) | selective
breeding |
|
|
|
39.
|
When the settlers arrived in New England, many forests were turned into fields.
Eventually, some fields were abandoned and then grew back into forests. This is best described
as
A) | pioneer species. | C) | niche realization. | B) | succession. | D) | coevolution. |
|
|
|
Use the information and the table below to answer the following.
Mammals, birds, modern reptiles, and theropod dinosaurs are vertebrates. The table below
shows some of the differences and similarities among these groups of vertebrates. 
|
|
|
40.
|
Birds, mammals, and theropod dinosaurs can maintain a constant body temperature.
The ability to maintain a constant body temperature is an exmaple of -
A) | homeostasis | B) | an acquired trait | C) | respiration | D) | a reptilian
trait |
|
|
|
41.
|
Which of the following precautions should you follow in the laboratory if you
have long hair?
A) | Be sure your hair is clean. | B) | No precautions are necessary with long
hair. | C) | Tie your hair back from your face. | D) | Long hair is not allowed in the laboratory
under any circumstances. |
|
|
|
|
|
|
42.
|
Refer to the illustration above. The process shown in the diagram is known
as
A) | competitive exclusion. | C) | symbiosis. | B) | succession. | D) | oligotrophy. |
|
|
|
43.
|
Below is a diagram that represents the relationship between two glands.  This is an example of A) | anaerobic respiration | B) | polarity | C) | feedback | D) | natural
selection |
|
|
|
A marine environment provides a habitat for a variety of plants and animals.
A small part of a marine food web is shown below.
|
|
|
44.
|
Horseshoe crabs are used by fisherman for bait. If the horseshoe crab
population were reduced by overfishing, which of these groups of organisms would most likely
decrease in number?
A) | sanderlings, loggerhead turtles, and striped bass | B) | grackles, plankton,
and diamondback terrapin | C) | plankton, razor clams, and loggerhead
turtles | D) | striped bass, sanderlings, and razor clams |
|
|
|
45.
|
Which of these describes the role of the sanderling in the marine food
web?
A) | producer | B) | herbivore | C) | carnivore | D) | omnivore |
|
|
|
46.
|
Below are parts of the mitochondrial DNA codes for the American black bear,
the giant panda, the red panda, and the raccoon. Based on this
information, which two species are most closely related?
A) | the American black bear and the giant panda | B) | the red panda and
the giant panda | C) | the American black bear and the raccoon | D) | the red panda and
the raccoon |
|
|
|
In humans, having freckles ( F) is dominant to not having freckles
( f). The inheritance of these traits can be studied using a Punnett square similar to the one
shown below.
|
|
|
47.
|
Refer to the illustration above. The child in box 3 of the Punnett square has
the genotype
|
|
|
48.
|
Refer to the illustration above. The child represented in box 1 in the Punnett
square would
A) | be heterozygous for freckles. | B) | be homozygous for freckles. | C) | not have
freckles. | D) | have an extra freckles chromosome. |
|
|
|
49.
|
Refer to the illustration above. Which box in the Punnett square represents a
child who does not have freckles?
A) | box 3 | C) | box 4 | B) | box 1 | D) | box 2 |
|
|
|
50.
|
Refer to the illustration above. The parents shown in the Punnett square could
have children with a phenotype ratio of
A) | 2:2. | C) | 4:0. | B) | 3:1. | D) | 1:2:1. |
|
|
|
Use the the information and the pedigree below to answer the next three (3)
questions.
In humans, the allele for having feet with normal arches is dominant (A). The
allele
for flat feet is recessive (a). The pedigree below shows the occurrence of normal
arches
and flat feet in four generations of a family. In the pedigree, individuals are
identified by the
generation and individual numbers. For example, Individual 2 in
Generation I is identified as
I-2.
|
|
|
51.
|
Which of these individuals in the pedigree is a male with the genotype
aa?
A) | Individual I-1 | B) | Individual III-2 | C) | Individual
III-5 | D) | Individual II-2 |
|
|
|
52.
|
Individuals III-6 and III-7 have two children and are expecting a third child.
Their two children have flat feet. What is the chance that the third child will have normal
arches?
|
|
|
53.
|
Which of these Punnett squares shows the cross between Individual II-4 and
Individual II-5?
|
|
|
54.
|
Which of these should be done before beginning a laboratory
investigation?
A) | record data on table | C) | draw conclusions | B) | review the procedure | D) | collect data |
|
|
|
55.
|
Before starting an investigation, you should
A) | try out the equipment so you know how it works. | B) | try a procedure you
think will work better. | C) | read all the instructions and ask your teacher
if you have any questions. | D) | read all the instructions and start the lab
even if you have questions. |
|
|
|
Use the information below to answer the following item.
The water
quality of the Chesapeake Bay is measured by the Chesapeake Bay Water Quality Monitoring Program.
Scientists measure the salinity, temperature, pH, and oxygen levels to help determine the health of
the Bay. Healthy water also contains appropriate amounts of nutrients. Monitoring water quality helps
communities make decisions about the Bay.
|
|
|
56.
|
Which of these would likely be the most immediate result if oxygen levels in
the Bay decreased by 90%?
A) | increase in producer populations | C) | decrease in fish
populations | B) | decrease in salinity levels | D) | increase in water temperature |
|
|
|
Use the relationships in the food web below to answer the following
questions.
|
|
|
57.
|
According to the food web, which of these supply energy for all the other
organisms?
A) | snakes | B) | grasses | C) | insects | D) | cougars |
|
|
|
58.
|
The relationship between the mice and the insects is an example of
A) | commensalism | B) | parasite – host | C) | mutualism | D) | predator –
prey |
|
|
|
59.
|
Which of these lists all of the predators shown in the food web?
A) | cougars, snakes, shrews, and mice | B) | cougars, snakes, and shrews | C) | cougars and
snakes | D) | cougars only |
|
|
|
60.
|
Students will conduct a laboratory experiment using
the following materials: a Bunsen burner, a beaker of water, glass tubing, four test tubes containing
different chemicals, and rubber stoppers. Which of these steps is most critical for students to follow when using these materials in the
lab?
A) | washing hands before starting the
experiment | B) | writing the lab
procedure in a notebook | C) | placing a stopper
on all test tubes before heating them | D) | wearing eye
protection at all times |
|
|
|
61.
|
Horses have 64 chromosomes in each body cell. If a horse cell undergoes
meiosis,
how many chromosomes should be in each gamete?
|
|
|
62.
|
Some types of bacteria live deep in the ocean where sunlight cannot reach.
These
bacteria use the energy stored in inorganic molecules to make sugars.
Which of these
processes do the bacteria use to produce sugars?
A) | chemosynthesis | B) | photosynthesis | C) | aerobic
respiration | D) | nitrogen fixation |
|
|
|
63.
|
Red-green color blindness affects about 7.0% of the human male population. It
affects approximately 0.4% of the human female population. These data suggest that red-green color
blindness is a -
A) | dominant trait carried on the X chromosome | B) | recessive trait
carried on the X chromosome | C) | recessive trait carried on the Y
chromosome | D) | dominant trait carried on the Y chromosome |
|
|
|
64.
|
A student designed the chart below to classify different organisms into four
groups.
According to the student’s
classification chart, an organism with no wings and four
legs would belong to which
group?
A) | Group D | B) | Group A | C) | Group
C | D) | Group B |
|
|
|
Use the information and the Punnett square below to answer the next two (2)
numbers.
In guinea pigs, the allele for black fur
(B) is dominant. The allele for brown fur (b)
is recessive. Two guinea pigs were crossed as shown
in the Punnett square below.
Numbers 1, 2, 3, and 4 represent the types of offspring produced from
the cross.
|
|
|
65.
|
Which of these describes the phenotypes of the parent guinea pigs?
A) | One parent has black fur, and the other has brown fur. | B) | Both parents have
black fur. | C) | One parent has a mixture of black and brown fur, and the other has black
fur. | D) | Both parents have brown fur. |
|
|
|
66.
|
What is the probability that an offspring from this cross would have brown
fur?
|
|
|
67.
|
Some bacteria live in habitats without light. They produce their own food
using
inorganic substances from the environment.
Which of these terms best describes
this process?
A) | binary fission | C) | photosynthesis | B) | cellular respiration | D) | chemosynthesis |
|
|
|
68.
|
Tallness (T) is dominant to shortness (t) in pea plants. Which of
the following represents a genotype of a pea plant that is heterozygous for tallness?
|
|
|
69.
|
The ears of foxes help to regulate body heat. The fennec fox lives in the
North African desert and has large ears that release body heat. The Arctic fox lives in cold climates
and has small ears that conserve body heat.  Which of these processes
led to the development of different ear sizes in foxes?
A) | natural selection | B) | mutualism | C) | selective
breeding | D) | succession |
|
|
|
70.
|
After an egg cell containing 16 chromosomes is fertilized, how many chromosomes
will be present in the zygote?
|
|
|
71.
|
The presence or absence of freckles is determined by one gene. The allele for
freckle (F) is dominant and the allele for the absence of freckle (f) is
recessive.
A couple has several children. All of the children have freckles because their
parents’ genotypes can only produce children with freckles. Which of these are most
likely the genotypes of the two parents?
A) | ff and ff | B) | FF and ff | C) | Ff and
ff | D) | Ff and Ff |
|
|
|
72.
|
Which of these statements best explains how genes and proteins are
related?
A) | Proteins are the building blocks of genes. | B) | Genes are the
building blocks of proteins. | C) | Genes are segments of DNA that code for
proteins. | D) | Proteins are segments of DNA that code for genes. |
|
|
|
73.
|
The kinds of species that live in certain areas are determined largely by
A) | weather. | C) | climate. | B) | plants. | D) | soil. |
|
|
|
Use the information and the table below to answer the following.
Elodea, a freshwater plant, releases gas bubbles when it is placed in direct light. In
an investigation, a student placed a lamp at different distances from an aquarium containing
Elodea. The student counted the number of bubbles produced by the Elodea plant. His
data are shown in the table below.
|
|
|
74.
|
The bubbles released by Elodea contain mostly
A) | carbon dioxide | B) | oxygen | C) | water
vapor | D) | nitrogen |
|
|
|
75.
|
What energy source is used by Elodea?
A) | heat | B) | oxygen | C) | carbon
dioxide | D) | light |
|
|
|
Use the information and the figure below to answer the following
question.
The figure below shows the skeletal structure of a seal’s flipper and a
monkey’s arm.  The skeletal structures of the flipper
and the arm are similar, even though they have different functions. Seals use their flippers for
swimming, while monkeys use their arms primarily for grasping and lifting.
|
|
|
76.
|
The seal’s flipper and the monkey’s arm differ in appearance. This
difference is the result of
A) | succession | B) | migration | C) | natural
selection | D) | genetic engineering |
|
|
|
77.
|
Which of these explains why the skeletal structures of the seal’s flipper
and the monkey’s arm are similar?
A) | Seals and monkeys have a common ancestor. | B) | Seals and monkeys
have identical DNA sequences. | C) | All of the same genetic mutations occurred in
seals and monkeys. | D) | All of the same vitamins are used for bone
formation in seals and monkeys |
|
|
|
78.
|
What process produces male and female reproductive cells in plants?
A) | meiosis | B) | mitosis | C) | fertilization | D) | replication |
|
|
|
79.
|
Deep sea bacteria live at ocean depths too great for light to reach. These
bacteria
make their own food. Which of these is the source of energy for the bacteria?
A) | DNA replication | C) | inorganic compounds | B) | nucleic acids | D) | binary fission |
|
|
|
80.
|
The hind leg bones shown in the whale in Figure 10.2 are examples of  A) | analogous structures. | B) | fossil structures. | C) | vestigial
structures. | D) | homologous structures. |
|
|
|
81.
|
Which RNA sequence is produced using the DNA sequence AGC-TAC-ACT?
A) | UCG-AUG-UGA | C) | AGC-UAC-ACU | B) | TCG-ATG-TGA | D) | UCG-UAC-ACU |
|
|
|
82.
|
The chart below is the nutrition facts found on a bag of pretzels.
Which of the following equations could be used to determine the number of
pretzels
in a 100-Calorie serving?
A) | X = 30
100 120 | C) | 25 = 120
100 X | B) |
X = 25
100
120 | D) | 30
= 120
100
X |
|
|
|
83.
|
Which of these is an example of a heterozygous genotype?
A) | wrinkled | B) | RR | C) | round | D) | Rr |
|
|
|
84.
|
The method for safely determining the odor of a chemical is called
A) | decanting. | C) | stirring. | B) | wafting. | D) | inhaling. |
|
|
|
85.
|
A new species is introduced into an area. This can have harmful effects on
species already inhabiting the area. The harmful effects are most likely a result of
A) | competition | B) | mutualism | C) | commensalism | D) | succession |
|
|
|
86.
|
You should not mix chemicals together unless told to do so. Which choice is NOT
a reason for this rule?
A) | The mixture could explode. | B) | The mixture could be
poisonous. | C) | The mixture could produce a toxic gas. | D) | The mixture could splash out of the
container. |
|
|
|
87.
|
You should wear goggles in the lab when you are working with.
A) | chemicals. | B) | all of the above. | C) | objects that could
become airborne. | D) | flames. |
|
|
|
88.
|
A scientist is trying to discover a new treatment to stop cancer cells from
dividing. In the cancer cells, which of these processes will stop if the treatment is
successful?
A) | binary fission | B) | mitosis | C) | chemosynthesis | D) | genetic recombination
|
|
|
|
89.
|
In a recent experiment, scientists studied the effects of increased carbon
dioxide levels on the growth of pine trees. The scientists observed that increased levels of carbon
dioxide resulted in an increase in the average circumference of the tree trunks. The change in
circumference is a result of the process of
A) | transpiration | B) | adaptation | C) | photosynthesis | D) | osmosis |
|
|
|
90.
|
In humans, the allele for long eyelashes is dominant (L) and the allele for
short
eyelashes is recessive (l). A female who is heterozygous for long eyelashes and a
male
with short eyelashes have a child.
What is the probability that their offspring will have
short eyelashes?
|
|
|
91.
|
An ecosystem contains organisms interacting with each other and their physical
environment. Which of these is the best indicator of a healthy ecosystem?
A) | There are few herbivores. | B) | There are many different
species. | C) | There are few decomposers. | D) | There is a large population of only one
species. |
|
|
|
92.
|
Sea grasses grow on the ocean floor in shallow areas. Runoff from the land
into the
ocean can cause the waters to become cloudy. Cloudy water affects the sea grasses’
ability to make their own food because there is not enough
A) | water | C) | carbon | B) | oxygen | D) | light |
|
|
|
93.
|
Aphids are insects that feed on fluids from the stems of plants. After the
aphids ingest the plant fluids, they excrete a liquid called honeydew.
Ladybugs eat aphids,
which are a source of protein for the ladybugs. Which of these terms best describes the
relationship between the ladybugs and the aphids?
A) | parasite-host | B) | commensalism | C) | predator-prey | D) | mutualism |
|
|
|
94.
|
The nucleotide base sequence of a strand of DNA is TAC-CGG-AGT. What is
the
sequence of the complementary DNA strand?
A) | TAC-CGG-AGT | B) | ACT-GAA-CGA | C) | AGT-TCC-TAC | D) | ATG-GCC-TCA |
|
|
|
95.
|
Which of these represents the structure of messenger RNA?
|
|
|
Corals are marine animals that often live in tropical seas. Many types of
corals have unicellular algae living in their tissues. The algae provide up to 98 percent of the
corals' food. The corals provide protection and inorganic nutrients for the algae.
|
|
|
96.
|
Algae leave the coral when the water is too warm. What kind of factor is
temperature on this relationship?
A) | parasitic | C) | commensalistic | B) | biotic | D) | abiotic |
|
|
|
97.
|
The Punnett square in Figure 7.1 shows a cross between two parents who have the
genotype Ss for a genetic disorder caused by a recessive allele. Which of the following will
have the genetic disorder?  A) | Ss offspring | B) | Ss parent | C) | SS
offspring | D) | ss offspring |
|
|
|
98.
|
Most organisms need oxygen for their cells to function normally. In mammals,
two organ systems work together to move oxygen throughout the body.
The respiratory system
brings oxygen into the body from the environment. Which of these body systems is directly
involved in the delivery of oxygen to the major organs of the human body?
A) | the endocrine system | B) | the circulatory system | C) | the digestive
system | D) | the nervous system |
|
|
|
99.
|
If a liquid is infl ammable, you should be sure to keep it
A) | next to sources of heat. | C) | near the sink. | B) | away from heat or fl
ames | D) | in the fume
hood. |
|
|
|
100.
|
The human body functions properly when organ systems work together.
Which
organ system works with the muscular system to control muscle contraction?
A) | nervous | B) | circulatory | C) | excretory | D) | reproductive |
|