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Which of the following best describes hair?
- Hair growth occurs in the hair follicle.
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Which image shows a nonrenewable resource?
- The image of the gas stove burner (if it is understood to be natural gas, a fossil fuel).
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Which effect of long-term environmental change is the driving force behind evolution?
- adaptation
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Which causes an increase in greenhouse gases?
- burning of wood and coal
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Which is a component of the modern cell theory that was not part of the original cell theory?
- All cells are similar in composition and metabolic activities.
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How does coal differ from pine trees as a source of energy?
- Coal is a nonrenewable resource, while pine trees are a renewable resource.
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A biologist counts the number of zebras in a population each year, and notices an increase in the zebra population. Which describes the biologist’s actions?
- observation
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The ulna, radius, and humerus are the three bones of the arm. The elbow is formed where these bones meet. Which is another name for the elbow?
- joint
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What observation led researchers to propose that chloroplasts evolved from cyanobacteria?
- Both perform photosynthesis.
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Which is the best way to describe the biodiversity of an area?
- A pond has 12 species of organisms, including 300 animals and 40 plants.
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Which is most likely a source of air pollution?
- CFCs
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Which statement accurately describes short-term environmental changes?
- Short-term environmental changes immediately affect organisms in the environment.
-
Which term refers to a solution with a higher solute concentration outside the cell than inside the cell?
- hypertonic
-
The first strands of DNA were observed through which microscope?
- electron microscope
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What is likely to happen to a healthy population that is experiencing exponential growth?
- It will eventually reach its carrying capacity.
Which of the following best describes hair?
Hair is made of mostly tightly packed living cells.
Hair does not help control body temperature.
Hair growth occurs in the hair follicle.
Hair grows at 2.5mm a month.
2. Study these images.1: A gas stove burner. 2: Dry, brown beans. 3: Different types of vegetables. 4: A field of wheat.Which image shows a nonrenewable resource?
3. Which effect of long-term environmental change is the driving force behind evolution?
adaptation
extinction
migration
speciation
4. Which causes an increase in greenhouse gases?
change in wind patterns
strengthening of hurricanes
burning of wood and coal
movement of warm ocean waters
5. Which is a component of the modern cell theory that was not part of the original cell theory?
All organisms are made of cells.
All cells are similar in composition and metabolic activities.
All cells come from preexisting cells.
A cell is the basic unit of structure and function for all living things.
6. How does coal differ from pine trees as a source of energy?
Coal can be replaced easily, while pine trees are difficult to replace.
Coal is a nonrenewable resource, while pine trees are a renewable resource.
Coal is a clean source of energy, while pine trees cause environmental damage.
Coal is an expensive source of energy, while pine trees are an inexpensive source of energy.
7. A biologist counts the number of zebras in a population each year, and notices an increase in the zebra population. Which describes the biologist’s actions?
graphing
inference
observation
interacting
8. The ulna, radius, and humerus are the three bones of the arm. The elbow is formed where these bones meet. Which is another name for the elbow?
joint
tendon
cartilage
bone marrow
9. What observation led researchers to propose that chloroplasts evolved from cyanobacteria?
Both produce proteins.
Both contain mitochondria.
Both provide structure to cells.
Both perform photosynthesis.
10. Which is the best way to describe the biodiversity of an area?
A grassland has organisms that live on hundreds of acres of land.
A desert has 10 species of animals that can survive dry conditions.
A rainforest has fertile soil that supports many kinds of plants.
A pond has 12 species of organisms, including 300 animals and 40 plants.
11. Which is most likely a source of air pollution?
littering
CFCs
oil spill
runoff
12. Which statement accurately describes short-term environmental changes?
Short-term environmental changes cause changes in genetic makeup.
Short-term environmental changes do not happen suddenly with little warning.
Short-term environmental changes do not affect organisms within an ecosystem.
Short-term environmental changes immediately affect organisms in the environment.
13. Which term refers to a solution with a higher solute concentration outside the cell than inside the cell?
hypertonic
hypotonic
equitonic
isotonic
14. The first strands of DNA were observed through which microscope?
tunneling microscope
simple microscope
compound light microscope
electron microscope
15. What is likely to happen to a healthy population that is experiencing exponential growth?
It will eventually reach its carrying capacity.
It will experience a population crash.
It will go extinct in the near future.
It will continue to grow exponentially indefinitely.
9 answers
The immigration rate increased, while the death rate decreased.
The birth rate decreased, while the death rate increased.
The carrying capacity increased, while the immigration increased.
The emigration increased, while the birth rate increased.
17. Hyenas and lions have fierce battles over food. Which type of relationship does this describe?
parasitism
commensalism
predation
competition
18. How does the cell wall protect a plant cell?
The cell wall protects the cell by providing support and maintaining the cell's shape.
The cell wall protects the cell by storing food so the plant doesn't run out.
The cell wall is thin and flexible, which allows the cell to be moved without harming the organelles.
The cell wall is on the inside of the cell and serves to contain the contents of the cell.
19. Which structure of the excretory system mainly functions in filtration?
ureter
kidney
urethra
bladder
20. A microgram of skin cells.Which level of organization is shown in the image?
cell
tissue
organ
organ system
21. Which describes the primary function of the nervous system in keeping the body in homeostasis?
It processes the environment and sends out signals.
It controls movement and provides structure.
It physically breaks down and absorbs food.
It puts oxygen in the blood, which is essential for life.
22. How do changes in wind currents affect the short-term climate in a region?
Prevailing winds can cause a milder climate with heavy rain.
Global winds can cause a longer summer.
Prevailing winds can cause heavy rains or a dry climate.
Global winds can cause a longer winter.
23. A weakened immune system may be caused by
an overproduction of lysozymes.
muscle disorders.
immunodeficiency disorders.
complement systems in the blood.
24. A disease-causing bacteria successfully enters your body, making it past the first and second lines of defense. Which barrier will then act on the bacteria?
chemical
physical
biological
electrical
25. Veronica got a cut on her arm, and it started bleeding. Her circulatory system started working hard to prevent blood loss and protect against infection.
Which two components of the blood were functioning at a higher level than normal?
platelets and plasma
plasma and red blood cells
white blood cells and platelets
red blood cells and white blood cells
26. What is one way people have negatively affected land resources?
habitat restoration
urbanization
terrace farming
reforestation
27. Which organisms are prokaryotes?
archaea
fungi
protists
plants
28. The figures below refer to a herd of water buffalo.
Birth rate = 35
Death rate = 7
Immigration = 4
Emigration = 17
What is this population growth?
population increases by 41
population decreases by 15
population increases by 15
population decreases by 24
29. Drinking too much water during exercise can cause a condition in which the concentration of sodium in the blood is lower than normal.
What immediate response would the blood cells have in this condition?
Cells swell as water moves into them.
Cells swell as water moves out of them.
Cells shrivel as water moves out of them.
Cells shrivel as water moves into them.
30. A forest fire destroys an area. A small population of trees and a large population of birds are both affected. Which type of limiting factor causes this?
density dependent
density independent
population dependent
population independent
only ANSWERS
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The birth rate decreased, while the death rate increased.
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competition
-
The cell wall protects the cell by providing support and maintaining the cell's shape.
-
kidney
-
cell
-
It processes the environment and sends out signals.
-
Prevailing winds can cause heavy rains or a dry climate.
-
immunodeficiency disorders.
-
biological
-
white blood cells and platelets
-
urbanization
-
archaea
-
population decreases by 24
-
Cells swell as water moves into them.
-
density independent
Kudzu experiences loss due to overeating by livestock.
Kudzu is very susceptible to harsh winter conditions.
Kudzu outcompetes native plants for sunlight and nutrients.
Kudzu reproduces at a slow rate.
32. When a person sees a doctor about a respiratory illness, the doctor will want to determine if the sickness is in the upper respiratory tract or the lower respiratory tract. The starting point for the lower respiratory system is the trachea.
Which structures are part of the upper respiratory system? Select three options.
the larynx
the bronchus
the alveoli
the lungs
the pharynx
the nose
33. Which best describes the exocrine glands?
Exocrine glands function only for digestion and temperature regulation.
Exocrine glands can sometimes release substances out of the body.
Exocrine glands secrete substances into the bloodstream.
Exocrine glands are only found in the skin and mouth.
34. A Russian citizen has illegally obtained a Siberian tiger and is trying to sell the tiger’s fur in the United States. What treaty does this violate?
Tiger Treaty
Lacey Treaty
CITES
EPA
35. Which option identifies ways that people positively affect Earth’s resources?
use cars that emit fewer harmful gases, build dams, and stop using all resources
stop using all resources, increase mining efforts, and halt the runoff of factory waste into rivers and streams
build dams, use cars that emit fewer harmful gases, and halt the runoff of factory waste into rivers and streams
increase mining efforts, build dams, and use cars that emit fewer harmful gases
36. Imagine a person stepping on a pin and pulling his or her foot away. Look at the reflex arc of this scenario below.Arrows in an image in the following order: receptors in skin, sensory neuron, interneuron, motor neuron, effector (muscle).Which statement best describes the image?
The sensory nerve carries the signal from the effector to the interneuron, and the motor neuron carries the signal to the receptor.
The motor nerve carries the signal from the receptor to the interneuron, and the sensory neuron carries the signal to the effector.
The sensory nerve carries the signal from the receptor to the interneuron, and the motor neuron carries the signal to the effector.
The sensory nerve carries the signal from the receptor to the motor neuron, and the interneuron carries the signal to the effector.
37. A scientist measured an increase in nitrous oxide in the atmosphere. This increase would result in
an increase in the greenhouse effect.
a decrease in the greenhouse effect.
no change in the greenhouse effect.
a stabilization of the greenhouse effect.
38. Which best describes the movement through the nephron?
Blood is passed into the nephron and removed through the urethra.
All materials that exit the blood into the nephron are removed in the urine.
Some of the materials that exit the blood can be returned to the blood.
High quantities of sugars and water are excreted in the urine.
39. A student constructs a Venn diagram to compare the organelles in plant and animal cells.Venn Diagram of Plant and Animal CellsA Venn Diagram is shown. One circle is labeled Animal only, the other circle is labeled plant only, and the overlapping section is labeled both.Which organelle should be listed under “Animal Only” in the diagram?
nucleus
centriole
ribosome
cell wall
40. Which statement best distinguishes plant cells and animal cells?
There are more ribosomes in animal cells than in plant cells.
Plant cells have more lysosomes than animal cells have.
Plant cells have large vacuoles, and animal cells do not.
The position of the nucleus in the cells is different in plants and animals.
41. How are the tongue, ears, and nose a part of the nervous system?
They are sense organs that are part of the central nervous system.
They are sense organs that are part of the peripheral nervous system.
They are internal organs that are part of the central nervous system.
They are internal organs that are part of the peripheral nervous system.
42. ingrid drew a diagram to compare two ways in which biodiversity can be protected.Which label belongs in the area marked Y?
has the goal of releasing animals in the wild
is often done in nature preserves
usually protects entire ecosystems
focuses on increasing the population of a single species
image shows venn diagram with left saying captive breeding and middle y and then right habitat preservation
43. If the endoplasmic reticulum were removed from the cell, which organelle would not be able to function properly, and why?
mitochondria, because they rely on the ER as an energy source
ribosomes, because they receive proteins made by the ER
Golgi apparatus, because it packages proteins received from the ER
cytoplasm, because it relies on the ER for structural support
44. Why is water considered to be abiotic?
because it is not part of the biosphere
because it came from something living
because it is dead
because it is not living and never lived
45. The graph shows the changing levels of hormones during menstruation and ovulation. What happens to hormone levels during ovulation, and why is this important?A graph shows the changing levels of hormones during menstruation and ovulation. As an individual approaches ovulation, hormone levels increase.
The hormone levels increase to prepare a woman’s body to receive a fertilized egg.
The hormone levels decrease to prepare a woman’s body to receive a fertilized egg.
The hormone levels increase, and the next menstrual cycle begins with shedding of the uterine lining.
The hormone levels decrease, and the next menstrual cycle begins with shedding of the uterine lining.
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Kudzu outcompetes native plants for sunlight and nutrients.
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the larynx, the pharynx, the nose
-
Exocrine glands can sometimes release substances out of the body.
-
CITES
-
build dams, use cars that emit fewer harmful gases, and halt the runoff of factory waste into rivers and streams
-
The sensory nerve carries the signal from the receptor to the interneuron, and the motor neuron carries the signal to the effector.
-
an increase in the greenhouse effect.
-
Some of the materials that exit the blood can be returned to the blood.
-
centriole
-
Plant cells have large vacuoles, and animal cells do not.
-
They are sense organs that are part of the peripheral nervous system.
-
focuses on increasing the population of a single species
-
Golgi apparatus, because it packages proteins received from the ER
-
because it is not living and never lived
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The hormone levels increase to prepare a woman’s body to receive a fertilized egg.
preparation of the body for maintaining pregnancy
development of male secondary sex characteristics
development of female secondary sex characteristics
preparation of the fallopian tube for fertilization
47. Which of the following statements best describes scientific research?
Research typically uses one source.
Research typically uses a variety of sources.
Research is all done by doctors.
Research is all done in a laboratory.
48. Which type of process occurred in the ecosystem that was affected by the 1988 fires in Yellowstone Park, which destroyed most of the vegetation but left the soil intact?
primary succession
secondary succession
a climax community
species extinction
49. A doctor is trying to diagnose a patient with dry skin. Which of the following resources would be the most helpful?
a magazine ad about soft skin
a growth chart
online articles about dry skin
medical books
50. A diseased cell is no longer able to produce proteins. Which cell structure is most likely malfunctioning?
cell membrane
cytoplasm
ribosome
mitochondrion
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preparation of the body for maintaining pregnancy
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Research typically uses a variety of sources.
-
secondary succession
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online articles about dry skin
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ribosome
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