1. What class is this? A.) biology B.) biology C.) biology D.) biology
iRespond Question F
Multiple Choice
A.) biology
B.) biology
C.) biology
D.) biology
E.)

2. Which of the following is NOT one of the factors that play a role in population growth rate?
iRespond Question F
Multiple Choice
A.) immigration
B.) death rate
C.) emigration
D.) demography
E.)

3. All the living and non-living things in an area make up an:
iRespond Question F
Multiple Choice
A.) abiotic factor
B.) ecosystem
C.) population
D.) tundra
E.)

4. Enzymes increase the rate of a reaction by______________.
iRespond Question F
Multiple Choice
A.) increasing the temperature of the substrates
B.) contributing electrons to the reaction
C.) changing the pH of the substrates
D.) decreasing activation energy
E.)

5. The substance that is acted upon by an enzyme is _________.
iRespond Question F
Multiple Choice
A.) the substrate
B.) the protein base
C.) the by-product
D.) the end product
E.)

6. A.) remain about the same
Alligators in wetland regions normally feed on animals such as shorebirds. Shorebirds usually feed on small fish and frogs to survive. Recently, scientists released a large number of alligators into a wetland region. Scientists expect that as a result of this increase in the alligator population, the populations of small fish and frogs will
iRespond Question F
Multiple Choice
A.) remain about the same
B.) rapidly decrease
C.) become extinct.
D.) notably increase
E.)

7. The relationship one organism has with another organism is known as:
iRespond Question F
Multiple Choice
A.) biosphere
B.) symbiosis
C.) population
D.) predation
E.)

8. The hunting and killing of one organism by another organism is known as:
iRespond Question F
Multiple Choice
A.) commensalism
B.) predation
C.) parasitism
D.) mutualism
E.)

9. When organisms want to use the same resources it can result in:
iRespond Question F
Multiple Choice
A.) climax community
B.) succession
C.) parasitism
D.) competition
E.)

10. ecology from smallest to largest?
Which of the following series correctly represents the levels of organization within
ecology from smallest to largest?
iRespond Question F
Multiple Choice
A.) ecosystem -> population -> community -> biosphere
B.) biosphere -> community -> population -> ecosystem
C.) community -> population -> ecosystem -> biosphere
D.) population -> community -> ecosystem -> biosphere
E.)

11. When individuals in a population reproduce at a constant rate, it is called
iRespond Question F
Multiple Choice
A.) logistic growth
B.) growth density
C.) multiple growth.
D.) exponential growth
E.)

12. The movement of organisms into a given area from another area is called
iRespond Question F
Multiple Choice
A.) immigration
B.) population shift.
C.) emigration
D.) carrying capacity.
E.)

13. There are 150 Saguaro cactus plants per square kilometer in a certain area of Arizona desert. To which population characteristic does this information refer?
iRespond Question F
Multiple Choice
A.) growth rate
B.) geographic distribution
C.) age structure
D.) population density
E.)

14. In secondary succession which of the following is a true statement:
iRespond Question F
Multiple Choice
A.) it happens before a natural disaster occurs
B.) it happens on bare rock
C.) it occurs after a natural disaster
D.) pioneer species time period is longer
E.)

15. The relationship where an orchid plant attaches itself to a tree branch without doing any harm to the tree is known as:
iRespond Question F
Multiple Choice
A.) parasitism
B.) mutualism
C.) commensalism
D.) ecosystem
E.)

16. An organism that obtains energy by hunting then eating dead organisms is called a(an)______
iRespond Question F
Multiple Choice
A.) producer
B.) chemotroph
C.) autotroph
D.) scavenger
E.)

17. The biome characterized by drought resistant plants with animals and plants that adapt to extreme hot and cold conditions is:
iRespond Question F
Multiple Choice
A.) rainforest
B.) taiga
C.) tundra
D.) desert
E.)

18. Growth with unlimited resources is called:
iRespond Question F
Multiple Choice
A.) exponential growth
B.) logistical growth
C.) succession
D.) energy
E.)

19. A.) transpiration. B.) photosynthesis. C.) respiration. D.) combustion
Plants use carbon dioxide to build organic molecules during the process of …
iRespond Question F
Multiple Choice
A.) transpiration.
B.) photosynthesis.
C.) respiration.
D.) combustion
E.)

20. A.) carbohydrates B.) sunlight C.) water D.) carbon E.)
What is the original source of almost all the energy in most ecosystems? F
iRespond Question
A.) carbohydrates
B.) sunlight
C.) water
D.) carbon
E.)

21. Which of the following descriptions about the organization of an ecosystem is correct?
iRespond Question F
Multiple Choice
A.) Communities make up individuals, which make up populations.
B.) Populations make up individuals, which make up communities
C.) Individuals make up communities, which make up populations.
D.) Individuals make up populations, which make up communities
E.)

22. A relationship between a producer and consumer is best illustrated by a_____________.
iRespond Question F
Multiple Choice
A.) snake eating a bird
B.) lion eating a zebra.
C.) fox eating a mouse.
D.) zebra eating grass
E.)

23. Which of the following is NOT likely to be a limiting factor on the sea otter population?
iRespond Question F
Multiple Choice
A.) disease
B.) predation
C.) competition
D.) drought
E.)

24. Which level of organization includes all of the other levels?
iRespond Question F
Multiple Choice
A.) organism
B.) ecosystem
C.) population
D.) community
E.)

25. Which of the following is NOT a characteristic of all living things?
iRespond Question F
Multiple Choice
A.) growth and development
B.) ability to move
C.) response to the environment
D.) ability to reproduce
E.)

26. Only 10 percent of the energy stored in an organism can be passed on to the next trophic level. Of the remaining energy, some is used for the organism’s life processes, and the rest is
iRespond Question F
Multiple Choice
A.) used in reproduction
B.) stored as body tissue
C.) stored as fat
D.) eliminated as heat.
E.)

27. The total amount of living tissue within a given trophic level is called the.
iRespond Question F
Multiple Choice
A.) organic mass
B.) trophic mass
C.) energy mass.
D.) biomass
E.)

28. All of the members of a particular species that live in one area are called a(an)
iRespond Question F
Multiple Choice
A.) biome
B.) population.
C.) community.
D.) ecosystem
E.)

29. The sulfur and nitrogen compounds in smog combine with water to form
iRespond Question F
Multiple Choice
A.) ozone
B.) acid rain
C.) ammonia.
D.) chlorofluorocarbons
E.)

30. Why are fossil fuels nonrenewable?
iRespond Question F
Multiple Choice
A.) They require hundreds of millions of years to form
B.) Their ecosystems change forever when they are burned.
C.) They are converted to carbon dioxide when they are burned.
D.) They exist in a very small supply.
E.)

31. The movements of energy and nutrients through living systems are different because
iRespond Question F
Multiple Choice
A.) energy flows in one direction and nutrients recycle
B.) energy is limited in the biosphere and nutrients are always available
C.) nutrients flow in one direction and energy recycles.
D.) energy forms chemical compounds and nutrients are lost as heat.
E.)

32. Carbon cycles through the biosphere in all of the following processes EXCEPT
iRespond Question F
Multiple Choice
A.) photosynthesis
B.) transpiration
C.) burning of fossil fuels.
D.) decomposition of plants and animals
E.)

33. Which of the following is NOT recycled in the biosphere?
iRespond Question F
Multiple Choice
A.) water
B.) nitrogen
C.) carbon
D.) energy
E.)

34. What would be the most likely effect of an increase in the use of CFCs?
iRespond Question F
Multiple Choice
A.) The ozone layer would suddenly disappear
B.) The ozone holes would get smaller
C.) The ozone holes would get larger.
D.) There would be no effect on ozone in the atmosphere
E.)

35. The number of different species in the biosphere is called
iRespond Question F
Multiple Choice
A.) biodiversity
B.) ecosystem diversity
C.) genetic diversity
D.) species diversity
E.)

36. A.) whitetail deer B.) polar bear C.) iguana D.) moose E.)
Which animal would be found in the biome that has cold to moderate winters, warm summers, fertile soils, and is home to a variety of vegetation, such as coniferous trees, broadleaf deciduous trees, flowering shrubs, and ferns?
iRespond Question F
Multiple Choice
A.) whitetail deer
B.) polar bear
C.) iguana
D.) moose
E.)

37. What is one difference between primary and secondary succession?
iRespond Question F
Multiple Choice
A.) Primary succession is slow and secondary succession is rapid
B.) Secondary succession begins on soil and primary succession begins on newly exposed surfaces
C.) Primary succession modifies the environment and secondary succession does not.
D.) Secondary succession begins with lichens and primary succession begins with trees
E.)

38. Several species of warblers can live in the same spruce tree ONLY because they
iRespond Question F
Multiple Choice
A.) have different habitats within the tree
B.) eat different foods within the tree.
C.) occupy different niches within the tree.
D.) can find different temperatures within the tree.
E.)

39. An organism’s niche is
iRespond Question F
Multiple Choice
A.) the range of physical and biological conditions in which an organism lives and the way in which it uses those conditions.
B.) all the physical and biological factors in the organism’s environment.
C.) the range of temperatures that the organism needs to survive.
D.) a full description of the place an organism lives
E.)

40. Which pair is correct? A.) G1 phase, DNA replication
iRespond Question F
Multiple Choice
A.) G1 phase, DNA replication
B.) G2 phase, preparation for mitosis
C.) S phase, cell division
D.) M phase, cell growth
E.)

41. The cell cycle is the C.) time from prophase until cytokinesis.
iRespond Question F
Multiple Choice
A.) series of events that cells go through as they grow and divide.
B.) period of time between the birth and the death of a cel
C.) time from prophase until cytokinesis.
D.) time it takes for one cell to undergo mitosis
E.)

42. During normal mitotic cell division, a parent cell having four chromosomes will produce two daughter cells, each containing
iRespond Question F
Multiple Choice
A.) two chromosomes
B.) four chromosomes
C.) eight chromosomes.
D.) sixteen chromosomes.
E.)

43. Which of the following structures is found in the cytoplasm?
iRespond Question F
Multiple Choice
A.) nucleolus
B.) ribosome
C.) chromatin
D.) cell wall
E.)

44. Which list represents the levels of organization in a multicellular organism from the simplest level to the most complex level?
iRespond Question F
Multiple Choice
A.) cell, tissue, organ system
B.) organ system, organ, tissue, cell
C.) tissue, organ, organ system
D.) cell, tissue, organ, organ system
E.)

45. A group of similar cells that perform a particular function is called a(an)
iRespond Question F
Multiple Choice
A.) organ.
B.) organ system
C.) tissue.
D.) division of labor.
E.)

46. An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes
iRespond Question F
Multiple Choice
A.) water to move into the cell.
B.) solutes to move into the cell.
C.) water to move out of the cell
D.) solutes to move out of the cell.
E.)

47. Which means of particle transport requires input of energy from the cell?
iRespond Question F
Multiple Choice
A.) diffusion
B.) osmosis
C.) facilitated diffusion
D.) active transport
E.)

48. Diffusion is the movement of molecules from
iRespond Question F
Multiple Choice
A.) an area of low concentration to an area of high concentration.
B.) an area of high concentration to an area of low concentration.
C.) an area of equilibrium to an area of high concentration
D.) all of the above
E.)

49. Which of the following structures serves as the cell’s boundary from its environment?
iRespond Question F
Multiple Choice
A.) mitochondrion
B.) cell membrane
C.) chloroplast
D.) channel proteins
E.)

50. Which sequence correctly traces the path of a protein in the cell?
iRespond Question F
Multiple Choice
A.) rough endoplasmic reticulum, Golgi apparatus, released from the cell
B.) ribosome, smooth endoplasmic reticulum, chloroplast
C.) smooth endoplasmic reticulum, lysosome, Golgi apparatus
D.) mitochondria, rough endoplasmic reticulum, cell membrane
E.)

51. Which organelle converts the chemical energy stored in food into compounds that are more convenient for the cell to use?
iRespond Question F
Multiple Choice
A.) chloroplast
B.) Golgi apparatus
C.) endoplasmic reticulum
D.) mitochondrion
E.)

52. carbon dioxide + water--> glucose + water + oxygen
The equation below represents a summary of a biological process. Which organism would go through this biological process?
carbon dioxide + water--> glucose + water + oxygen
iRespond Question F
Multiple Choice
A.) animals
B.) plants
C.) fungi
D.) rocks
E.)

53. When there is not enough oxygen present, human muscle cells conduct anaerobic respiration which results in sore muscles. This results in the build-up of:
iRespond Question F
Multiple Choice
A.) lactic acid
B.) alcohol
C.) yeast
D.) glucose
E.)