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Interactions in Communities
Interactions in Communities Continued
Photosynthesis & Cellular Respiration
Roles in Energy Transfer
Energy & Matter in Ecosystems
100
Bears and coyotes both consume large plant-eating mammals such as deer. When the deer are in short supply, bears and coyotes may fight over the prey. This type of biological interaction is called A) commensalism. B) competition. C) mutualism. D) rumination.
What is B) competition?
100
Which is NOT a limiting factor in the environment? A) food B) money C) shelter D) water
What is B) money?
100
Three of these processes normally consume oxygen. Which process produces oxygen? A) combustion B) respiration in animals C) photosynthesis in plants D) operation of an acetylene torch
What is C) photosynthesis in plants?
100
Which of these organisms is a part of the group that produces all of the available energy in a food web? A) Fly B) Grass C) Mouse D) Sun
What is B) Grass?
100
Based on the energy pyramid, which organism(s) provide the MOST available energy? A) predator fish B) birds and mammals C) insects and zooplankton D) phytoplankton and bacteria
What is D) phytoplankton and bacteria?
200
A lion would be considered a ________ of a gazelle. A) competitor B) offspring C) predator D) prey
What is C) predator?
200
n a forest shorter trees do not survive as well as trees that reach the top of the canopy. Why is this the case? A) There is competition for air. B) There is competition for food. C) There is competition for a mate. D) There is competition for sunlight.
What is D) There is competition for sunlight?
200
CO2 is returned to the atmosphere by all methods EXCEPT A) combustion. B) decomposition. C)photosynthesis. D) respiration.
What is C)photosynthesis?
200
What happens to any matter that is not used by consumers in a food chain? A) It remains unconsumed forever. B) It is stored by all consumers for use in the future. C) It is recycled by producers and brought back into the food chain later. D) It is decomposed by decomposers and brought back into the food chain later.
What is D) It is decomposed by decomposers and brought back into the food chain later?
200
In the ecological pyramid, the amount of potential food available for each trophic level A) remains the same. B) increases over time. C) decreases from bottom to top. D) increases from bottom to top.
What is C) decreases from bottom to top?
300
Brown bears live in thick forests. Recently, many forests have been cut down to build homes. What will happen to the bears that usually live in the forests? A) New bears will move into the forest. B) The brown bears will increase in number. C) The bears will have less food to eat and will move away. D) The brown bears will start to hibernate earlier in the year.
What is C) The bears will have less food to eat and will move away?
300
Which relationship is an example of commensalism? A) Hyenas and lions fight over the same antelope kill. B) A tapeworm lives in the intestine of a dog, obtaining food for itself, while slowly harming the dog. C) Remora fish stick to large sharks, receiving a free ride and scraps of food the shark does not eat. The shark is neither helped nor harmed. D) A diamondback rattlesnake and a gopher turtle share a burrow. The turtle digs the hole, and the snake provides protection from predators for the turtle.
What is C) Remora fish stick to large sharks, receiving a free ride and scraps of food the shark does not eat. The shark is neither helped nor harmed?
300
What two processes fuel the carbon cycle? A) transpiration and transport B) photosynthesis and transport C) cellular respiration and transpiration D) cellular respiration and photosynthesis
What is D) cellular respiration and photosynthesis?
300
Plants → minnows → bass →bears Consider the food chain. What would MOST LIKELY happen if the bass started to disappear because too many of them had been caught during fishing season? A) The number of bear will increase. B) The plant population will increase. C) The number of minnows would increase. D) The number of minnows would decrease.
What is C) The number of minnows would increase?
300
What is an explanation of why producers are always found at the lowest trophic level? A) Producers are larger than consumers. B) Consumers are eaten by a variety of producers. C) Producers convert light energy into chemical energy. D) Producers are found in fewer numbers than consumers.
What is C) Producers convert light energy into chemical energy?
400
A species of rabbit lives in a meadow where grass plants are readily available during summer months. The rabbits do not stray far from the meadow because the plants supply food and protection from predators. One summer, a fire destroys the plants in the meadow. As a result of the absence of plants in the meadow, the rabbit population will probably A) decrease in size. B) increase and flourish. C) increase reproduction. D) switch to a different type of food.
What is A) decrease in size?
400
A species of insect is newly introduced into the United States from the Philippines. This insect becomes established, laying its eggs on the leaves of oak trees. How can a biologist determine if the relationship between the insect and the oak tree is commensalism, mutualism, or parasitism? A) If the insect benefits, the relationship is parasitism. B) If both the insect and the tree benefit, the relationship is commensalism. C) If the insect benefits and the tree neither benefits nor is harmed, the relationship is mutualism. D) If the insect benefits and the tree neither benefits nor is harmed, the relationship is commensalism.
What is D) If the insect benefits and the tree neither benefits nor is harmed, the relationship is commensalism?
400
Which statement describes what occurs in both animal and plant cells? A) Nitrogen is used for respiration and oxygen is a waste product. B) Oxygen is used for respiration and carbon dioxide is a waste product. C) Nitrogen is used for respiration and carbon dioxide is a waste product. D) Carbon dioxide is needed for respiration and oxygen is a waste product.
What is B) Oxygen is used for respiration and carbon dioxide is a waste product?
400
How would a food web would be affected if the plants were eliminated? A) Only the fungi would survive. B) Birds and nematodes would thrive. C) The food web would completely collapse. D) The food web would produce more bacteria to compensate.
What is C) The food web would completely collapse?
400
his element is found in all living things. It is recycled when organisms die. It is transformed from one form to another through photosynthesis and cellular respiration. That element is A) carbon. B) hydrogen. C) nitrogen. D) oxygen.
What is A) carbon?
500
A population of mice occupies a tree stump in a forest. During the last decade, there has been little change in the number of mice in the population. Which of the following would likely cause the number of mice to decrease quickly? A) a decrease in disease B) an increase in predation C) a decrease in competition D) an increase in length of mating season
What is B) an increase in predation?
500
The clownfish is a species of fish that lives between the stinging tentacles of sea anemones. The clownfish protects the anemone from anemone eating fish, while the anemone’s tentacles protect the clownfish from predators. The relationship between clownfish and anemone is an example of A) commensalism. B) competition. C) mutualism. D) parasitism.
What is C) mutualism?
500
The process of photosynthesis is essential in the oxygen/carbon dioxide cycle. Photosynthesis removes ______ from the atmosphere and produces and releases ______ into the atmosphere. A) glucose, oxygen B) oxygen, glucose C) carbon dioxide, oxygen D) oxygen, carbon dioxide
What is C) carbon dioxide, oxygen?
500
f you were to place the bear into the energy pyramid, the bear would go on ____level and have ________ amount of energy available to it. A) top; the least B) bottom; the least C) top; the greatest D) bottom; an intermediate
What is A) top; the least?
500
Respiration involves the breakdown of sugar. This process results in the production of energy for the cell. In order for cells to produce the MOST energy, what gas should be present? A) oxygen B) nitrogen C) water vapor D) carbon dioxide
What is A) oxygen/