PLEASE ANSWER ALL question 3

Predation (hunting) is a positive benefit to the population of prey organisms because it tends to keep:

A. population low
B. Population high


question 4
An animal that eats only plants is a:

A. primary consumer
B. secondary consumer
C. tertiary consumer
D. primary consumer


question 5
An example of a producer is:

A. fungus
B. caterpillar
C. bird
D. water lily


question 6
Which of the following is an example of an ecosystem?:

A. air, water, grass, mouse, and badgers
B. air, water, sunlight, soil
C. hawks, mouse, badgers, and eagles
D. grass, trees, bushes, and flowers


question 7
All the following are examples of limiting factors for a population EXCEPT:

A. space
B. food
C. time
D. weather


question 8
An example of a biotic resource in a forest ecosystem is:

A. waterfall
B. tree
C. cliff
D. rock


question 9
The source of energy for almost all life on earth is:

A. sunlight
B. fungi
C. water
D. animals


question 10
In an energy pyramid , the lowest level has:

A. less energy than the top level
B. less energy than the second level
C. more energy than the top level
D. the same amount of energy is available to a consumer