Define ecology A. the scientific study of interactions between cells and their g

Question

Define ecology A. the scientific study of interactions between cells and their genes B. the evolutionary history of a species C. the scientific study of how organisms change over time D. the scientific study of interactions between organisms and their environments E. a political philosophy that advocates protection of the environment All of the redwood trees in a forest together represent a(n) A. organism B. population C. community D. ecosystem E. biosphere All of the redwood trees, insects and birds in a forest together represent a(n) A. organism B. population C. community D. ecosystem E. biosphere All of the below are abiotic factors except A. water B. air C. oxygen D. sunlight E. predators Natural selection is the method or mechanism of evolution A. true B false Over time the predators get faster and then the prey must get faster in response, this is called A. coevolution B. bottleneck effect C. genetic drift D. sexual selection E. survival of the fastest The predator prey simulation demonstrated natural selection since A. the best adapted prey increased in numbers over time B. prey stopped reproducing C. the best adapted predators decreased in numbers over time D. the percent of each bean color remained constant over time Prey that get killed cannot pass their genes to their offspring, prey that survive can. This is an example of A. trophic levels B. competition C. differential reproductive success D. food webs E. mutations An owl pellet is A. an owl corpse B. owl feces C. a special type of ammunition used to blast owls D. the feathers of an owl, used for decorative purposes E. undigested and regurgitated remains of an owls prey Predator owls feeding on prey mice is an example of A. a feeding level B. a trophic level C. a food chain D. part of a food web E. all of the above

Explanation / Answer

1) Ecology is the study of relation of an organism to the physical environment.Hence answer D is correct

2)A population is the number of all the organisms of the same group or species, which live in a particular geographical area Redwoods constitute population. Hence answer is B population

3)a community is defined as the groups of different species living close enough to interact with one another. Here birds, insects and trees interact with each other and hence they represent a community . Answer C is correct

4)Abiotic factors are the non-living parts of the environment . Predators are living. Hence answer is E

5) True :Natural selection is one of the basic mechanisms of evolution, along with mutation, migration, and genetic drift.

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