Ahuman eats a deer. which of these terms applies to the relationship between the human and the deer? a human eats a deer. which of these terms applies to the relationship between the human and the deer? parasitism predation mutualism competition submitmy answersgive up part b humans and sharks both eat fish. which of these terms applies to the relationship between the human and the shark? humans and sharks both eat fish. which of these terms applies to the relationship between the human and the shark? parasitism competition predation mutualism submitmy answersgive up part c humans who have pets tend to be healthier than humans who do not have pets. which of these terms applies to the relationship between a human and a pet? humans who have pets tend to be healthier than humans who do not have pets. which of these terms applies to the relationship between a human and a pet? predation parasitism mutualism competition

1. A human eats a deer. Which of these terms applies to the relationship between the human and the deer?
predation

2.Humans and sharks both eat fish. Which of these terms applies to the relationship between the human and the shark?

Competition

3.Humans who have pets tend to be healthier than humans who do not have pets. Which of these terms applies to the relationship between a human and a pet?
mutualism

4.What is implied by the reference, "biotic portion of an ecosystem"?
the "living" portion of the ecosystem

5.What term applies to the relationship between a dog and a blood-sucking tick? parasitism

6.An egret eats insects stirred up by grazing animals. Which of these terms applies to the relationship between the egret and the grazing animal? commensalism
7. The concept that two species cannot occupy the same ecological niche simultaneously and continuously is called: the competitive exclusion principle
8. What is a serious problem that will result from predicted rises in global temperature? Species will be lost because rises in global temperature will exceed the rate at which natural selection can allow most organisms to adapt.
9. Why do most mutations occur? Random errors in DNA replication cause mutation.
10. What is the best definition of speciation? the process by which new species form
11. What is speciation resulting from two populations becoming isolated from one another? allopatric speciation
12.A scientific name is composed of two parts. What are they?Answers: genus and species
13. What is the smallest group that can evolve? population
14. A forest fire kills off 90% of a rabbit population. What has occurred in this population? bottleneck
15. How do founder effect, genetic drift, and a bottleneck relate to each other? Founder effect and bottleneck are types of genetic drift.
16. In the common phrase, "survival of the fittest," what determines how fit an individual is? reproductive success
17. Which postulate of natural selection is best supported by the work of Gregor Mendel? Traits are passed from parent to offspring.

18. What can you conclude by looking at the following sequences from the cytochrome c gene of humans, mice, and an unknown organism? Human - ATGGTCTCTTT Mouse - ACGGTCTGTTC Unknown - ACGGTGTGTTC The unknown organism is more closely related to mice than to humans.

19. What conclusion can you make from comparing the bones in a bird wing, a bat wing, and a pterodactyl wing? These organisms share a common ancestor with each other.

20. When predatory snakes eat songbirds with the loudest songs, they are acting as agents of what? natural selection

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