Objective 3 Test: Question Preview (ID: 476)


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The butterfly and bird both have wings with similar functions but have differenct ancestors. This is an example of what kind of evolution?
a) convergent
b) divergent
c) punctuated
d) adaptive radiation

What factor limits the number of links in a food chain.
a) scarcity of prey
b) population size
c) energy loss
d) type of ecosystem

Why do plants have roots?
a) to photosynthesize
b) absorb water
c) conserve nutrients
d) reproduce

Which of the following is a biotic factor?
a) water
b) soil
c) light
d) tree

An oakworm eats the leaves off of an oak tree. What kind of relationship is this?
a) predatory
b) parasitic
c) commensalism
d) mutualism

A bee goes from flower to flower getting pollen to make honey. The bees also spread the pollen in order to fertilize more plants. What kind of relationship is this?
a) parasitic
b) commensalistic
c) mutualistic
d) predatory

Which of the following statements is TRUE?
a) viruses only have DNA
b) virus must reproduce in a host cell
c) virus can be killed by antibiotics
d) viruses are bigger than bacteria

How much energy is transferred at each trophic level?
a) 5%
b) 10%
c) 50%
d) 90%

Which of the following organisms is the first trophic level in the food chain?
a) herbivore
b) carnivore
c) producer
d) heterotroph

Darwin proposed the theory of evolution. Survival of the fittest is known as ____________________, which drives evolution.
a) sexual selection
b) artificial selection
c) natural selection
d) punctuated equilibrium

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