A newly evolved species may take over an ecological role or ecological niche that is already occupied, provided that
the new species has:a.
the ability to alter or change the environmental parameters.
b. fitness that is almost as high as the fitness of the original species.
c. the ability to grow to a larger size, thus providing it with a selective advantage.
d. features that make it competitively superior to the original occupant of that niche.
e. the ability to evolve through natural selection, as opposed to the original occupant, who cannot continue to
evolve.
d
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An acoelomate is an animal that
A. has a coelom. B. has a pseudocoelom. C. has both a coelom and a pseudocoelom. D. has neither a coelom nor a pseudocoelom. E. has a coelom during early development but later loses it.
Risks of genetic engineering include all of the following except ________
a. accidental transformation of non-target organisms b. creation of new pathogens c. GMOs escaping into the environment d. creation of toxic DNA
When a parent herring gull arrives at the nest with food, a chick will orient to and peck at the red spot on the parent's bill. The parent will then regurgitate the food into the chick's open mouth and the chick swallows it. What is this set of behaviors an example of?
A. sign stimulus B. fixed action pattern C. innate releasing mechanism D. taxis E. stimulus-response chain Clarify question: What is the key concept addressed by the question? What type of thinking is required? Gather Content: What do you already know about animal behaviors, specifically feeding behaviors in herring gulls? What other information is related to the question? Choose Answer: Given what you now know, what information is most likely to produce the correct answer? Reflection on Process: Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
What type of trait includes the tailbone found in humans and other primates without tails?
What will be an ideal response?