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3.5.2 Test (CST): Computer-Scored Unit Test
Question 9 of 25
2 Points
Which is part of the theory of evolution by natural selection?
O
A. All animals in a population are able to reproduce.
O
B. Animals have no variation among themselves.
O
C. Small changes add up over many generations.
O
D. Adaptations cannot be passed along to later generations.
SUBMIT

Recent research by marine biologists suggests that bottlenose dolphins have names for themselves. scientists played sounds they had identified as the names of particular dolphins, putting them through a synthesizer so that they did not sound like the voices of particular dolphins. the researchers found that dolphins would respond to the names of other dolphins that they were related to or associated with, but they ignored the names of strangers. this discovery suggests a much greater degree of self-awareness in aquatic mammals than was previously suspected. if this research holds up, what does it suggest about dolphins?

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.

Which is not a characteristic of bacteria? a. they are unicellular. b. they are prokaryotic. c. they are the smallest form of life on earth. d. they are multicellular.