The fact that birds have feathers and it is thought that some dinosaurs also had feathers is an example of _____
1.exaptation
2.stasis
3.coevolution
4.adaptive radiation
1
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One of the reasons that pufferfish are a good species to compare to humans is because
A. it is so easy to hybridize the two and investigate the consequences. B. they are so distantly related that it's easy to distinguish mutually conserved sequences. C. the introns are often identical. D. of the rapid response time in pufferfish to artificial selection. E. they have been separated for so many millions of years and yet the gene sequence is almost identical.
Monocytes and lymphocytes are agranular leukocytes.
Answer the following statement true (T) or false (F)
The ____________ pressure in the capillaries drives the filtration of water and small molecules from the blood into the ____________ space of the tissues.
Fill in the blank(s) with the appropriate word(s).
The genus Arthrobacter ________.
A. is a significant component of the microbial flora of soil and plays an important role in the degradation of some herbicides and pesticides B. is a significant component of the microbial flora of soil C. forms heat-resistant endospores D. plays an important role in the degradation of some herbicides and pesticides