Terrestrial vertebrates and some fish evolved a form of fertilization in which the male gametes are introduced into the female reproductive tract. What is this called?
A. synchronous fertilization
B. external fertilization
C. internal fertilization
D. asexual fertilization
C. internal fertilization
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Species interactions between members of a
community include __________, which is helpful to one species and does not harm the other species. Fill in the blank(s) with the appropriate word(s).
Protist is a diverse group of organisms that are similar in
A) rRNA sequences. B) Metabolic type. C) Motility. D) Ecology. E) None of the above.
Match the stain with it's role in the staining procedure
Malachite Green A) Mordant for Gram Stains B) Mordant for Endospore Stain C) Primary stain for Endospore Stain D) Secondary stain for Acid-Fast stain
Which of the following is not considered a contributor to global warming?
a. carbon dioxide b. chlorofluorocarbons c. nitrous oxide d. ethane e. surface ozone