Which of the following information provides the strongest evidence to support the evolutionary relatedness between fungi and animals?
A. Some fungi and animals have flagella.
B. Molecular data shows a similarity in DNA/RNA base sequences.
C. They both possess a cell wall made of chitin.
D. Both are heterotrophic.
Answer: B
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Select the true statement(s) concerning natural selection.
_____ Natural selection is a way for evolution to occur. _____ Natural selection results in better adapted populations when the environment is constant. _____ Natural selection does not act on individuals. _____ Natural selection is evolution.
Anaphylactic shock can be controlled by an immediate injection of histamine
Indicate whether the statement is true or false.
The goal of eugenics is to
a. selectively engineer and change normal human traits into what some perceive to be more desirable characteristics. b. eliminate genetic disorders. c. produce genetically identical humans. d. eliminate genes for abnormal behavior. e. accomplish all of these
As the size of a cell decreases, the ratio of its surface area to volume:
a. increases b. decreases c. stays the same