Life history patterns:
a. have no genetic component.
b. are subject to the pressures of natural selection.
c. exist only in organisms that exhibit parental care.
Ans: b. are subject to the pressures of natural selection.
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In a food web diagram, ________ species feed on no other species but are fed upon by others
Fill in the blank(s) with correct word
Answer the following questions true (T) or false (F)
1. The pod of a pea plant represents a fruit produced by the plant. 2. The brain is responsible for essentially all homeostasis. 3. The heart is in the thoracic cavity.
Unique chemical groups that confer special properties to an organic molecule are called:
A) amino acids. B) monomers. C) lipids. D) functional groups.
The layer of the eye where photoreceptors are
located is the a. lens. b. cornea. c. pupil. d. iris. e. retina.