The ____ is the colored portion of the eye
Fill in the blank(s) with the appropriate word(s).
Ans: iris
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In an agricultural field where pesticides are regularly sprayed, there are always some insects
that survive due to some innate resistance based on their genetic makeup. These are the ones that then reproduce so that in future generations there are more insects/pests that are resistant to the pesticides. Over time, this may give rise to an entire population that is resistant to the pesticide. This is an example of
a. homology. b. natural selection. c. experimentation. d. classification
Boyle’s law of gases helps explain the mechanics of breathing. What does Boyle’s law state?
a. For gases in a closed space, pressure and volume are positively correlated. b. The volume occupied by an ideal gas is directly proportional to the number of molecules present. c. For gases in a closed space, pressure and volume are inversely related. d. The volume occupied by an ideal gas is inversely proportional to the number of molecules present.
Organs in the coelom of an animal are held in place by the
A. muscles. B. bones. C. inner tube. D. mesenteries.
Archaeal cell walls are composed of unbranched phospholipids.
Answer the following statement true (T) or false (F)