Which of the following examples results from disruptive selection?
A) The birth weight at which newborn humans are most likely to survive and the average weight of newborn humans are about the same.
B) There is an increase in antibiotic-resistant strains of bacteria.
C) There is an increase in the number of different breeds of dog.
D) Garter snakes with different coloration patterns behave differently when threatened.
D
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Approximately, what percent of flowering
plants have animal pollinators?
a. 50 b. 60 c. 70 d. 80 e. 90
In biology, an adaptation is defined as _____.
A. a heritable trait that increases the fitness of an individual in a particular environment B. a change in an individual's behavior in response to changes in environmental conditions C. a change in an individual's DNA sequence D. a change in an individual's body in response to changes in environmental conditions
If a cell has a normal osmotic pressure of 4500 mmHg and is placed into a solution with an osmotic pressure of 3500 mmHg, what will happen to the cell?
A. The cell will lose water and its osmotic pressure will increase. B. The cell will gain water and its osmotic pressure will decrease. C. The cell will lose water and its osmotic pressure will decrease. D. The cell will gain water and its osmotic pressure will increase.
________ can be thought of as not responding to a stimulus.
Fill in the blank(s) with the appropriate word(s).