What would be a reasonable conclusion about a country with a fertility rate of about 1.6?
A) The population is likely to shrink.
B) The population will grow at a yearly rate of 1.6 percent.
C) It must be a relatively young population.
D) Zero population growth will occur.
Answer: A
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a. chlorophyll. b. xanthophyll. c. anthocyanin. d. phytochrome. e. phytoerythrin.
The brief length of time when mammals and birds learn the appearance of a parent is called:a
imprinting. b. habituation. c. classical conditioning. d. operant conditioning. e. insight learning.
Altering the three-dimensional structure of an enzyme might
A. prevent the substrate from binding the enzyme's active site. B. change the type of product produced in the reaction. C. change the amount of energy needed for a reaction. D. prevent the enzyme from adding energy to a reaction. E. change the type of substrate that binds the enzyme's active site.
The Casparian strip prevents water from diffusing through the ____
a. epidermis b. vascular tissue c. cortex d. cytoplasm of endodermal cells e. endodermal cell walls