Leaching is caused by
a. bacterial action.
b. wind.
c. water.
d. microbial activity.
e. none of these.
C
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Answer the question using the accompanying figure. Which lake zone(s) support(s) detritivores and decomposers, but
not photosynthesizers?
a. A only b. B only c. C only d. A and B e. B and C
What drives the movement of soil water, through a root’s epidermis and cortex, to the vascular cylinder?
a. translocation b. pressure flow c. Casparian strip d. osmosis e. active transport
The hormones that are most directly involved with the process of birth are
a. estrogen and oxytocin. b. oxytocin and prostaglandins. c. oxytocin and progesterone. d. prolactin and estrogen. e. prostaglandin and progesterone.
________ is a means of overcoming the activation energy barrier that depends on quantum effects
Fill in the blank with correct word.