Chronic stress:a
is associated with elevated levels of glucocorticoids.
b. may lead to the excessive stimulation of neurons.
c. increases blood flow to the brain, especially the hippocampus.
d. results in lower levels of epinephrine and norepinephrine.
e. promotes the linear growth of the skeleton
A
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Callose has what effect on pollen?
A. aids differentiation and attachment of pollen to the carpel B. aids pollen development and helps pollen tubes to grow C. aids pollen coat development D. aids pollen coloration E. aids the separation of pollen grains from the anther
Decreases in CO2 concentration result in ____
a. faster breathing b. deeper breathing c. faster and deeper breathing d. slower and more shallow breathing e. slower breathing
The _____ of a solution takes into account ALL of the solutes in the solution
Fill in the blank(s) with the appropriate word(s).
In order to control for abiotic processes in isotopic transformations, it is essential to include a
a. positive control. b. negative control. c. live cell control. d. killed cell control.