The movement of water and dissolved solutes
from the soil to the vascular cylinder is driven
by
a. active transport.
b. osmosis.
c. endocytosis.
d. simple diffusion.
e. more than one of these
B
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Rheumatoid arthritis is caused by____
a. a deficiency of antibodies b. inability to respond to antigenic stimulation c. a virus d. a self-attack on blood cells e. a self-attack on joints
Explain how an oligotrophic lake can become eutrophic
What will be an ideal response?
Clay compounds were thought to be original
sites for the formation of
a. nucleotide strands. b. fat globules. c. short polysaccharides. d. amino acid chains. e. sugar-protein complexes.
Choose the hormone that is NOT correctly matched with the endocrine gland that secretes it.
A. pineal gland-melatonin B. posterior lobe of pituitary gland-oxytocin C. adrenal medulla-cortisol D. adrenal cortex-aldosterone E. pancreas-insulin