The sporophyte generation of a plant is and produces spores.
A. multicellular; diploid
B. diploid; haploid
C. haploid; diploid
D. triploid; haploid
E. triploid; diploid
B. diploid; haploid
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Further evolution of the protostomes changed the coelom by
(a) losing it. (b) reducing it. (c) it becoming a pseudocoel. (d) all of the above.
A protein that guides the folding of a polypeptide into a functional, three-dimensional shape, converting the polypeptide into a protein is called a(n) ____________________
Fill in the blank(s) with correct word
Glial cells function to
a. conduct electrical impulses. b. support and nourish neurons. c. secrete collagen fibers into the extracellular matrix. d. release secretions on to a free surface. e. move ions across the cell membrane.
A plant is exposed to a toxin that blocks ABA receptor sites in the plasma membrane. What is the likely consequence of this exposure?
A. The guard cells will become flaccid and gas exchange will cease. B. ABA will enter the cells by an alternative route and normal function will be restored. C. Gibberellin production will increase, allowing the plant to access more nutrients in the soil. D. The plant will lose excess water through transpiration and suffer dehydration. E. Oxygen deprivation will trigger the release of ethylene, which will in turn suppress root growth.