The peripheral nervous system in a vertebrate can be divided into
A. the brain and spinal cord.
B. the sympathetic and parasympathetic systems.
C. the central nervous and sensory systems.
D. the somatic and autonomic systems.
E. muscles and glands.
D. the somatic and autonomic systems.
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Proteins that bind to acetylated lysine residues in the histone tail contain:
A. bromodomains. B. DNA-binding domains. C. chromodomains. D. kinase domains. E. histone-fold motifs.
Because it has no aquaporins, water is generally trapped in the ____ in mammals
a. distal convoluted tubule b. Bowman's capsule c. descending segment of the loop of Henle d. proximal convoluted tubule e. ascending segment of the loop of Henle
The phenotype expressed by a single genotype can be affected by environmental conditions
Indicate whether the statement is true or false
Which of the following statements is TRUE?
A) The style, which is vase-shaped, contains the ovary, stigma, and anther. B) When mature, the carpel will become the seed and the anther will become the fruit. C) When mature, the ovules will become seeds and the ovary will develop into a fruit. D) The filament and anther enclose the stigma and style. E) When mature, the stamen will become the seed and the stigma will become the fruit.