Which of these neurotransmitters, released by neurons of the sympathetic nervous system, helps prepare the body for energetic activity?
A) Serotonin
B) Acetylcholine
C) Endorphin
D) Dopamine
E) Norepinephrine
E
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Patterns of behavior that are species specific and highly repeatable are called displays and are an example of a ____ pattern
Fill in the blank with the appropriate word.
Research by Malte Andersson suggests the long tail feathers of male African widowbirds are a product of ____
selection because females are more strongly attracted to males with long tails than to males with short tails.
a. disruptive b. intersexual c. intrasexual d. artificial e. stabilizing
Plasma cells
A. secrete antibodies. B. function in allergic reactions. C. suppress immune reactions. D. activate B cells and other T cells. E. directly destroy target cells.
Normal fruit flies have red eyes. Flies with mutations that block the function of the X-linked white gene have white eyes. The wild-type allele is completely dominant to mutant alleles. A white-eyed female fruit fly is mated to a red-eyed male. One of their hundreds of female progeny is white-eyed. This white-eyed daughter likely arose from nondisjunction of the sex chromosomes during ________ in the ________.
A) meiosis I; mother B) meiosis II; mother C) meiosis I; father D) meiosis II; father E) meiosis I or II; mother