Male pipefish rear fertilized eggs in a specialized brood pouch. A study has shown that males will selectively abort female eggs based on female quality. Which of the following is the most likely explanation for this behavior?
a. Male pipefish invest more resources into the production of sperm than fe-male pipefish invest into the production of eggs.
b. Certain eggs can endanger a male's survival, so it is not sexual but viability selection.
c. Brood care is costly for males.
d. A recent population bottleneck caused this maladaptive behavior to reach a high population frequency by chance.
C
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Enteric bacteria such as Salmonella spp., Shigella spp., and Escherichia spp. most often contaminate and spoil
A) meat. B) fruits. C) grains. D) milk and milk products.
Inheritance
a. is the process by which genetic information is transmitted to offspring. b. occurs only in animals. c. is a process by which proteins are transmitted to offspring. d. is not a biological process. e. is the process by which genetic information is transmitted to offspring and occurs only in animals
Which of the following reasons helped make Mendel successful with his genetic experiments?
a. he had a strong background in mathematics b. he was very deliberate and followed the scientific method closely while doing his research c. he kept very detailed records of his research d. he was basing his research off of preexisting research e. all are reasons Mendel was successful with his genetic experiment
Which of the following processes produces the most ATP per molecule of glucose oxidized?
A) All produce approximately the same amount of ATP per molecule of glucose. B) anaerobic respiration C) lactic acid fermentation D) aerobic respiration E) alcoholic fermentation