Which behavior is an example of a fixed action pattern?
A) the imprinting of baby goslings on their mother
B) habituation in the cnidarian Hydra
C) the way female digger wasps find their nests
D) the way a greylag goose retrieves an egg that has rolled out of the nest
Answer: D
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The first stable intermediate produced in the Krebs cycle is
a. pyruvate b. acetyl CoA c. fructose bisphosphate d. oxaloacetate e. citrate
Carnivores are indicated by
a. A. b. B. c. C. d. D. e. E
Adaptations that can be passed from generation to generation can lead to __________ of a population of a species.
Fill in the blank(s) with the appropriate word(s).
A pathogen is a disease-causing organism, but not all pathogens are alike. Some pathogens are more dangerous than others. When describing the relative ability of a pathogen to cause disease, we are considering its ________
A) emergence B) infectivity C) virulence D) pathogenicity