Which antibodies are secreted when an allergic person is exposed to an allergen?

a. IgA
b. IgD
c. IgE
d. IgG
e. IgM


C

Biology & Microbiology

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What is the best definition of learning?

a. A conditioned response to a repetitive stimulus b. A long-term change in behavior due to experience c. A trial and error response to negative feedback d. The ability to ignore unwanted or irrelevant stimuli e. Communication with another member of a society for mutual benefit

Biology & Microbiology

Suppose that an organism has the same life strategy as a maple tree. When will the synaptonemal complex be observed?

a. only in a unicellular haploid phase b. in each generation c. only in a multicellular haploid phase d. only in alternating generations

Biology & Microbiology

All of the following animals are likely to undergo parthenogenesis EXCEPT

A. lizards. B. insects. C. humans. D. flatworms. E. fish.

Biology & Microbiology

Which hormone is secreted by the pancreas to lower high blood glucose levels?

A. adrenaline B. insulin C. glycogen D. glucagon E. antidiruetic hormone

Biology & Microbiology