Which developmental event occurs last?

a. tissue specialization and growth
b. gamete formation
c. gastrulation
d. cleavage
e. fertilization


a

Biology & Microbiology

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Xanthophyll pigments __________

A. prevent formation of reactive oxygen species B. absorb light energy C. convert light energy into heat D. reflect yellow light E. All answer options are correct.

Biology & Microbiology

Which of the following is an example of the

result of a beneficial mutation?

a. A new digestive enzyme that is better at digesting cellulose. b. A new digestive enzyme that is equal in its ability to digest cellulose as the existing enzyme. c. A new digestive enzyme that is less effective at digesting cellulose. d. A new protein that interferes with the digestive process. e. A new protein that has no function

Biology & Microbiology

Which of the following anemias is associated with premature red blood cell death?

a. aplastic b. megaloblastic anemia c. hemolytic anemia d. pernicious e. iron-deficiency anemia

Biology & Microbiology

Drosophila developmental mutants of __________ genes produce larvae with mirror image segments

a. gap b. pair-rule c. segmentation d. paternal effect e. segment polarity

Biology & Microbiology