Before zygotic genes become active, the stages of animal development are directed by the ____

a. environment
b. cytoplasmic determinants of the egg
c. cytoplasmic determinants of the sperm
d. cytoplasmic determinants of the egg and the sperm


e. zygote nucleus


ANSWER: b

Biology & Microbiology

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Features that contributed to success on land include a(n) __________ and __________ that minimize water loss. Fill in the blank(s) with the appropriate word(s)

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Iodine is the decolorizer in the Gram stain.

Answer the following statement true (T) or false (F)

Biology & Microbiology