Which one of the following structures is characteristic of BOTH eukaryotic and prokaryotic cells?
A) nucleus
B) mitochondria
C) endoplasmic reticulum
D) cell membrane
E) Golgi apparatus
D
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Answer the question using the accompanying figure. During metamorphosis of a tadpole, 'A' is the ____
a. thyroid b. parathyroid c. hypothalamus
d. adrenal cortex e. posterior pituitary
What two factors are associated with a decline in fast-twitch muscles?
What will be an ideal response?
Water-soluble hormones
a. have to be transported by specific protein carrier molecules in the blood. b. have no trouble entering the target cells. c. find and react with the cell lipid bilayer. d. always elicit the production of a second messenger. e. are the same as lipid soluble.
When does an oocyte complete meiosis II?
A) after fertilization B) immediately after birth C) immediately after release from the ovary D) as soon as puberty begins E) in the seventh month of fetal life