As early as the ________ month, as the brain and spinal cord grow, the fetus can demonstrate movement and respond to stimuli

A) fourth B) third C) second D) sixth E) fifth


B

Biology & Microbiology

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The phospholipids of plasma membranes have

a. a hydrophobic head and a hydrophilic tail. b. a hydrophobic head and a hydrophobic tail. c. a hydrophobic head and two hydrophobic tails. d. a hydrophilic head and two hydrophobic tails. e. a hydrophilic head and two hydrophilic tails.

Biology & Microbiology

Paired homologous chromosomes are found at

the spindle equator during a. metaphase I. b. telophase I. c. prophase II. d. metaphase II. e. anaphase II.

Biology & Microbiology

Which of the following are found in the nucleus?

a. plastids b. vacuoles c. vesicles d. nucleoli e. microbodies

Biology & Microbiology

Which of the following is a behavioral response to environmental variability?

A) migrating to a different location B) acclimation C) endothermy D) "flagging" by trees

Biology & Microbiology