An embryo develops from the
a. blastomere.
b. gastrula.
c. syncytiotrophoblast.
d. trophoblast.
e. inner cell mass.
E
Biology & Microbiology
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A change in the rate or frequency of movements in response to environmental stimuli is called taxis
a. True b. False
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The production of sterile male ligers is an example of __________.
A. A post-zygtic barrier B. The founder effect C. A pre-zygotic barrier D.. Sympatric speciation
Biology & Microbiology
Unsaturated and polyunsaturated fats __________(increase/decrease) the amount of good cholesterol in arteries (HDL) in blood.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology