Which of the following is responsible for the actual invasion of the lining of the uterus?

a. trophoblast
b. amnion
c. inner cell mass
d. blastocyst
e. placenta


D

Biology & Microbiology

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How big are most cells?

a. 10-20 nanometers b. 10-20 micrometers c. 10-20 millimeters d. 10-20 centimeters e. 10-20 meters

Biology & Microbiology

____ discovered the basis for the ____ rule, which states that the amounts of adenine and thymine are identical, as are

the amounts of cytosine and guanine.

a. Avery; base-pair b. Griffith, double helix c. Chargaff; base-pair d. Chase; double helix e. Pauling; base-pair

Biology & Microbiology

Sister chromatids are separated from each other

during a. metaphase I. b. anaphase I. c. telophase II. d. anaphase II. e. metaphase II.

Biology & Microbiology

The most common forms of color blindness result in the inability to properly perceive the colors

____________________ and ____________________. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology