What stage of embryonic development implants in the lining of the uterus?

A. blastocyst
B. zygote
C. morula
D. coelom


Answer: A

Biology & Microbiology

You might also like to view...

The portion of the flower containing pollen grains is

(a) the pollen sac. (b) the microsporangium. (c) the anther. (d) all of the above.

Biology & Microbiology

What process occurs in both the aerobic and anaerobic pathways?

a. glycolysis b. Krebs cycle c. electron transport chain d. fermentation e. anaerobic processes

Biology & Microbiology

What are nematocysts?

a. reproductive cells b. excretory organs c. sets of muscle cells

d. circulatory cells e. defensive cells

Biology & Microbiology

Which current carries warm water northward in the western Atlantic ocean?

1.Canary current 2.Caribbean current 3.Gulf Stream 4.North Atlantic current

Biology & Microbiology