Which of the following activates the egg?
A. Fusion of sperm and egg membranes
B. Fusion of sperm and egg nuclei
C. Contact of sperm with the outside of the zona pellucida
D. Entrance of sperm into the zona pellucida
E. Contact of sperm with the vitelline envelope
Answer: A
Biology & Microbiology
You might also like to view...
A soil with approximately what percent of humus
is best for plant growth? a. greater than 90 b. 15 c. 50 d. less than 10 e. 30
Biology & Microbiology
A scale used to indicate the strength of an acid or base is called a ____ scale.
A. thermodynamic B. aquatic C. pH D. reduction
Biology & Microbiology
The first known member of the genus, Homo,
a. H. erectus.
b. H. sapiens.
c. H. neanderthalensis.
d. H. habilis.
e. H. floresiensis
Biology & Microbiology
A phage is a virus that infects
A) bacteria. B) plants. C) animals. D) humans.
Biology & Microbiology