In mammals there are enzymes located in the acrosome that enables a sperm to tunnel its way through the...
A. blastula to the egg's plasma membrane
B. zona pellucida to the egg's plasma membrane
C. archenteron to the egg's plasma membrane
D. chorion to the egg's plasma membrane.
Ans: B. zona pellucida to the egg's plasma membrane
You might also like to view...
Compared to other muscle tissues, cardiac muscle has more ________ but less ________
a. glycogen / ATP b. adipose tissue / ATP c. nuclei per cell / striations d. mitochondria / glycogen
What are the differences between dysploidy and polyploidy?
What will be an ideal response?
Mendel’s dihybrid crosses provided indirect
evidence for all but which one of the following? a. independent assortment b. dominance c. linkage d. presence of two factors in parents and offspring e. segregation of factors
An energy pyramid illustrates ____.
A. the first law of thermodynamics B. the diminishing of usable energy as it is transferred through an ecosystem C. that energy can be recycled D. the biological magnification of materials in an ecosystem E. the diminishing number of organisms at each trophic level