Why is it important to have a slow block to polyspermy?
A. The fast block doesn't work well.
B. The slow block creates a permanent barrier.
C. The fast block is actually slower than the slow block.
D. It prohibits the acrosomal reaction.
E. All of the choices are correct.
B. The slow block creates a permanent barrier.
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If Hani has type A blood and his mother has type B blood, which of the following is the most likely genotype of Hani's father?
A) IBIB B) IBi C) ii D) IAIA
All vertebrates except ____ have a two-circuit circulatory system.
A. fish B. mammals C. birds D. amphibians E. reptiles
Skeletal muscle cells are not typical cells because ____.
A. groups of them fuse in the embryo to form multinucleated fibers B. they are smooth C. they are hydrostatic D. they do not respond to stimuli E. they operate independently from all other body systems
During aerobic cellular respiration, glucose is oxidized to ___ and ___
Fill in the blank(s) with the appropriate word(s).