Self-fertilization is avoided in sponges because
a. there is no way for sperm to enter the sponge.
b. the sperm do not possess the enzyme needed to penetrate the egg.
c. sperm and eggs are not produced at the same time.
d. none of the above is true; self-fertilization is common in sponges.

Drag each tile to the correct location. match each trait that an organism displays to a reproductive strategy.

19. a cell is viewed under a microscope and is found to have two nuclear envelopes and spindles that appear to be breaking apart. which phase of mitosis is the cell most likely in? a. metaphase b. prophase c. telophase d. anaphase

How does the fermentation of pyruvic acid in cells contribute to the formation of atp? a. it completes the oxidation of glucose to co2, creating atp. b. it generates lactic acid, which cycles back through the krebs cycle, producing 2 atp molecules. c. it converts fadh2 to phosphate, which bonds with adp. d. it produces 2 nad+ molecules, which cycle back to fuel the glycolysis reaction, allowing 2 atp molecules to be produced.