Sperm are much smaller than eggs. Why?
A. Sperm contain only half the DNA of an egg.
B. Sperm are small to avoid being recognized by the female's immune system.
C. Sperm need only provide DNA; whereas eggs must provide cytoplasm, proteins, and mitochondria for the embryo.
D. Smaller sperm were selected because they could swim faster and reach the egg first.
E. Sperm seem smaller because they are long and thin, but they actually con
Answer: C. Sperm need only provide DNA; whereas eggs must provide cytoplasm, proteins, and mitochondria for the embryo.
You might also like to view...
If a living plant cell is placed in a beaker with a solution that has a ? value lower than the ? value of the plant cell, the
plant cell will ____.
a. take up water until it bursts b. lose water until its ? = ? of the solution c. take up water until within the cell ?P = ??S
d. take up water until its ? = ?S of the solution e. lose water until its ?S = its ?P
The digestion of starches begins in which structure of the digestive tract?
a. esophagus b. large intestine c. mouth d. small intestine e. stomach
The combustion of fossil fuels, such as coal, oil, and gas, have contributed to the steady increase in atmosphere CO2 gas over the last 25 years.
Answer the following statement true (T) or false (F)
Freezing food and then using a vacuum to draw off the ice crystals is called (dehydration/lyophilization/sublimation)
What will be an ideal response?