You know sperm cells swim their way to an egg cell—but with no brains, Lucky for you, we've found answers to nine big questions about the.
Related to sperm quality is sperm size, at least in some animals. The benefit to females is that only healthy males carry 'good'.
A spermatozoon is a motile sperm cell, or moving form of the haploid cell that is the male .. "Large-male advantages associated with costs of sperm production in Drosophila hydei, a species with giant sperm". Proceedings of the National.
These genes come from the male's sperm and the female's egg. that causes boys to develop deeper voices, bigger muscles, and body and facial hair.
In the animal kingdom, sperm usually are considerably smaller than eggs, which means that males can produce far more of them. Large.