As opposed to external fertilization, internal fertilization ensures that
a. all of the sperm will fertilize eggs.
b. sperm and egg will be released simultaneously.
c. the number of sperm and eggs produced will be equal.
d. only the fittest of sperm and egg combinations will survive.
e. sperm will be protected until they can unite with the eggs.

Which of the following is true of microbes? a. ninety-nine percent of all microbes are pathogenic.b. gene expression in bacteria is very similar to gene expression in humans, which facilitates the use of bacteria in recombinant biotechnology and gene therapy.c. all bacterial enzymes are harmful to humans and the environment.d. microbes create pollutants and toxins that harm the environment.

Researchers want to use edna to look for an invasive species in the water which of the steps would be likely do last

What is a sex-linked genetic disorder that disrupts the blood's ability to clot? a.achondroplasia b.huntington's disease c.hemophilia d.albinism