In which situation would artificial insemination most likely be used over other forms of treatment?

A.
The mucus that helps the sperm travel to the uterus is too thick.
B.
There is a blockage in the fallopian tubes.
C.
A man's testicles have not properly descended, lowering sperm count.
D.
A woman's ovaries do not release any eggs.

Choose the molecule that is described by each phrase. energy used during long activities:

Sampling lake water for microscopic organisms is not as easy as it sounds when you want to both count and identify species. in a given water sample, your bacteria of choice can be rare or difficult to culture, particularly given the mixture of bacteria in a biofilm. which of the following culture media would be best for growing fecal coliforms when they are relatively less abundant than other bacteria in the lake? anaerobic culture medium enrichment culture medium complex culture medium basic culture medium

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna