Biology, 10.10.2019 23:00, chamarabrown9260
Most sperm cells die in the vagina when entering the female's body because most sperm cells die in the vagina when entering the female's body because
- the female's reproductive tract is protected by digestive enzymes.
- the sperm cannot pass through the mucus.
- macrophages from the female's immune system destroy all nonself cells.
- of the low ph of the vagina.
- the sperm cells have not yet been activated to swim.
Answers: 1
Biology, 22.06.2019 10:00, FailingstudentXD
Dna and rna share a number of similarities, but they also differ in certain aspects of their structure. wich nitrogenous base is found in rna but is not found in dna
Answers: 1
Biology, 22.06.2019 14:50, dondre54
Read this summary of a scientific theory: "cells are the most basic structural and functional units of life. all living organisms are made up of one or more cells. all cells that are alive in the world today came from pre-existing cells." which of the following would require this theory to be modified? -a.) a survey finds that a majority of people believe viruses carry out the basic processes of life. -b.) a prominent scientist says she feels strongly that one day the theory will be challenged by life on other planets. -c.) the dna of unicellular and multi-cellular organisms is shown to have many fundamental similarities. -d.) scientific observations show that microscopic organisms living in the deep ocean are not made up of cells.
Answers: 1
Most sperm cells die in the vagina when entering the female's body because most sperm cells die in t...