Birth control pills are a popular form of contraception for women. how do birth control pills prevent pregnancy? a. by covering the cervix and blocking sperm from entering the uterus b. by blocking the fallopian tubes and keeping the eggs from reaching the uterus c. by introducing female hormones that prevent the ovaries from releasing eggs

How did the research presented in the article affect scientists' understanding of the evolution of eukaryotes

Jane is blood type a her husband is blood type b. jane is puzzled because their daughter is type o. explain how the daughter inherited a blood type that neither of her parents had explain your answer

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat