Which causes a drop in female hormone levels?

the onset of the menstrual flow

if an egg is released from the ovary

if the uterine wall thickens

if the egg is not fertilized

What was one characteristic of a New England colonial town? A. most work was done by slaves B. The town common was a crowded space where farmers could sell their produce C. The community was self-sufficient D.

Elaborate about Parkinsons and alzheimers disease.

Parrotfish are herbivores that are found in coral reefs. To escape predation, a parrotfish will graze with a rabbitfish, which has venomous spines at the end of its pelvic fins. The rabbitfish does not benefit from this relationship.

Where is the least amount of energy transferred in a food web

What is the name of a characteristic such as eye color of an organism?

What happens when oxygen atoms share electrons A) They form covalent bonds B) They form ionic bonds C) They form polar molecules D) They form water molecules

What five areas of the brain are wired during infancy?

Diferentiate between embryonic stem cells and adult stem cells. In what way are the ethical dilemmas associated with the use of embryonic stem cells different than those posed by the use of adult stem cells?

A measure of the amount of body fat a person has as compared to muscle and bone is known as

An alarm clock ringing is an example of a: A) involuntary muscle B) response C) neuron