What are the three most abundant gases in earth's atmosphere?

A. carbon dioxide, nitrogen, oxygen

B. nitrogen, oxygen, argon

C. silicon, oxygen, nitrogen

D. carbon dioxide, oxygen, helium

How would water and oxygen through the alveoli cell membrane differ?

Mutations of the BRCA1 gene in egg cells lead to breast cancer. Somatic Mutation or inherited mutation

Competition is directly related to A. natural disasters. B. reproduction. C. disease. D. human activities

Which type of selection leads to increased phenotypic and genetic variation?

What is the difernt bettwen boys and girls puberty

What's the function of rough er

Milo is observing the things around his family's farm. He writes down four different resources and whether he thinks they are renewable or nonrenewable. The table below shows his notes.

A baby born from a caesarian section (an operation where the baby is removed surgically from the abdomen instead of a vaginal birth) would result in:

What are body waves?

Which of these is NOT considered to be an organic substance? A) carbohydrates Eliminate B) lipids C) metals D) proteins