Which one of the following is NOT a component of each monomer used to make proteins?

A) a phosphorus atom, P

B) an amino functional group, NH2

C) a side chain, R

D) a carboxyl group, COOH

Which of the following have contributed to historical increases in the global human population? unavailability of clean water decreases in the birth rate advances in hygiene increases in the number of deaths

An organism will survive if it is adapted to its environment. What is the name for this process? O O A. Natural selection B. Extinction O C. Disturbance O D. Predation

What are the three levels of diversity of pollution?

Where is the shipping and receiving center in a eukaryotic cell?

Which of the following can tell can you that a tiger and a lion are different species? They have different colors. They can mate. Their offspring are infertile. They are both carnivores.

When the dna ladder twists the way it normally does the shape of the molecule is called a

The volcanoes on Mars resemble ___ on Earth.

A mother that carries the colorblind allele and a father with normal vision can have children that are only

Purpose of grinding the liver tissues

Why do organisms do meiosis