About 99% of all matter contained in the solar nebula now exist in?

Hospitals are interested in ocean research because; the ocean floor is rich with oil and natural gas, oysters are a valuable source of copper, powerful anesthetics are found in marine organisms, fish are a valuable source of protein

Why is gene regulation necessary in the development of multicellular organisms? Give a specific example to support your answer.

A student uses a string to model four pairs of homologous chromosomes in a parent cells. Each Chromosome pair is a different color.

An organism that does not live in or on another organism is called a

Which are the 3 main types of lipids

A population of lizards that originally had no predators lived on a small isolated island. Predators of the lizards were accidently introduced to the island from a visiting ship.

If there are 50 kcal of energy in the tertiary consumer trophic level, how many kcal would you expect to find in the primary consumer level

The plasma membranes of some plant cells use transport proteins to move protons out of the cell against their concentration gradient (from areas of low proton concentration to areas of high proton concentration). this is an example of:

What is algae? and where is come from?

Are mushrooms biotic or abiotic