What is the connection between skin sunlight and vitamin d?

Which of the following is an example of mutualism?

Desertification is caused by temperature variations human activity solar heating patterns leaching of the soil

Charges are picked up and left in different places everywhere around you specially, you cannot create or destroy charges; just move them what is this phenomena called?

A typical prokaryotic cell has about 3,000 genes in its DNA, while a human cell has about 25000. Approximately 1000 of these genes are present in both cell types.

Some types of algae live inside coral. The algae provide the coral with nutrients. The coral provides the algae with shelter. Which of the following relationships exist between the algae and coral? A. a parasite-host relationship B.

Predatory fish that swim in the water column, usually have what kind of coloration? disruptive counter shading cryptic fusiform

The healthcare provider makes the diagnosis of transient ischemic attacks (tias). the client asks the nurse, "what causes tias?

What are the three stages of the cell cycle?

The unpaired cartilage of the larynx that is made of elastic cartilage and bends when you swallow is called the

Five disease of the kidney