What does the following diagram illustrate?

Algae → Minnows → Salmon → Bear

A.

a food chain

B. a trophic level

C.

a food web

D.

a food pyramid

Which of these glands secretes releasing hormones? which of these glands secretes releasing hormones? hypothalamus adrenal cortex thymus ovaries testes?

Most animal cells are bathed in an isotonic fluid, such as blood, which protects them from bursting. How does an isotonic solution protect a cell from bursting? A. It is a solution that has no solutes, making it an empty fluid. B.

Why can a lunar eclipse only occur during a full moon

N parkinsonism, the tremors, muscular rigidity, and reduced control over voluntary movements appear to be a function of:

Which part of the brain stem connects with the spinal cord?

In the United States, mothers who live in poverty generally have babies with lower birthweight than those who do not live in poverty. The mean birthweight for babies born in the U. S. to mothers living in poverty is approximately 2800 grams.

Hypothesis on whether radiation has the same impact on coastal, forest, and desert areas

In a family is affected by a genetic disorder the son in the family has the same diseasebut the daughters do not have it

The "sphere" that includes all of the water in, on, or around the Earth is the A. biosphere. B. exosphere. C. geosphere. D. cryosphere. E. atmosphere. F. hydrosphere.

What is the arrangement of phospholipids in the plasma membrane