In one of her epeditions, a marine biologist finds a new organism that has an unsegmented, radially-symmetrical body with spiny skin. Under witch phylum should she classify this organism

Annelids

Arthropods

Echinoderms

Mollusks

Given f (x) = 5x-2, what is f (-4) ? a. - 40 b. - 22 c. - 1 d. 40

If a scientific experiment repeatedly gives the same results, the experiment is

Fernando has a difficult time due to procrastinating. why should fernando avoid procrastination?

A solution of 100% water: a. What is the direction of water movement

To melt 4 kg of a solid, 106 J of heat is required. Which of the following expressions gives the heat of fusion of the solid?

Which plant division has seeds with a 3n endosperm due to double fertilization?

What is a difference between systemic and pulmonary circulation? A. Systemic circulation carries deoxygenated blood to the lungs and pulmonary circulation carries oxygenated blood to the body. B.

Name the cells that are produced by the testes and ovaries

What description best explains why viruses can become more pathogenic to hosts that were not affected by the virus before?

The chief force pushing water and solutes out of the blood across the filtration membrane is A) the ionic electrochemical gradient B) protein-regulated diffusion C) glomerular hydrostatic pressure D) the size of the pores in the basement membrane of