Many chemicals are used to kill insects and protect animals. How could the removal of insects upset the balance of the ecosystem?

How do you know if a patient is experiencing a true emergency?

Which of the following types of mass movement occurs along a curved surface? A. Landslide B. Creep C. Mudflow D. Slump

Which foods would not make a complement of 20 amino acids, to make a complete protein? a. Corn and beans b. Brown rice and peas c. Peanut butter and white bread d. Yogurt and walnuts

What happens to ideas in science? A. they do not often influence the way people live their lives. B. they become theories that no one is allowed to question. C. they get modified or replaced as new ones are developed. D.

Explain why fertilizer use by farmers can have negative effects on aquatic ecosystems?

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

From day 23 to 28 the progesterone levels are dropping. What effect will this eventually have on the endometrium?

When both muscles of this pair are contracted simultaneously, they flex the neck forward. When both muscles of this pair are contracted simultaneously, they flex the neck forward. a. platysma b. semispinalis c. sternocleidomastoid d. trapezius