Which of these is not a part of the circulatory system?

1) heart

2) blood

3) arteries

4) femur

Which of the choices below is the salt level-monitoring part of the nephron? a. loop of Henle b. principal cell c. macula densa d. vasa recta

Are coral snakes venomous?

This graph shows the urban and rural populations of the world. Which statements are true about the data in the graph? This graph shows the urban and rural populations of the world. Which statements are true about the data in the graph?

Two similar species of fish live in the same lake. A biologist observes that one fish population is much larger than the other. The biologist believes that the difference is due to better protective coloration in the larger population.

Which of the following statements is most accurate? A. When liquid water is heated, the molecules move faster. B. When liquid water is heated, the molecules collide more often. C.

What is earth made up of?

A client with stage ii ovarian cancer undergoes a total abdominal hysterectomy and bilateral salpingo-oophorectomy with tumor resection, omentectomy, appendectomy, and lymphadenectomy.

Which of the following is a potential response by a plant host to a parasite? increased production of lymphocytes allelopathy more rapid growth of tissues formation of a gall

What is it called when you interpret the things you observe

Rubidium-87 has a half-life of 48.1 billion years. After how many years is there 25 percent parent isotope and 75 percent daughter isotope contained in the object?