All living things are made of organic compounds which contain the element A) carbon. B) hydrogen. C) oxygen. D) phosphorus.

Which is NOT a negative consequence of acid rain? A) damages plants and trees B) kills fish and amphibians C) gives soil a better pH for growing crops D) chemical weathering of buildings and concrete

Guppies living in a stream have a variety of spot patterns, some of which provide good camouflage against the stones in the streambed and others of which make them stand out against the background, allowing potential mates to see them more easily.

Which organelle is responsible for the synthesis of proteins?

In which of mead's three stages do children not only play roles but also consider several tasks or relationships at the same time?

The membrane in the ear is named for what musical instrument

Sally's estimated energy requirement, based upon her age, height, and weight, is approximately 2000 kcalories per day. What is the maximum number of kcalories per day that she can consume to lose 3 pounds per month. Assume 1 month is 30 days. a.

Which hormone causes the regrowth of the endometrial lining of the uterus? testosterone estrogen GnRH progesterone

78.44 meters to centimeters

Which of these is an example of an endoparasitic relationship? O A. A tapeworm living in an animal's intestine O B. A rabbit eating lettuce in a farmer's garden O C. A tick living in an animal's fur coat O D. A snake eating a mouse in a cornfield

Why is the presence of organic material in the soil important? A) It wards away plant eating organisms. B) It increases plant growth. C) It increases sunlight absorption. D) It increases water absorption.