All organic molecules have what element in common? a carbon b nitrogen c phosphorus d sulfur

What was the independent variable in Francesco Redi's experimental setup? A. raw meat B. the jars C. the maggots D the jar covers

What are two ways rock layers can change after they are deposited horizontally?

Suppose a woman lives in an area where smog levels are very high. Could breathing the air affect the genes of her future offspring? Explain.

What is the relationship between biodiversity and the availability of different types of food?

What type of evaluation measures the immediate effects of the program on participants' knowledge, attitudes, and behaviors? a. Impact b. Summative c. Formative d. Program

Animal lays eggs with a tough leathery watertight shell

Why is DNA antiparallel? It has double strands complementing each other. The bases in one strand pair with the other bases in the complementary strand. It has a ladder shape. Its double strands run in opposite directions.

Which of these is a solution, where the solute and solvent are in the gas phase? A) air B) ozone C) brass D) carbon dioxide

The roads in northern states (like Michigan) need to be repaired more often than roads in southern states (like South Carolina). Explain the effects mechanical weathering could have on this?

A substance that form hydrogen ions when dissolved in water is called a?