What causes changes in the sizes, shapes, and positions of Earth's continents and oceans?

A.

very strong ocean currents

B.

global wind belts

C.

continental drift

D.

tectonic plate motion

What are 7 characteristics of non-living things?

Which is not part of the cell theory? A. All known living things are made up of one or more cells B. Cells can divide C. Cells are the basic units of structure and function of an organism D. All cells come from preexisting cells

Which of these factors decreases the rate of a chemical reaction within cells? A. A co-factor B. Increased substrate C. Increased enzyme D. Cold temperature

Through which material can light waves travel but sound waves cannot travel? Air Metal Vacuum Water

The extra calories for pregnancy are needed mostly during which trimester (s) ?

How does the reproduction rate of bacteria affect the illmness that is cuased by it?

Kristyn is thrilled to hear she is expecting twins. her doctor informs her that the twins are dizygotic. what does this mean?

Chromosome duplication, which happens during mitosis, occurs in the what?

Which is not a characteristic that all living organisms share

A scientist claims plants can communicate with each other in a variety of ways. justify the claim of the scientist and describe the types of responses that result from the communication of two different plants.