Which of these best describes the material inside Earth's mantle? Remains stationary Moves in a circular motion Rises up but does not sink down Sinks down but does not rise up

The invention of agriculture a. led to an increased birth rate and death rate. b. provided a more dependable food supply. c. allowed people to settle down in villages. d. all of the above

The concentration of na within a cell is required to be __ than the external concentration.

Hypothesis for does compost cause plants to grow faster and taller than artificial fertilizer

What is the name for the stage where stars spend majority of their lives

Which organisms are not examples of an adaptive radiation?

Where can you find carbon inside an organism?

How did the grants test their hypothesis that differences in birds' songs can keep different species of finches from breeding with one another? how di

Which occurs during digestion? The mouth only allows for physical digestion. The mouth only allows for chemical digestion. Chemical digestion prepares the food for physical digestion. Physical digestion prepares the food for chemical digestion.

What would provide the body with the most energy? A. breaking a double carbon bond B. creating bonds to form a nucleic acid C. forming bond between lipids D. breaking the bonds in a polysaccharide

What type of electromagnetic wave is used in security pens?