An ion is an atom that shares electrons with other atoms. true or false

Energy is the ability to do work or cause A events B change c friction D explosions

Socialist economies include aspects of both command and free-enterprise systems, O True O False

Which of these changes to a modern lifestyle would promote the development of more-sustainable practices in the world food system a. eating more processed foods b. buying fresh fruit year-round c. switching from beef to soy d.

You are looking at a structure in the respiratory tract that is filled with small sacs or air pockets. What structure are you looking at?

What is the second strongest bone in the body

Friction between a skateboard wheel and the surface produces?

What are two functions of the cell membrane

Why can eukaryotes carry out more specialized functions than prokaryotes can? A) eukaryotes have more organelles B) Prokaryotes have more organelles C) eukaryotes are bigger D) prokaryotes are bigger

How might mendel's conclusions have differed if he had studied two traits determined by alleles carried on the same chromosome?

A healthy immune system depends on an adequate supply of proteins that bind to and neutralize harmful invaders. what are these proteins known as?