What instrument needed to be developed before cells could be discovered?

In stars that are near death, What can no longer contain fusion? A) Electromagnetic Attraction B) Strong Forces C) Gravity D) Planets

Is food an abiotic factor

When bacteria are spread from one foods to another this is called

Atomic theory describe: A. the parts that make up an atom. B. why a microscope make something look bigger. C. how to make a solution from two liquids. D. how to calculate the speed of light.

What was wegeners theory of plate tectonics based on?

Primary differences between archaic homo sapiens and modern homo sapiens is

What would be the consequence of of absence of tRNA in the cytoplasm?

Water which is returned to the environment after secondary treatment is known as:

Which tool is best used to predict the outcome of various genetic combinations?

What part of the brain consists of two large hemispheres?