What type of rock formed the first continent

Which statement best explains why the overall charge on an atom is zero? The positive charge of the neutrons in the nucleus equals the negative charge in the electron cloud.

A section of forest in Costa Rica was a victim of deforestation. Given the information about the organisms above, which scenario is most likely to occur?

In DNA, four forms of this molecule each have a different type of

What effects do pioneer species have on an environment undergoing primary succession? Give an example of a pioneer species.

Which of the following is not resistant bacterial growth a-jam b-salt c-pickles d-mayonnaise?

What is a word for when two plates coming together?

What is another name for Epithelial membranes?

Why do biologists consider kingdom protista the misfits?

All living things use nitrogen to A) reproduce. B) make sugar. C) make proteins. D) transport water.

Heterogeneous mixture is one that is not Uniform throughout Easily mixed together Made of two or more liquids Edible by humans