True or false, the fact that the mountains separate continents appeared to belong to the same chain of mountains was evidence that a long time ago, the continents were together.

What usually results when an organism fails to maintain homeostasis?

In which pH do plants grow best?

Hydrogen ions have a positive charge why

In order to determine whether a cell contains mitochondria, a scientist should: A. prepare a model of the cell. B. observe the cell with a light microscope. C. observe the cell with an electron microscope. D. prepare a culture medium for the cell

Which studies most likely cause controversy in society? Check all that apply. Scientists observe the behavior of a cloned animal. Scientists discover how to create organs with stem cells. Scientists report a new therapy used to treat heart disease.

List three methods used to prevent the evaporator from becoming too cold and freezing

The french biologist lamarck proposed that

A scientist performed an experiment on mice. Her results are posted below. Lung Cancer in Mice Experiment Group Duration of Cigarette Smoke Exposure Number of Cases of Lung Cancer 1 0 days 0 2 500 days 3 3 1,000 days 27 4 1,500 days 32 After

Angiosperms do not need water for fertilization. Why?

After removing a cutting from a parent plant, farmers usually: