How do scientists know that earth's magnetic poles have reversed many times during history

Where on the Human body and Plant does Mitosis occur?

Before organisms with nuclei evolved, life on earth consisted only of unicellular

What is true of an atom's nucleus? It is positively charged and takes up most of the atom's space. It is negatively charged and takes up most of the atom's space. It is positively charged and includes most of the atom's mass.

An organism grows in colonies and is composed of eukaryotic cells, in which domain does this organism belong? a. bacteria b. archaea c. planate d. eukarya

What is the effect of biomagnification on organisms of different trophic levels, especially the tertiary consumers?

What was the neolithic revolution and how did it change life

In two or more complete sentences, compare relative dating and absolute dating of earths materials.

Above 38oC and below 0oC the rate of photosynthesis decreases. Propose a hypothesis to explain why this occurs.

Corn kernels have an outer endosperm and an inner endosperm. A purple outer endosperm is dominant to a colorless (clear) outer endosperm. A yellow inner endosperm is dominant to a white inner endosperm.

What are mitochondria and how do they function?