The oldest rocks are on the bottom and the rocks become progressively younger toward the top. explain why this is the case?

What role does skin play in the excretory system? A. secretes excess water as sweat B. protects against pathogens C. absorbs water through osmosis D. facilitates gas exchange

Why do prokaryotes reproduce faster than eukaryotes?

What refers to the number of particles of a substance per unit of volume?

You are interested in studying a gene called CFTR because mutations in this gene in humans cause cystic fibrosis. You have made a line of mice that lack the mouse CFTR gene.

Sal has increased levels of the neurotransmitter dopamine in his frontal lobe areas. which disorder might he be at risk of experiencing?

The process by which the information contained in RNA is used to build a protein is called replication. synthesis. translation. transcription.

Seedless bananas were probably first caused by a blank

TMV destroys chloroplast in a leaf explain how this could affect the growth of the plant

A scientific name has to refer to what

The changes in the surrounding environment can have an effect on plants too for a few weeks on the autumn season normally green leaves of deciduous plants acquire a red to yellow color how and why does this change in color happen?