What's the difference between unicellular bacterium and unicellular eukaryotes

How does the cell membrane control what comes in and out of the cell?

What is a secondary consumer?

Which characteristic makes nine amino acids "essential"? All structural proteins are made from them. They are not found in nature. The body cannot make them. All enzymes are made from them.

Do back dimples mean your good in bed?

Michelle is observing a sand sample under a microscope when she finds many perforated shelled organisms. Further testing reveals that these shells are made of calcium carbonate. How should she classify these organisms? A.

How would you expect the attenuation of light (like with increased turbidity) to influence net productivity? Why?

Does the heart shape plant contain the same genetic information as the leafy fern plant

In general where does erosion occur?

During what process does segregation occur?

What is the diffrence between working in a field or laboratory