Observation vs. inference?

How are the seas enriched by the deserts?

Given that the cytoplasmic membrane has a fluid dynamic nature, with phospholipids and proteins able to move about within the bilayer structure, what force or structure keeps the membrane from falling apart?

Which of the following is not released by trees into the atmosphere?

The highest mountains in the world are found in the ocean. True False

How can you yell if something is living when you are looking at it through a microscope

Which would provide the body with the most energy? A. Creating bonds to form a carbohydrate B. Breaking a single carbon bond C. Breaking the bonds in a monosaccharide D. Forming bonds between two amino acids

Today's beverage pasteurization processes are the result of this scientist's work.

Why are scientific theories changed but never thrown away?

What would have happen to an animal if all of its mitochondria disappeared?

Microevolution can be monitored by observing: select one: a. chromosome structure b. dna sequence c. protein sequence d. all of the above