Why can oxygen diffuse across a cell membrane but a protein cannot?

A) proteins are too large.

B) oxygen is polar.

C) oxygen is a gas.

D) proteins absorb oxygen

Which statement best describes the results of DNA replication A) two identical DNA molecules B) one DNA molecule C) messenger RNA D) two genetically different DNA molecules.

How are human economics and ecology linked

Blood transports and distributes what four substances in our body

Between which latitudes are kelp forests distributed, approximately? Between which latitudes would it be highly unlikely for kelp forests to grow? Explain.

How do plants produce mechanical weathering? A. They break rocks apart through acid wedging. B. They break rocks apart through frost wedging. C. They break rocks apart through root-tip wedging. D. They break rocks apart through stem wedging.

What is the limit on saturated fat intake in grams that you would recommend to your friend, who is consuming 2,500 calories?

Which of the following is a possible water cycle involving humans? a. precipitation (rain), person, wastewater, clouds, precipitation (rain) b. lakes, person, atmosphere, clouds, lakes c.

Prototypes are especially important in the process of

I'm which structure is all the genetic information of an organism found? A) DNA B) gene C) codon D) protein

What does a cell contain?