Besides sodium and potassium, what other cations are actively transported across all cell membranes?

A. Chloride and magnesium

B. Iron and chloride

C. Calcium and magnesium

D. Calcium and iron

What is the position of herbivores in the ecosystem? a. primary consumer b. primary producer c. secondary consumer d. secondary producer

what type of transport takes place when a protein allows an on to enter a cell, but no additional energy is needed to make this happen

Introns represent a genome scrap yard that provides DNA segments for genome evolution and a variety of small RNA molecules. Select one: True False

What is the difference between expected effects and unexpected effects of technology

Where in a globular protein is the amino acid glycine likely to be located?

Why is it rare for the soft part of an organism to become a fossil?

The greeks studied charges using what material

Identify the true statements below. The reaction of the burning candle occurs at a faster rate than an exploding firework. The reaction of an exploding firework occurs at a faster rate than a burning candle.

What is the relationship between gene expression and cell specialization?

Huntington/'s disease is an inherited autosomal dominant disorder that can affect both men and women. imagine a couple has had seven children, and later in life, the husband develops huntington/'s disease.