Which biological molecule contains a large amount of the element nitrogen?

Which is not an effect of chemical reactions in the cells of living organisms? A. Energy is being stored and released. B. Molecules are continually being rearranged. C. Electrons are constantly being shared and transferred. D.

Transport of materials into a cell against a concentration gradient

What is the relationship tween genes and chromosomes a. Chromosomes contain one or more genes b. Genes contain one or more chromosomes c. Chromosomes use DNA code to manufacture genes d. Genes use DNA code to manufacture proteins for chromosomes

What dose selectively permeable mean

One way for a family to determine their energy use is by analyzing their electric bill each month. Most energy bills include a graph displaying energy use over the last 12 months.

Scientists realized each person's DNA is different in 1985. True or False

In horses, the allele for a black coat (B) is dominant over the allele for a brown coat (b). A cross between a black horse and a brown horse produces a brown foal. Is the black horse a homozygous or heterozygous for coat color? BB x bb or Bb x bb

Name the three stages of cellular respiration

Which structure of the respitory system allows for gas exchange

What does not depend on the population size of organisms living in an area