Do all organisms in the food web need the suns energy to survive

If a dna strand has a cytosine, which nitrogen base will pair

A scientist that is determining ya on based on genetic similarities is relying on

A species of mice can have long or short tails. if you crossed a male mouse which is heterozygous and has a long tail with a female mouse with a short tail, what would the expected phenotypic outcome be and why?

Oxygen is carried by the blood stream to the cells if there is more oxygen in the blood coming from the lungs, and less in the body's cell what cellar process will move the oxygen into the body cell

If a strand of DNA has 35% Thymine. What is the percentage of Cytosine, Adenine, Guanine?

What is one of the most important factors in determining whether a chemical reaction will occur?

What is a alleles in biology?

Sex-linked traits are found on which chromosome?

Most scientists recommend reducing carbon dioxide emissions. Less carbon dioxide in the atmosphere would be expected to

What effect on the evolution of mammals was caused when the continents drifted apart?