A DNA molecule is made up of building blocks known as nucleotides. Each nucleotide consists of deoxyribose, a phosphate group, and one of the chemical bases. The nucleotides join together to form a

, which form the backbone of a DNA strand.

What characteristic of soil is most important in determining water-holding capacity?

Which examples represent abiotic factors affecting biotic factors? Check all that apply. -sediment builds up in a riverbed, slowing the river's speed. -ash from a volcanic eruption kills new plant growth. -a hungry raccoon consumes a freshwater clam.

What is a function if a protein?

Norman thinks that the brain function of students suffers when they receive less sleep. He predicts that students who get less sleep before an exam will receive lower test grades. To investigate his idea, he tests two groups of chemistry students.

The Jones family has eight children, all of whom are girls. What is the chance that the next child will be a boy? Explain.

Which cell breaks down carbohydrates

What characteristic distinguishes the five groups of fungi?

A research colleague has provided you with a single cell to identify. briefly describe the steps you would take to determine which domain this cell would most likely belong to.

A new organism is discovered in the forests of Costa Rica. Scientists there determine that the polypeptide sequence of hemoglobin from the new organism has 72 amino acid differences from humans, 65 differences from a gibbon, 49 differences from a

How can evedince from an experiment be explained in a relationship to the hypothesis