What molecule is represented by the molecular model shown below The molecule is made up of adenine, a five-carbon sugar called ribose, and a chain of three phosphate groups.

What two systems are responsible for controlling body activities? What structures allow them to do so

What are the functional groups of carbohydrates, lipids, proteins, and nucleic acids.

Based on the graphics on the opposite page, which three elements make up this compound?

How does th melting of ice caps near the North Pole affect the salinity of the ocean

Some biological hazards (such as bacteria, viruses, parasites, and fungi) are undetectable by sight, smell or taste and can potentially cause an illness. What are these biological hazards called?

Which macromolecule includes steroids? a. lipids b. proteins c. carbohydrates d. nucleic acids?

The diploid cell created by the joining of conifer sex cells produces a (n): a. Zygote c. Bryophyte b. Megaspore d. Angiosperm

Which is a leading theory for the formation of fossil fuels?

Allele segregation and gamete formation one character in peas that mendel studied was yellow versus green seeds.

A 14 month old child returns from surgery for an undescended testicle. when planning for the child's discharge, the nurse should remind the parents to observe their child for