Why is it important that sex cells have half the number of chromosomes as body cells?

The part of the cytoskeleton made from the protein actin is called a

The primary structure of a protein refers to the sequence of amino acids that are linked together in a long chain. Which of the following common items would best represent the primary structure of a protein? O A.

A group of scientists studied the invasion of a species in an area and its effect on the population of a native species. Study the given data and determine the percent decrease in the native species population between years 1 and 2 and years 2 and 3.

B. Explain Why do communities change over time

Does mRNA have codons or anti-codons

The geographical processes that shape earths features today

Researchers working with Rob Dunn set out to collect and identify microbes found in belly buttons. When the researchers began identifying these microbes, they found that the microbes represented a wide range of metabolic activities.

Which of the following facts about the ocean water indicates that the ocean is a major resource of nutrients?

How do fossils and fossil record support the idea that life changes over time

How are organisms in the domains Bacteria and Archaea similar? A. They are protists. B. They are ancestors of eukaryotes. C. They have membrane enclosed organelles. D. They lack a nucleus.