11.A tomato plant has 12 chromosomes in each egg/sperm cell. How many chromosomes do each of their somatic cells have?

How do adaptation affect a species?

For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a. control b. hypothesis c. procedure d. system

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell