Why is it that cancer does not form every time there is a mistake during the cell cycle? A
Eating healthy foods destroys cancer cells.
B
Checkpoints stop the cell cycle when a mistake is made.
C
Some cells cannot form tumors.
D
Whenever mitosis occurs, cancer cells die.

Which of the following is true of microbes? a. ninety-nine percent of all microbes are pathogenic.b. gene expression in bacteria is very similar to gene expression in humans, which facilitates the use of bacteria in recombinant biotechnology and gene therapy.c. all bacterial enzymes are harmful to humans and the environment.d. microbes create pollutants and toxins that harm the environment.

Identify any four organelles that should be present in the eukaryotic organism and describe the function of each organelle

Match the reproductive structures based on their function and the system to which they belong. egg ovary sperm vas deferens vagina fallopian tube testis urethra