Human body cells each have 46 chromosomes in the nuclei. meiosis is necessary in order to ensure that each gamete produced in the human body has

A) 12 chromosomes

B) 23 chromosomes

C) 46 chromosomes

D) 92 chromosomes

Which is bigger molecule or atom

What does the center of the DNA strand exhibit?

When technological advancement was necessary before scientists could begin to observe cells

The skeletal muscle complex known as the triad consists of A) actin, myosin, and filaments. B) a terminal cisternae and two transverse tubule. C) filaments, myofibrils, and sarcomeres. D) A bands, H bands, and I bands. E) None of the above.

Acid + base yields salt + water is an example of a (n): -synthesis reaction -exchange reaction -decomposition reaction -reversible reaction

The science of heredity

At which age range does the most intensive myelination of nerve cells occur?

The role of the excretory system is to rid the body of toxic waste products. Which of the following body systems also plays a direct role in removing waste products from the body? A) endocrine B) nervous C) respiratory D) skeletal

What supplement might be recommended by the food and nutrition board?

Which reflex constricts pupils when we view lose objects?