Two atoms are isotopes of the same element. Which of the following should be the same for these two atoms? A. The number of molecules B. The number of protons C. The number of neutrons D. The number of electrons

Common ancestry and evolution paragraphs

What macromolecule has the function of providing structure and catalyzing reactions (as enzymes) ?

Which statement best describes trends in safety in underground and surface mining in the United States?

An ecosystem with wet soil, willow trees, and orchids is likely a. a marsh. c. a forest. b. a swamp. d. a pond.

The membrane lining the interior of the chest wall is called

How is the phosphorus cycle different from the nitrogen or carbon cycles?

15. Which of these organs would not be cut by a midsagittal plane? a) urinary bladder b) heart d) gallbladder c) small intestine

Which of the following statements is true of cartilage and bone development? A. Some cartilage becomes bone through ossification during childhood development. B. Cartilage produces white blood cells, which are necessary for immune system health. C.

Unlike us humans, bacteria reproduce only by mitosis (not meiosis). What would happen if humans reproduced by mitosis only? Explain your answer.

Imagine that you have stumbled across a secret laboratory where an evil scientist is conducting unauthorized brain research. By altering brain structures, he has created superheroes who have specialized powers or abilities.