The n = 2 shell of an atom contains a maximum of:

two electrons

seven electrons

eight electrons

eleven electrons

The material present in arterioles that is not present in capillaries is (A) a lining of endothelial cells. (B) white blood cells and platelets. (C) fully oxygenated blood. (D) circular smooth muscle cells that can alter the size of the arterioles.

Which of the following most likely happens during a chemical change

1. How far have we been able to drill through Earth's crust?

How does ice wedging break down rocks?

Write down three adaptations humans have to have differential survivability

1 Chromosomes move to the middle of the cell during what phase?

A change in a gene due to damage or incorrect copying is called a evolution. c. segregation. b. meiosis. d. a mutation.

The risk of injury in a car accident is much greater if occupants do not wear a seat belt. Wich of newton's laws explains why this is true? A. Law of inertia B. Law of force and acceleration. C. Law of action-reaction D. Law of gravity

Why does the United States experience winter during the months of November through early March

Simulations are useful for understanding how natural processes work but are not always representative of the real world. How does this simulation differ from what might happen in a true ecosystem?