Which factor affects the heart rate in mammals?

A. RBC count in blood

B. Blood type

C. Need for oxygen

what one?

When a human moves to high altitudes (like from Boston to Denver, Colorado), they adapt to the lack of oxygen by increasing their red blood count. * True False

Which statement is false? Organ rejection is a big risk in patients with organ transplants. Donor organs are treated with disinfectants and antibiotics before they are placed in the recipient.

Which of these is returned to the atmosphere when plants transpire?

Do rabits regrow teeth

Which of the following is NOT a step in fertilization? entry of sperm into egg fusion of sperm and egg nuclei contact between egg and sperm none of the above

Which of the following items would have the highest density? A. A 2 cm3 block of lead with a mass of 11 grams B. A 12 cm3 block of wood with a mass of 3 grams C. A 12 cm3 block of aluminum with a mass of 2 grams

Why are the nerves that take information from our world called sensory neurons?

Explain the effects of radiation on the cellular process of mitosis and meiosis

A biome that has a large amount of rainfall, high temperatures, and a poor soil is a

When a ball is rolling down a hill sketch and label the forces that pull the ball down and the forces that slow the ball done