ATI TEAS 7 Science

Question 1 of 5

In nuclear physics, the term 'magic number' refers to specific numbers of protons or neutrons that contribute to:

A. Increased nuclear instability B. Enhanced radioactive decay rates C. Exceptional stability of the nucleus D. All of the above

Question 2 of 5

Which hormone, produced by the thyroid gland, plays a key role in regulating calcium levels in the blood by promoting calcium release from bones and increasing calcium reabsorption in the kidneys?

A. Calcitonin B. Parathyroid hormone (PTH) C. Thyroxine D. Insulin

Question 3 of 5

Which of the following blood vessels carries oxygenated blood from the lungs to the heart?

A. Pulmonary vein B. Pulmonary artery C. Aorta D. Vena cava

Question 4 of 5

How does sunscreen protect the skin from harmful ultraviolet (UV) rays?

A. By reflecting UV rays away from the skin B. By absorbing UV rays and converting them to heat C. By blocking UV rays completely D. By stimulating melanin production

Question 5 of 5

What is the largest bone in the human body?

A. Femur (thigh bone) B. Tibia (shin bone) C. Humerus (upper arm bone) D. Scapula (shoulder blade)

ATI TEAS 7 Science

Skildor

ATI TEAS 7

ATI TEAS 7