Biology - Study Mode

[#131] Which one is the largest artery in the human body
Correct Answer

(C) Aorta

Explanation

Solution: Most arteries carry oxygenated blood. The largest artery is the aorta, which is connected to the heart and extends into the abdomen.

[#132] Muscular wall of the heart is externally covered by
Correct Answer

(C) Epicardium

Explanation

Solution: The wall of the heart consists of three layers: the epicardium (external layer), the myocardium (middle layer) and the endocardium (inner layer).

[#133] The deposition of cholesterol on the walls of blood vessels causes the arteries to lose their elasticity and get stiffened is called
Correct Answer

(D) Arteriosclerosis

Explanation

Solution: Atherosclerosis, sometimes called "hardening of the arteries," occurs when fat, cholesterol, and other substances build up in the walls of arteries.

[#134] Bacteria are classified in the kingdom
Correct Answer

(C) Monera

Explanation

Solution: Bacteria are classified in the kingdom Monera.

[#135] Which of the following animals shows radial symmetry?
Correct Answer

(C) Star Fish

Explanation

Solution: Star Fish shows radial symmetry.