Biology

The main structure in vertebrates that supports and protects the body is the?

A. skeleton B. ligament C. muscle D. joint Correct Answer: Option A - skeleton

5 years ago

Which of the following is a waste product of an insect?

A. Alkaloids B. Uric acid C. Sweat D. Mucilage Correct Answer: Option B - Uric acid

5 years ago

Which of the following forms about 55% of the volume of the blood in man?

A. leucocytes B. platelets C. plasma D. erythrocytes Correct Answer: Option C - plasma

5 years ago

The part of the mammalian skin involved in excretion is the?

A. sweat glands B. malpighian layer C. sebaceous gland D. horny layer Correct Answer: Option A - sweat glands

5 years ago

Which of the following helps in the clotting of blood?

A. Red blood cells B. White blood cells C. Plasma D. Platelets Correct Answer: Option D - Platelets

5 years ago

A plant tissue that carries water and mineral salts is the?

A. cambium B. xylem C. cortex D. phloem Correct Answer: Option B - xylem

5 years ago

The blood circulatory system of vertebrates consists of?

A. heart, arteries, capillaries and veins B. heart, aorta, capillaries and veins C. heart, aorta, arteries and veins D. heart,…

5 years ago

Which blood cell are involved in the immune response of vertebrates?

A. Phagocytes B. lymphocytes C. erythrocytes D. monocytes Correct Answer: Option B - lymphocytes

5 years ago

An example of a parasitic protozoan is?

A. Paramecium B. Plasmodium C. Eughlena D. Chlamydomonas Correct Answer: Option B - Plasmodium

5 years ago

Fungi are referred to as heterotrophs because they?

A. are filamentous B. lack chlorophyll C. have mycelium D. lack roots Correct Answer: Option B - lack chlorophyll

5 years ago