IGCSE Biology Paper-2: Specimen Questions with Answers 52 - 54 of 203

Get top class preparation for Bank-PO right from your home: get questions, notes, tests, video lectures and more- for all subjects of Bank-PO.

Question 52

Question

MCQ▾

What is mechanical digestion of food?

Choices

Choice (4)

a.

Compaction of waste

b.

Absorption of nutrients

c.

Breakdown food to smaller size without chemical changes

d.

Break down of food with chemical change

Answer

c.

Explanation

mechanical digestion is breakdown of food to smaller size without chemical change so that the digestive system can more easily process it. The best example of this is mastication, which is the term for chewing.

Question 53

Question

MCQ▾

Semen is stored in

Choices

Choice (4)

a.

Penis

b.

Seminal vesicle

c.

Rostrum

d.

All of the above

Answer

b.

Explanation

The ejaculatory ducts are paired structures in men. The union of the vas deferens with the duct of the seminal vesicle forms each ejaculatory duct. They pass through the prostate, and open into the urethra at the Colliculus seminalis. During ejaculation, semen passes through the prostate gland, enters the urethra and exits the body via the tip of the penis.

Question 54

Question

MCQ▾

Which of the following is a correct order?

Choices

Choice (4)

a.

b.

c.

Population ⇾ Community ⇽ Biome ⇾ Ecosystem

d.

Answer

b.

Explanation

It is a level of organization in which largest unit is biosphere and smallest unit is species. In addition, its correct order is -

Developed by: