IGCSE Biology Paper-1: Specimen Questions with Answers 64 - 67 of 208

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Question 64

Question

MCQ▾

Which is the pattern of self-pollination

Choices

Choice (4)

a.

Pea nut

b.

Grapes

c.

Apple

d.

All a., b. and c. are correct

Answer

d.

Explanation

self-pollination occur within same flower.

Question 65

Question

MCQ▾

If you are B positive you can donate blood to-

Choices

Choice (4)

a.

O +

b.

Only B +

c.

All type

d.

B + and AB +

Answer

d.

Explanation

Explanation- In blood Group B– only the B antigen on red cells and A antibody present in the plasma.
Showing Blood Group Charts

Question 66

Question

MCQ▾

Urine concentration is control through-

Choices

Choice (4)

a.

Cholesterol

b.

ADH

c.

Oxytocin

d.

Glucagon

Answer

b.

Explanation

Antidiuretic hormone is also known as vasopressin, ADH acts on the kidneys and control urine concentration.

Question 67

Question

MCQ▾

Where the location of cranium and humerus in human body?

Diagram of the Human Skeleton

Choices

Choice (4)

a.

E & D

b.

A &B

c.

A & D

d.

E & C

Answer

c.

Explanation

The cranium is the part of the skull that protects the brain. The cranium is the superior part of the skull without the mandible. The humerus is the largest bone in the arm. Its smooth, ball-like head fits into the scapula and systems our “ball and socket” shoulder joint.

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