IGCSE Biology Paper-3: Specimen Questions with Answers 146 - 150 of 358

Question 146

Question

MCQ▾

There is another example of food chain. Human beings comes in which tropic level?

Figure Shows Example of Food Chain

Choices

Choice (4)

a.

a

b.

c

c.

d

d.

b

Answer

c.

Explanation

plants are producer, primary consumer may be goat, cow and secondary consumer may be cat, dog and example of top consumer is human being.

Question 147

Write in Short

Short Answer▾

Variations among organisms is called as biodiversity. Write down Four major threats of biodiversity in A, B, C and D.

Image Shows Different Reasons Behind Loss of Biodiversity

Explanation

In this Image in Different Reasons Behind Loss of Biodiversity

Passage

Figure shows the male reproductive system and part of the urinary system.

The Male Reproductive System and Main Parts of Urinary System

Question 148 (1 of 3 Based on Passage)

Edit

Write in Short

Short Answer▾

Describe one method of birth control that a male can used

Explanation

Condoms are used on the penis during intercourse. They are made of thin latex or plastic that changed into the shape of a penis. They reduce the risk of sexually transmitted diseases (STD) .

Question 149 (2 of 3 Based on Passage)

Edit

Write in Short

Short Answer▾

By whom the sex of a baby is determined

Explanation

by the male parent՚s chromosomes the sex of a baby is determined.

Question 150 (3 of 3 Based on Passage)

Edit

Write in Short

Short Answer▾

State name and location of the part labelled X, Y and Z.

Explanation

X-testis- They are paired organs located outside the bodycavity in the scrotum.

Y-Vas deferens- There is a pair of these ducts in the male body, which connecting the left and right epididymis to the ejaculatory ducts in order to travel sperm

Z-ureter- There are two ureters, one joined to each kidney. The upper half of the ureter is present in the abdomen and the lower half is located in the pelvic area.

Developed by: