IGCSE Biology Paper-1: Specimen Questions with Answers 4 - 6 of 208

Question 4

Write in Short Short Answer▾

The diagrams show a leaf and a section through part of the same leaf.

Which label on the diagrams indicates an organ?

Cross Section of the Leaf Which is Given Here
Edit

Explanation

Label A is indicating lamina part of leaf.

Label B is indicating palisade mesophyll cells.

Label C is indicating spongy mesophyll cells.

Label D is indicating sub-stomatal air space.

Question 5

Question MCQ▾

Small finger like structures called villi are present in?

Choices

Choice (4)

a.

Esophagus

b.

Large intestine

c.

Stomach

d.

Small intestine

Edit

Answer

d.

Explanation

The small intestine absorbs useful complexes from the digested food.

It does this through small villi or tiny microvilli.

These are very small, hair-like present in the walls of the intestine.

Question 6

Question MCQ▾

The diagrams show four different animals. They are not drawn to the same scale.

Select Which One of Following Are Vertebrates

Which are vertebrates?

Choices

Choice (4)

a.

1 and 3

b.

2 and 3

c.

2 and 4

d.

1 and 4

Edit

Answer

a.

Explanation

Vertebrates are animals that have a backbone or spinal column, also called vertebrae. These animals include fish, birds, mammals, amphibians, and reptiles.

Invertebrates are animals that don՚t have a backbone or spinal column. These animals include arthropods, shellfish, star fish, worms, jellyfish, insects, and protozoa.