JAMB Biology Past Questions & Answers - Page 22

106.

An example of arboreal animal is?

A.

squirrels

B.

duck

C.

pig

D.

rat

Correct answer is A

 Arboreal animals are those animals that spend most of their life on trees. They feed, travel, play, and sleep on trees.

1. Koalas · 2. Black spider monkeys · 3. Siamang Gibbon · 4. Three-toed Sloth · 5. squirrel · 6. Rough green snake · 7. Veiled Chameleons · 8. Common brown lemurs.

107.

The internal structure of a leaf that has larger air space is?

A.

palisade mesophyll

B.

epidermis

C.

spongy mesophyll

D.

vascular bundles

Correct answer is C

The spongy mesophyll's function is to allow for the interchange of gases (CO 2) that are needed for photosynthesis. 

108.

A universal recipient of blood belongs to blood group?

A.

O

B.

AB

C.

B

D.

A

Correct answer is B

Blood donors with type O- (O negative) red blood cells are referred to as universal donors and their red blood cells can be given to any other blood type.

Type AB-positive blood is called the "universal recipient" type because a person who has it can receive blood of any type.

109.

Lack of nucleus is a feature in?

A.

osteocyte

B.

neuron

C.

erythrocyte

D.

leucocyte

Correct answer is C

Red blood cells are microscopic and have the shape of a flat disk or doughnut, which is round with an indentation in the center, but it isn't hollow.

Red blood cells don't have a nucleus like white blood cells, allowing them to change shape and move throughout your body easier.

110.

The development of big muscles by a wrestler is an example of?

A.

acquired characteristics

B.

inherited characteristics

C.

mutation

D.

atrophication

Correct answer is A

Acquired traits include things such as calluses on fingers, larger muscle size from exercise or from avoiding predators.