WAEC Biology Past Questions & Answers - Page 324

1,616.

Water vapour is lost in plants during transpiration through

A.

stomata and lenticels

B.

xylem and stomata

C.

sclerenchyma and stomata

D.

parenchyma and lenticels

E.

guard cells and lenticels

Correct answer is A

No explanation has been provided for this answer.

1,617.

Different tissues in plants contribute to the support of its parts as a result of the following characteristics
except

A.

malleability

B.

rigidity

C.

flexibility

D.

resilience

E.

hardness

Correct answer is A

No explanation has been provided for this answer.

1,618.

The stems of young herbaceous plants are kept upright mainly by

A.

osmotic pressure

B.

turgor pressure

C.

transpiration pull

D.

suction pressure

E.

root pressure

Correct answer is B

No explanation has been provided for this answer.

1,619.

Which of the following statements is not correct about the functions of each group of mammalian vertebrae?

A.

Cervical vertebrae support the neck

B.

Thoracic vertebrae articulate with the ribs

C.

Lumbar vertebrae provide attachment for abdominal muscles

D.

Sacral vertebrae support the skull and allow nodding and rotating movements

E.

Caudal vertebrae support the tail and provide attachment for tail muscle

Correct answer is D

No explanation has been provided for this answer.

1,620.

At which of the following stages of mitosis do the two daughter chromosomes separate completely?

A.

Early prophase

B.

Telophase

C.

Anaphase

D.

Late prophase

E.

metaphase

Correct answer is C

No explanation has been provided for this answer.