NECO Biology Past Questions & Answers - Page 3

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21.

Exoskeleton is a characteristic feature of

A.

amoeba

B.

earthworm

C.

hydra

D.

millipede

E.

tapeworm

Correct answer is D

No explanation has been provided for this answer.

22.

Which of the following is an abiotic factor in an ecosystem?

A.

Food

B.

Host

C.

Parasite

D.

Predator

E.

Pressure

Correct answer is E

No explanation has been provided for this answer.

23.

The structure in cell concerned with the synthesis of proteins is the

A.

endoplasm reticulum

B.

ribosome

C.

nucleus

D.

plasma membrane

E.

golgi apparatus

Correct answer is B

No explanation has been provided for this answer.

24.

Root hairs are extensions of the

A.

cortex

B.

endodermis

C.

epidermis

D.

piliferous layer

E.

vascular bundle

Correct answer is C

No explanation has been provided for this answer.

25.

The cortex of a herbaceous stem is made up of

A.

collenchyma and parenchyma

B.

collenchyma and sclerenchyma

C.

parenchyma and sclerenchma

D.

pericycle and endodermis

E.

sclerenthyma and endodermis

Correct answer is A

No explanation has been provided for this answer.

26.

Fern plants carry out Photosynthesis in the

A.

frond

B.

rhizome

C.

sorus

D.

stolon

E.

thallus

Correct answer is A

No explanation has been provided for this answer.

27.

The basic unit of classification of living things is the

A.

class

B.

genus

C.

kingdom

D.

phylum

E.

species

Correct answer is E

No explanation has been provided for this answer.

28.

Which of the following is bryophyte?

A.

Bladderwort

B.

Flytrap

C.

Liverwort

D.

Pitcher

E.

Sundew

Correct answer is C

No explanation has been provided for this answer.

29.

Which of these influences growth movement in plants?

A.

Acetic acid

B.

Auxins

C.

Chlorophyll

D.

Enzyme

E.

Ethylene

Correct answer is B

No explanation has been provided for this answer.

30.

What will be the phenotypic ratio in the f1 generation, if a dominant red flowered plant (RR) is crossed with recessive white flowered plant (rr)?

A.

1 red : 1 white

B.

2 red : 0 white

C.

3 red : 1 white

D.

4 red : 0 white

E.

4 red : 4 white

Correct answer is D

No explanation has been provided for this answer.