The bee that lays eggs in a hive is called

A. broiler

B. drone

C. layer

D. queen

E. worker

The biosphere can best be defined as part of the

A. atmosphere that contains moisture

B. earth that contains gases

C. earth that is liquid

D. earth that supports life

E. ocean that supports life

Translocation of food substances in plants takes place through

A. collenchyma

B. parenchyma

C. phloem

D. sclerenchyma

E. xylem

Herbicides are chemicals used to

A. check the spread of diseases

B. control dormancy in seeds

C. control insects

D. control weeds

E. control pests

The sun rays reach the earth’s surface by

A. conduction

B. convection

C. radiation

D. reflection

E. refraction

The following are effects of food shortage on population size EXCEPT

A. competition

B. decline in reproduction

C. emigration

D. increase in natality

E. mortality

Vitamin K deficiency causes

A. constipation

B. indigestion

C. low sperm count

D. uncontrolled haemorrhage

E. stomach and duodenal ulcer

Which of the following is an example of a multiple fruit?

A. cashew

B. maize

C. mango

D. orange

E. pineapple

Which of the following is NOT a plant hormone?

A. Abscissic acid

B. Auxin

C. Cytokinin

D. Cytochrome

E. Gibberellins

Which of the following is an immediate source of energy to man?

A. Beans

B. Butter

C. Egg

D. Orange

E. Plantain