Which of the following conditions will cause a decrease in body temperature?

A. increased metabolism

B. Shivering

C. Vasoconstriction of capillaries of the skin

D. Relaxation of the erector muscles

The organs constantly in touch with the liver are

A. pancreas, colon and caecum

B. duodenum and stomach

C. illeum, stomach and colon

D. stomach and gall bladder

Which of the following is responsible for the increased heart beat of a boy who saw a python? increased
production of

A. adrenalin

B. insulin

C. pituitrin

D. thyroxin

The nerves that arise from the brain are known as

A. spinal nerves

B. sacral nerves

C. cranial nerves

D. optic nerves

The neurone that relay the message of effector organs are called

A. efferent neurones

B. intermediate neurones

C. afferent neurones

D. spinal nerves

Each neurone consists of the following structures except

A. cell body

B. dendrites

C. axon

D. white matter

The simplest form of nervous pathway which links receptors with effectors is known as the

A. relay neuron

B. reflex arc

C. motor nerves

D. sensory nerves

Which of the following parts of the eye is sensitive to light?

A. Retina

B. Cornea

C. Choroid layer

D. Optic nerves

What happens to an ovule of a flower, after fertilization? It

A. becomes a fruit

B. withers away

C. becomes a seed

D. forms the cotyledons

Which of the following is not a dry indehiscent fruit?

A. Legume

B. Cypsela

C. Samara

D. Caryopsis