The lymphatic system of mammals rejoins the blood circulatory system at the

A. hepatic vein

B. subclavian vein

C. renal vein

D. common iliac vein

In dissection, the rib cage of mammal has to be opened in order to expose the

A. diaphragm

B. liver

C. heart

D. sternum

Fertilization in humans usually takes place in the

A. lower part of the uterus

B. upper part of the uterus

C. lower part of the oviduct

D. upper part of the oviduct

Insects visit flowers in order to

A. feed on the nectar

B. deposit pollen on the stigma

C. pollinate the flowers

D. transfer pollen from anthers

In epigeal germination, the cotyledons are

A. carried above the ground by the elongation hypocotyl

B. pulled underground by the elongating epicotyl

C. pulled underground by the elongating epicotyl

D. carried above the ground by the elongating epicotyl

Bacteria multiply rapidly by means of

A. budding

B. fragmentation

C. binary fission

D. spore formation

The correct sequence for the perception of smell in mammals is

A. chemicals → olfactory nerve endings → brain

B. dissolved chemicals → nasal sensory cell → brain

C. chemicals → mucus membrane → sensory cells→ brain

D. dissolved chemicals → sensory cells → olfactory nerve → brain

The part labelled III is for

A. protection

B. insulation

C. lubrication

D. growth

The structure labelled II is known as

A. sweat gland

B. lymph vessel

C. blood vessel

D. nerve ending

In mammals, the organ which performs digestive and endocrine functions is the

A. liver

B. pancreas

C. gastric gland

D. salivary gland