MR 3 - Biology

  The mammalian stomach can carry out a number of processes except

• • A. absorption of glucose

• • B. secretion of hydrochloric acid

• • C. secretion gastric juice

• • D. churning of food

• • E. production of trypsin

The neck region of the tape worm, (taenia) is responsible for the

• production of egg

• storage of egg

• formation of new segment

• development of the suckers

• fragmentaion of the body segment

Which of these is not true of the insect? The possession of

• two pairs of antennae

• jointed appendages

• exoskeleton

• three pairs of legs

• segmented body

The study of organism and the environment of an abandoned farmland is the ecology of?

• a community

• a population

• a specie

• a habitat

• an ecosystem

A potometer with a leafy shoot weighed 18.9g initially and weighed 17.9g after one hour. From this it follow that

• the shoot absorbed 1g of water per hour

• 1g of water per hour evaporates from the potometer

• the shoot lost 1g of water per hour

• the potometer water receded at the rate of 1g per hour

• the shoot was respiring and lost weight at rate of 1g per hour