Growth2

15.7

Growth in Humans and Animal

ECDYSIS/
MOULTING

Multiple Choice

In an insect, the process of removing an old exoskeleton and replacing it with a new larger one is known as

• dialysis

• haemolysis

• ecdysis

• hydrolysis

Multiple Choice

Which of the stages P, Q, R or S, is known as the exponential phase?

• P

• Q

• R

• S

Multiple Choice

Ageing, illness, lack of nutrients or space eventually leads to

• no power

• maturity

• growth

• death

Multiple Choice

Adult and larvae stages in complete metamorphosis feed on different foods and have different predators. In insect metamorphosis both adults and nymphs consume the same food and have similar predators. What is the difference between complete and incomplete metamorphosis based on the information above?

• Complete metamorphosis gives insects a survival advantage.

• Incomplete metamorphosis gives insects a survival advantage.

• Different food habits in complete metamorphosis results in a short life cycle.

• Similar food habits in incomplete metamorphosis results in a short life cycle.

Multiple Choice

Graph of measurement of physical changes against time known as ...

• growth curve

• growth rate

• development curve

• development rate

Multiple Choice

What is growth?

• it is the quantitative change in form in an organism over a period of time

• it is quantitative increase in size in an organism over a period of time

• it is the change in the degree of specialization of tissues

• it is a measure of an increase in size of an object

Multiple Choice

The process where meristematic cells become specialized is called

• cell differentiation

• cell derivation

• cell enlargement

• cell division

Multiple Choice

What is /are the disadvantages of using the wet mass of an organism to measure growth

I. the measurement is not accurate

II. water content in the organism is inconsistent

III. it is used only to measure organisms living in water

• I only

• I and II only

• II and III only

• I, II and III

Multiple Choice

Which of the following are related to growth phases?

I Cell enlargement

II Cell division

III Cell maturation

• I only

• I and II only

• II and III only

• I, II and III

Multiple Choice

Which of the following is the most accurate parameter to use for measuring the growth of a plant?

• Dry mass

• Weight mass

• Height

• Surface area

Multiple Choice

The figure shows the growth phases of an organism. Describe what happen during log phase?

• Cells are still dividing but at a rate replacing the cells that have died

• Growth slow down because limited by internal or external factors

• The fastest organism growth

• Organisms is trying to adapt to the new environment

Multiple Choice

Exoskeleton is periodically shed in a process known as _____.

• ecdysis

• instar

• chitin

• chaetae

Multiple Choice

During __________, growth rate is slow but growth rate will accelerate in _________, due to sufficient of food supply.

• Log phase, linear phase

• Lag phase, stationary phase

• Lag phase, log phase

• Linear phase, log phase

Multiple Choice

Plotting the increase in weight of a germinating pea seedling against time, produces

• an exponential curve.

• an inclined straight line.

• a sigmoid curve.

• a horizontal straight line.

Multiple Choice

Which statement about incomplete metamorphosis is true?

• Butterflies go through incomplete metamorphosis

• The first stage is an egg

• A stage of incomplete metamorphosis is a larva

• A stage of incomplete metamorphosis is a pupa

Multiple Choice

What is the correct order of development for a butterfly?

• WXYZ

• ZWYX

• WXZY

• ZYXW

Multiple Choice

What is true about complete metamorphosis?

• They have four stages; egg, pupa, larva, adult

• The adult stage looks different from the nymph stage

• The adult stage looks like the nymph stage

• They have three stages; egg, nymph, adult

Multiple Choice

Which insects go through incomplete metamorphosis?

• Moths and ladybugs

• Ants and bees

• Grasshoppers, crickets, and dragonflies

• Butterflies and cockroach

Multiple Choice

What do these pictures represent?

• Incomplete metamorphosis

• Egg stage

• Complete metamorphosis

• Larva stage

Multiple Choice

Why must insects go through ecdysis?

• To reproduce more effectively

• To shed off the exoskeleton for growth and development.

• To run away from predator

• To regulate the body temperature