Form 4: 14.1 Endoskeleton, exoskeleton, hydrostatic skeleton

1.

Multiple Choice

30 sec

1 pt

The diagram shows some invertebrates. What is the support system for animals?

Endoskeleton

Exoskeleton

Hydrostatic skeleton

2.

Multiple Choice

30 sec

1 pt

What is the support system of vertebrates as shown in the diagram.

Endoskeleton

Exoskeleton

Hydrostatic skeleton

3.

Multiple Choice

30 sec

1 pt

What is the type of skeleton in a snake?

Endoskeleton

Exoskeleton

Hydrostatic skeleton

4.

Multiple Choice

30 sec

1 pt

What is one of the characteristics of exoskeleton?

Limits the size of animals

Bones can vary (change) in size to support mass

Great flexibility

Fluid in shape

5.

Fill in the Blank

30 sec

1 pt

The animals that have exoskeleton will shed the skin repeatedly until they reach adulthood as shown in the diagram. The process of shedding or moulting the skin is called as __________

6.

Multiple Select

30 sec

1 pt

The diagram shows a growth curve of an insect with exoskeleton. Tick TWO statements that explain the growth of the insect.

The vertical part in the curve shows a rapid growth

The vertical part in the curve shows a zero growth stage

The horizontal part (I, II, III, IV, V) shows a rapid growth

The horizontal part (I, II, III, IV, V) shows the zero growth stage.

7.

Multiple Choice

30 sec

1 pt

Exoskeletons are soft. True of false?

TRUE

FALSE

8.

Multiple Choice

30 sec

1 pt

Endoskeletons are skeletons outside the body. True or false?

TRUE

FALSE

9.

Multiple Choice

30 sec

1 pt

Animals with exoskeletons will always increase their body lengths even after adulthood. True or false?

TRUE

FALSE

10.

Multiple Choice

30 sec

1 pt

The hydrostatic skeleton like a worm maintains and controls its body shape. True or false?

TRUE

FALSE

11.

Multiple Choice

30 sec

1 pt

What is a major difference between a hydrostatic skeleton and an endoskeleton?

A hydrostatic skeleton is located inside the body and the endoskeleton outside.

A hydrostatic skeleton is found in worms and an endoskeleton in invertebrates.

An endoskeleton is located inside of the bodies of vertebrates and are composed of bone, while hydrostatic skeletons are fluid filled skeletons.

Both ( option 1 and 2)

12.

Multiple Choice

30 sec

1 pt

What is the exoskeleton made of ?

Bone

Chitin

Fluid

None of the above

13.

Multiple Choice

30 sec

1 pt

Identify the type of skeleton that the following animal possesses and at least one advantage and disadvantage. (APP)

Exoskeleton. Adv: Reduces water loss disadvantage: the growth of the animal is limited.

Hydrostatic skeleton: advantage: does not require any specialized support structures dis: the animal has to moult in order to grow.

Endoskeleton. Adv: protects internal organs. dis: takes a long time to repair.

Hydrostatic skeleton. Adv: does not require attachment for muscles. dis: limited in size and speed.

14.

Multiple Choice

30 sec

1 pt

What is the role that chitin plays in an exoskeleton?

It fills the body cells and cavities in the body.

It enables the exoskeleton to grow and stretch.

It forms body plates with flexible joints which allows for muscle attachment.

None of the above.

15.

Multiple Choice

30 sec

1 pt

Lack of protection is a disadvantage for which skeleton type? (ANA)

Endoskeleton

Hydrostatic skeleton

Exoskeleton

None of the above

16.

Multiple Choice

30 sec

1 pt

What characteristics supports exoskeleton?

Limits the size of the animals.

Great flexibility.

Bones can vary in size to support mass.

Fluid shape.

17.

Multiple Choice

30 sec

1 pt

why do aquatic vertebrates have a smaller endoskeleton compared to land vertebrates of the same body mass?

they have exoskeleton to support their body weight

they are mostly supported by water bouyancy

their fatty tissues support their weight

they move very slowly and are inactive

18.

Multiple Choice

30 sec

1 pt

in the water, this animal is supported by....

hydrostatic skeleton and endoskeleton

water bouyancy and exokeleton

exoskeleton and hydrostatic skeleton

hydrostatic skeleton and water bouyancy

19.

Multiple Choice

30 sec

1 pt

Animal X has very weak pectoral and pelvic girdles. Which of the following is an example of animal X?

20.

Multiple Choice

30 sec

1 pt

Which of the following statements are true regarding aquatic vertebrates?

i) they have very big pelvic girdles

ii) they have very strong pectoral girdles

iii) they are supported by the buoyancy of water

iii only

i and ii only

ii and iii only

i, ii and iii

21.

Multiple Choice

30 sec

1 pt

Whales will die if they are washed ashore. his is because

i) they enormous body weight will press down on their organs and crush them.

ii) their body temperature becomes very high on land

iii) they cannot breathe on land

i only

iii only

i and ii only

i,ii and iii

22.

Multiple Choice

30 sec

1 pt

Tortoises and turtles have both endoskeletons and exoskeletons

TRUE

FALSE

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