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Science > Skeletons > Flashcards

Skeletons Flashcards

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0
Q

What are the 2 types of skeletons?

A

Exoskeleton

Endoskeleton

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1
Q

What are the 3 reasons why animals have skeletons?

A

To support their bodies
To protect parts of the body
To help them move above

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2
Q

What does exo means in Greek?

A

Outside

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3
Q

Give an example of an exoskeleton

A

Snails

Beetles

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4
Q

What makes up a shell of an exoskeleton?

A

Chitin and calcium

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5
Q

Why are animals with exoskeletons called invertebrates?

A

They do not have a backbone

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6
Q

What makes exoskeleton animals small?

A

The exoskeleton cannot grow and support the body

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7
Q

What is chitin?

A

Hard material that makes up the exoskeleton

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8
Q

What process happens when an animal with an exoskeleton grows and leaves its shell behind?

A

Shedding or mounting

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9
Q

What are the 4 functions of an exoskeleton?

A

Protect from injuries and predators
Support
Thin parts for movement
Colour - camouflage and warnings

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10
Q

What does endo mean in Greek?

A

Inside

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11
Q

What are animals with an endoskeleton called?

A

Vertebrates

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12
Q

What protects the brain?

A

A skull

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13
Q

What does a ribcage protect?

A

The heart and lungs

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14
Q

What joins arms and legs?

A

Your shoulders and hips

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15
Q

What is cartilage?

A

It is flexible, tough and rubbery and is found at the joints where the bones meet.

16
Q

What is bone?

A

A bone is a hard and strong material

17
Q

What is a vertebrae?

A

A small bone which makes up the backbone

18
Q

Give examples of endoskeletons.

A

Mammals
Birds
Reptiles
Fish

19
Q

How many bones make up the adult human skeleton?

A

206

20
Q

What do ligaments do?

A

Joins bones together

21
Q

What is a ligament

A

A strong tissue

22
Q

What is a tendon?

A

A tissue which joins muscle to bone

23
Q

What does a backbone protect?

A

Kidney and torso

24
Q

What does a ribcage protect?

A

Liver
Stomach
Lungs
Heart

25
Q

What does a skull protect?

A

Brain

26
Q

Give 3 points on movement in our body related to the skeleton

A
  1. Humans & animals can move because of their skeletons & muscles.
  2. Muscles tighten and shorten or relax & lengthen. This moves the bone they are joined to.
  3. Muscles are joined to the inside of the endoskeleton.

Science (14 decks)

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