Invertebrates- Arthropods- Insects, Crustaceans and Arachnids

Question 1

How many different species of insects are there?

Answer 1

over 1 000 000 (one million)

Question 2

Name 3 examples of insects.

Answer 2

Mosquitoes, beetles, locusts.

Question 3

Where are insects found on Earth?

Answer 3

They are found in nearly all the different environments on Earth, usually on land.

Question 4

What covers the exoskeleton of an insects, what is it called and why?

Answer 4

Waxy covering, called the cuticle, to prevent water loss.

Question 5

Name the three body parts of the insect.

Answer 5

Head, thorax, and abdomen.

Question 6

How many legs do insects have? Name a property of the legs of an insect.

Answer 6

3 pairs of legs, all jointed

Question 7

How many eyes do insects have and what do they do?

Answer 7

1 pair compound eyes used to detect movement.

Question 8

Do insects have antennae? If so, what are they used for?

Answer 8

Yes, they have 1 pair antennae used to sense the environment.

Question 9

How many mouthparts do insects have?

Answer 9

3 pairs.

Question 10

How many different species of arachnids are there?

Answer 10

Over 100 000.

Question 11

Name 3 examples of arachnids.

Answer 11

Spiders, scorpions, ticks.

Question 12

Name the parts of the body of the arachnid.

Answer 12

The head and thorax are fused together to make the cephalothorax. The cephalothorax and the abdomen make up the arachnid.

Question 13

How many legs do arachnids have? Name a property of the legs of an arachnid.

Answer 13

4 pairs of legs, all jointed.

Question 14

Do arachnids have antennae or wings? If so, what are they used for?

Answer 14

No wings, no antennae. Poor arachnids.

Question 15

How many eyes do arachnids have and what types of eyes are they?

Answer 15

1 pair compound eyes, 8 pairs simple eyes.

Question 16

How many appendages do arachnids have, what is an example of a property of them, and what are they used for?

Answer 16

2 pairs of modified appendages, used for feeding, defence and sensory perception.

Question 17

How many different species of crustaceans are there?

Answer 17

About 67 000 species.a

Question 18

Name 3 examples of crustaceans.

Answer 18

Lobster, crab, crayfish.

Question 19

Choose the correct answer: A: Crustaceans all look similar/the same/different. B: They are all part of the same/a similar/a different group.

Answer 19

A= Different B= The same

Question 20

Name an interesting property of the crustacean.

Answer 20

They have a hard, exoskeleton-like shell.

Question 21

Do crustaceans really have jointed legs?

Answer 21

Yup. Did you really think the answer was no??? Lol.

Question 22

How many body parts do the crustaceans have and what are they?

Answer 22

2-3, depending on the crustacean. Sometimes they have a cephalothorax and an abdomen. Other times they have a head, a thorax, and an abdomen.0

Question 23

What may be/are attached to the parts of the body of the crustacean?

Answer 23

Legs or other appendages.

Question 24

Name the goups and the groups under the groups of invertebrates.

Answer 24

Arthropods | Molluscs

• Insects |
• Arachnids |
• Crustaceans |

In total, Arthropods, Molluscs, Insects, Arachnids and Crustaceans.