Invertebrates- Arthropods- Insects, Crustaceans and Arachnids Flashcards Preview

Grade 7 Natural Science > Invertebrates- Arthropods- Insects, Crustaceans and Arachnids > Flashcards

Flashcards in Invertebrates- Arthropods- Insects, Crustaceans and Arachnids Deck (24)
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1

How many different species of insects are there?

over 1 000 000 (one million)

2

Name 3 examples of insects.

Mosquitoes, beetles, locusts.

3

Where are insects found on Earth?

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

4

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

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

5

Name the three body parts of the insect.

Head, thorax, and abdomen.

6

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

3 pairs of legs, all jointed

7

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

1 pair compound eyes used to detect movement.

8

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

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

9

How many mouthparts do insects have?

3 pairs.

10

How many different species of arachnids are there?

Over 100 000.

11

Name 3 examples of arachnids.

Spiders, scorpions, ticks.

12

Name the parts of the body of the arachnid.

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

13

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

4 pairs of legs, all jointed.

14

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

No wings, no antennae. Poor arachnids.

15

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

1 pair compound eyes, 8 pairs simple eyes.

16

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

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

17

How many different species of crustaceans are there?

About 67 000 species.a

18

Name 3 examples of crustaceans.

Lobster, crab, crayfish.

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.

A= Different B= The same

20

Name an interesting property of the crustacean.

They have a hard, exoskeleton-like shell.

21

Do crustaceans really have jointed legs?

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

22

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

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

23

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

Legs or other appendages.

24

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

Arthropods    |   Molluscs

  •   Insects           |
  •   Arachnids      |
  •   Crustaceans  |

 

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