Invertebrates Arthropods classes

1.

Invertebrates
Arthropods classes

2.

Objectives
● to differentiate invertebrates from vertebrates
● to differentiate different classes of arthropods
● to understadn the importance of metamorphosis

3.

4.

Invertebrates (беспозвоночные)
● No backbone
● Classification characteristic
○ they have legs or not
● Arthropods (членистоногие)
○ all invertebrates with jointed legs

5.

Terminology
jointed
соединённый
sense
чувствовать
antennae
антенна
mouthpart
ротовой аппарат
legs
ноги
head
голова
thorax
грудь
abdomen
брюшко
compound eyes
фасеточные/сложные глаза
jaws
челюсть
claws
клешня

6.

7.

Myriapods (многоножки)
● Many segments on body
● Flexible movement
● Mouthparts
● Biting
● Legs at each segment
● Walking
● Hard exoskeleton
● protection
● Antennae
● Sense dark and moist
environment

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11.

Insects (насекомые)
● 3 body parts
● Head
● Thorax
● Abdomen
● Compound eye
● Mouthparts
● Different for feeding
● Wings
● 2 pairs
● Antennae
● Sense chemicals in environment
● Metamorphosis
● Jointed legs
● 3 pairs in thorax

12.

3 Body parts

13.

Compound eye

14.

Butterfly - бабочка

15.

Ladybug

16.

Dragonfly - стрекоза

17.

What is Metamorphosis?
https://www.youtube.com/watch?v=kVm5k99PnBk

18.

Metamorphosis
● Change of body form
● Have different stages
● Do not compete for food
● Specialized for different functions

19.

Metamorphosis
Egg (яйца)
Larva (гусеница)
Pupa (куколка)
Adult (имаго)

20.

Arachnids (паукообразные)
● 2 body parts
● Cephalothorax (head + thorax)
● Abdomen
● Powerful, piercing jaws
● Predators
● More than one eye
● Detect pray
● No antennae
● Jointed legs
● 4 pair
● Chase and hold prey
● Spinneret
● Produce long and thin silk

21.

Spinneret
(прядильный орган)

22.

Powerful, piercing jaws

23.

Spider - паук

24.

Tick - клещ

25.

Scorpion - cкорпион

26.

Crustaceans (ракообразные)
● Jointed legs
● More than 4 pair
● Eyes
● sense in aquatic environment
● Gills
● Breath in water
● Claw
● Hold and break shells of mollusks

27.

Hard claws

28.

Crab - краб

29.

Shrimps - креветки

30.

Lobster - омар

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Homework