Vertebrates and Invertebrates

Invertebrates and Vertebrates

The 6 Kingdoms

Organisms in biology can be classified into 6 Kingdoms.
These 6 Kingdoms are:

• Animals

• Plants

• Protists

• Monerans - Archaebacteria and Eubacteria

• Fungi

Animals are multicellular, these cells have a cell membrane that keep everything within it together.
The activity of the cell is controlled by the nucleus.

Animals cells

Invertebrates don't have the distinctive feature their counterpart have.
Invertebrates DO NOT have a backbone.
Examples of invertebrates are Porifera, Cnidaria, and Mollusca.

Vertebrates have a distinctive feature compared to their counterpart.
Vertebrates have a backbone. Examples of vertebrates are mammals, reptiles, birds, fish, and Amphibians.

Animals can be divided into Invertebrates and Vertebrates.

The Animal Kingdom

Exoskeleton is the hard part found on the outside of the body. For example; insect wings.

Exoskeleton

Endoskeleton is the hard part founds inside the body. For example; bones or cartlidge.

Endoskeleton

Endo and Exoskeleton

Symmetry of invertebrates

Invertebrates can be identified looking at their features and if they are either Asymmetrical, Bilateral symmetry, or radial symmetry.
Lets look at the next video that explains these.

Invertebrates

The main Phyla of invertebrates

There are many types of invertebrates, to the side is the main Phyla groups of invertebrates.

Vertebrates

Vertebrates can be put into 5 classes. The following slides will explore these a little more and highlight some features you could use to classify them with.

• Have hair or fur.

• Feed their young milk from mammary glands.

• Constant body temperature.

• Breathe air through lungs.

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Mammals

3 Sub-classes of Mammals

Placentals give birth to live young, these mammals give birth to more developed babies.

Placental

There are only a small amount of Monotrmes, these mammals give birth to young by laying eggs and they hatch from the eggs.

Monotremes

Marsupials

Marsupials give birth to live young but they need to live a significant time living in their mother's pouch to develop

• Have feathers, a beak, clawed feet, and wings.

• Constant body temperature.

• Lay hard eggs.

• Breathe air through lungs.

Birds

• Have gills and scales.

• Body temperature changes with their surroundings.

• Some have a skeleton of cartilage but

• most have bones.

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Fish

• Most lay eggs with waterproof shell.

• Body temperature changes with their surroundings.

• Have dry, scaly skin.

• Breathe air through lungs.

Reptiles

• Start life in water, live on land as adults.

• Have moist skin.

• Adults do have lungs, but mainly get air through their skin.

• Body temperature changes with their surroundings.

Amphibians

Multiple Choice

How many kingdoms are organisms classified into in biology?

• 4

• 5

• 6

• 7

Multiple Choice

What is the function of the cell membrane in animal cells?

• To control the activity of the cell

• To produce energy for the cell

• To keep the contents of the cell together

• To store food for the cell

Multiple Choice

Which of the following is a characteristic of vertebrates?

• They do not have a backbone.

• They have a backbone.

• They are all microscopic.

• They can only live in water.

Multiple Choice

What is an endoskeleton?

• The soft part found inside the body

• The hard part found inside the body

• The hard part found outside the body

• The soft part found outside the body

Multiple Choice

What is an exoskeleton?

• The hard part found inside the body

• The soft part found outside the body

• The hard part found outside the body

• The soft part found inside the body

Multiple Choice

Which term describes an organism with one line of symmetry?

• Radial symmetry

• Asymmetrical

• Bilateral symmetry

• Sessile

Multiple Choice

What characteristic defines organisms with "Radial symmetry"?

• No symmetry

• One line of symmetry

• Multiple lines of symmetry around a central point

• Immobility

Multiple Choice

Which of the following is NOT a group of vertebrates?

• Mammals

• Birds

• Insects

• Fish

Multiple Choice

How many sub-classes of mammals are there?

• 2

• 3

• 4

• 5

Multiple Choice

Which of the following is NOT a sub-class of mammals as per the image?

• Monotreme

• Marsupial

• Placental

• Reptilian

Multiple Choice

What is the primary difference in the reproductive methods of monotremes and marsupials?

• Monotremes give live birth, while marsupials lay eggs.

• Monotremes are warm-blooded, while marsupials are cold-blooded.

• Monotremes lay eggs, while marsupials give birth to live young that develop in a pouch.

• Monotremes have a pouch, while marsupials lay eggs.

End of the Lesson

Now it is time to check your understanding further and complete the quiz related to todays lesson.