Standard Grade Biology

Inheritance TopicWhat is a Species?

2

Inheritance

By the end of this lesson you should be able to:

Describe what a species is.

3

What is a species?

Animals and plants reproduce to ensure the of their species.

If the organisms of a species did not then the species would become

extinct survivalreproduce

survival

reproduce

extinct

4

What is a species?

There are many different varieties of dogs.How many can you think of?

Since they can all breed together they are all classed as the same species!

5

What is a species?

Organisms belong to the same

if they can to produceoffspring.

fertile speciesreproduce

speciesreproduce

fertile

6

What is a species?

There are many different races of humans.How many can you think of?

Since they can all breed together they are all classed as the same species!

7

Horses & Donkeys- same species?

Are a horse and donkey the same species?

8

Horses & Donkeys- same species?

Can they interbeed?

What animal is produced?

Is a mule fertile (i.e. can it produce offspring)?

YES

A MULE

NO

9

Horses & Donkeys- same species?

Horses and donkeys are not the same species because…….

10

Other examples- same species?

Oak & Poplar trees are/are not the

same species because…….

Poplar

Oak

11

Other examples- same species?

Blackbird & starling

are/are not the same species because…….

starling

blackbird

12

Other examples- same species?

Dandelion & buttercup are/are

not the same species

because…….

buttercupdandelion

13

Inheritance

By the end of this lesson you should be able to:

Describe what a species is.