Microscopic vs. Multi-cellular Life

The video compares a microscopic amoeba, a single-celled organism, to a bird, which is multicellular. It explains that multicellular organisms, like flowers, humans, and marine iguanas, consist of many different cells. The video also suggests that the first multicellular life forms were microscopic and lived in marine environments.

What is a key difference between an amoeba and a bird?

• Amoebas live on land, birds live in water.

• Amoebas are single-celled, birds are multicellular.

• Amoebas are multicellular, birds are not.

• Amoebas can fly, birds cannot.

Which of the following is an example of a multicellular organism?

• Flower

• Bacteria

• Virus

• Amoeba

What does multicellular mean?

• Able to fly

• Able to live in water

• Made up of many different cells

• Made up of a single cell

Where is it likely that the first multicellular life forms existed?

• In deserts

• In the air

• On land

• In marine environments

What characteristic is shared by the first multicellular organisms?

• They were large and lived on land.

• They were microscopic and lived in marine environments.

• They were single-celled and lived in deserts.

• They could fly and lived in the air.