The tree of life - David Attenborough

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What were the first multi-celled organisms that collapsed upon themselves creating a body with an internal cavity?

Insects

Sponges (correct)

Reptiles

Fish

Which group of creatures developed elongated flaps on their backs that eventually developed into wings?

Reptiles

Fish

Insects (correct)

Birds

What was the first group of creatures that crawled up out of the water and ventured onto land?

Reptiles

Mammals

Birds

Amphibians (correct)

What group of creatures dominated the waters of the world and developed fins equipped with muscles that enabled them to swim with speed and power?

Fish Signup and view all the answers

What was the great disaster that overtook the earth 65 million years ago and caused a great proportion of animals to be exterminated?

A meteorite impact Signup and view all the answers

What group of creatures were the ancestors of today's tortoises, snakes, lizards, and crocodiles?

Reptiles Signup and view all the answers

What was the seemingly insignificant group of survivors that began to increase in numbers on the ground beneath the birds?

Mammals Signup and view all the answers

What is the significance of the stiffening rod in the bodies of some creatures that developed sense organs around their front end?

It allowed them to move around on the seafloor Signup and view all the answers

What was the common characteristic of the first multi-celled organisms that formed hollow balls which collapsed upon themselves creating a body with an internal cavity?

They were able to split replicating themselves as bacteria do Signup and view all the answers

What was the common characteristic of the creatures that developed elongated flaps on their backs which over many generations eventually developed into wings?

They developed sense organs around their front end Signup and view all the answers

What was the common characteristic of the creatures that followed the insects onto the land and were amphibians with wet skins?

They had to return to water to lay their eggs Signup and view all the answers

What was the common characteristic of the creatures that dominated the waters of the world and developed fins equipped with muscles that enabled them to swim with speed and power?

They gulped air from the water surface Signup and view all the answers

What was the common characteristic of the creatures that were the ancestors of today's tortoises, snakes, lizards, and crocodiles?

They had dry scaly skins Signup and view all the answers

What was the common characteristic of the seemingly insignificant group of survivors that began to increase in numbers on the ground beneath the birds?

They had warm insulated bodies Signup and view all the answers

What was the first group of organisms that were able to split and replicate themselves as bacteria do?

Complex chemical molecules Signup and view all the answers

What was the group of creatures that had bodies stiffened by an internal rod and understandably developed sense organs around their front end?

Segmented creatures Signup and view all the answers

What group of creatures followed the insects onto the land and were the ancestors of today's tortoises, snakes, lizards, and crocodiles?

Reptiles Signup and view all the answers

What was the group of creatures that dominated the waters of the world and developed fins equipped with muscles that enabled them to swim with speed and power?

Fish Signup and view all the answers

What was the group of creatures that had their bodies stiffened by encasing it in bone and developed fins equipped with muscles that enabled them to swim with speed and power?

Fish Signup and view all the answers

What was the group of creatures that developed hard protective skins which gave their bodies some rigidity?

Segmented creatures Signup and view all the answers

What was the group of creatures that had warm, insulated bodies and were the first mammals?

Mammals Signup and view all the answers

Question 1

What were the first organisms that were able to split and replicate themselves as bacteria do, and eventually diversified into different groups? Signup and view all the answers

Answer 1

Microscopic blobs cells. Signup and view all the answers

Question 2

What was the common characteristic of the creatures that followed the insects onto the land and were amphibians with wet skins? Signup and view all the answers

Answer 2

They had to return to water to lay their eggs. Signup and view all the answers

Question 3

What was the group of creatures that grew bigger and developed fins equipped with muscles that enabled them to swim with speed and power, thus dominating the waters of the world? Signup and view all the answers

Answer 3

Fish. Signup and view all the answers

The tree of life - David Attenborough

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Questions and Answers

What were the first multi-celled organisms that collapsed upon themselves creating a body with an internal cavity?

Which group of creatures developed elongated flaps on their backs that eventually developed into wings?

What was the first group of creatures that crawled up out of the water and ventured onto land?

What group of creatures dominated the waters of the world and developed fins equipped with muscles that enabled them to swim with speed and power?

What was the great disaster that overtook the earth 65 million years ago and caused a great proportion of animals to be exterminated?

What group of creatures were the ancestors of today's tortoises, snakes, lizards, and crocodiles?

What was the seemingly insignificant group of survivors that began to increase in numbers on the ground beneath the birds?

What is the significance of the stiffening rod in the bodies of some creatures that developed sense organs around their front end?

What was the common characteristic of the first multi-celled organisms that formed hollow balls which collapsed upon themselves creating a body with an internal cavity?

What was the common characteristic of the creatures that developed elongated flaps on their backs which over many generations eventually developed into wings?

What was the common characteristic of the creatures that followed the insects onto the land and were amphibians with wet skins?

What was the common characteristic of the creatures that dominated the waters of the world and developed fins equipped with muscles that enabled them to swim with speed and power?

What was the common characteristic of the creatures that were the ancestors of today's tortoises, snakes, lizards, and crocodiles?

What was the common characteristic of the seemingly insignificant group of survivors that began to increase in numbers on the ground beneath the birds?

What was the first group of organisms that were able to split and replicate themselves as bacteria do?

What was the group of creatures that had bodies stiffened by an internal rod and understandably developed sense organs around their front end?

What group of creatures followed the insects onto the land and were the ancestors of today's tortoises, snakes, lizards, and crocodiles?

What was the group of creatures that dominated the waters of the world and developed fins equipped with muscles that enabled them to swim with speed and power?

What was the group of creatures that had their bodies stiffened by encasing it in bone and developed fins equipped with muscles that enabled them to swim with speed and power?

What was the group of creatures that developed hard protective skins which gave their bodies some rigidity?

What was the group of creatures that had warm, insulated bodies and were the first mammals?

Question 1

Answer 1

Question 2

Answer 2

Question 3

Answer 3

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