EVS Answer the following in one sentence

Apes are somewhat like humans in appearance.

‘Primitive’ means ‘the first’.

The first human species is called the ‘primitive man’.

Some ape species found in grasslands were forced to move around on ground. These species evolved gradually and in time gave rise to human species.

Apes mostly lived on trees.

Mammals are the most evolved animals among vertebrates.

Animals which crawl are called Reptiles. For example: Snake

Living organisms that live only in water are called ‘Aquatic animals’. For example Fish

Animals which live in water and also on land are called ‘Amphibians’. For example: Frog

Animals which have a backbone are called vertebrates. For example: A cow

Animals without a backbone are called ‘invertebrates’. For example: a snail.

Unicellular organisms gave rise to multicellular organisms which in turn gradually evolved into various classes of plants and animals.

Fossils of dinosaurs with wings have been discovered. Hence, it is supposed that some species of two-legged and winged dinosaurs evolved into birds.

Some sudden natural disaster or environmental change is believed to be responsible for the extinction of dinosaurs.

Dinosaur means a ‘terrible lizard’.

The species that cannot adapt to environmental changes become extinct in the process of evolution

Species which are capable of adapting to environmental changes are able to survive.

The first scientist to give us a systematic explanation of the concept of evolution was Charles Darwin

During evolution, a new species with characteristics different from the original may be created. Sometimes the original species becomes extinct.

Over a period of time, these internal changes become inherited characteristics seen in all generations.

In the process of survival, by adapting to environmental changes, certain internal physical changes occur in some animals of a species.

Evolution means a gradual and continuous change

The first human appeared on the African continent.

Amphibians live in water and also on land.