What may have occurred to prevent species that are of the same grade from also belonging to the same clade?

TLS Online TPP Program

#Question id: 18223

#Unit 11. Evolution and Behavior

The origin of indirect evidence of life, no recognizable fossils except bacteria (microfossils) was during which geological eras?

TLS Online TPP Program

#Question id: 18224

#Unit 11. Evolution and Behavior

Proterozoic era characterized by___

a) Origin of life

b) Fossils of blue green algae

c) Most invertebrate evolved

d) First gymnosperm

e) Abundance of marine algae

TLS Online TPP Program

#Question id: 18590

#Unit 11. Evolution and Behavior

Origin of life starts from which geological time period?

TLS Online TPP Program

#Question id: 18591

#Unit 11. Evolution and Behavior

First green plants and fungi appeared on the land during which period?

TLS Online TPP Program

#Question id: 18592

#Unit 11. Evolution and Behavior

Flowering plant first appeared in___

TLS Online TPP Program

#Question id: 18593

#Unit 11. Evolution and Behavior

Some important events in the history of life on Earth are given below.

A. First dinosaurs appeared.

B. First reptiles appeared.

C. First insect fossils appeared.

D. First toothed birds appearance.

E. First wingless insect appeared.

F. Mammals like reptile arise

Match the above with the geological time periods and choose the correct combination,