Question

(a) Write two differences between Homo erectus and Homo habilis.

(b) Rearrange the following from early to late geologic periods: Carboniferous, Silurian, Jurassic.

Answer 1

(a) Homo erectus was the fossil that had evolved from Homo habilis.

Homo habilis	Homo erectus
Its fossils were found in Africa about 1.5–2 mya.	It has also been found in Europe and Africa. It existed about 1.5 mya.
Their brain was large and was about 650–800 cc.	The brain of Homo erectus was large (about 900 cc).
They also shaped stones into tools and used them for chopping, pounding, cutting, etc.	The stone tools were more advanced than those by Homo habilis.

(b) The correct sequence from early to late geological period is: 

Silurian period → Carboniferous period → Jurassic period