Download App

STD 12 - 6. evolution — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 6. evolution1 Mark
MCQ
Which of the following had the smallest brain capacity ?
  • A
    Homo neanderthalensis
  • ✓
    Homo habilis
  • C
    Homo erectus
  • D
    Homo sapiens
✓

Answer

Correct option: B.
Homo habilis
b
(b) : The brain capacity gradually increased from early human ancestors to modern man. Homo habilis had $650- 800cc$ brain capacity which increased around 900cc in Homo erectus. The Neanderthal man (Homo neanderthalensis) had $1400cc$ brain capacity which evolved to around $1450cc$ in Homo sapiens.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (0.5 Marks)" from STD 12 - 6. evolution→STD 12 - 6. evolution — all question types→BIOLOGY STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Where is maximum biodiversity found?
→
The ferns in which the entire sporangium develops from a single superficial cell of the saprophyte are known as:
→
$A$ : Pyramid of biomass is always upright for tree ecosystem.

$R$ : Total biomass of a tree in a specific area is more than that of herbivores.

→
Which cells come earliest in the sequence of sperm production?
→
Given below are two statements:

Statement $I$ : Bt toxins are insect group specific and coded by a gene cry $IAc$.

Statement $II$ : Bt toxin exists as inactive protoxin in B. thuringiensis. However, after ingestion by the insect the inactive protoxin gets converted into active form due to acidic $\mathrm{pH}$ of the insect gut.

In the light of the above statements, choose the correct answer from the options given below:

→
Test tube baby is the one
→
Filiform apparatus are
→
Myrmecophily is a beneficial association between a flowering plant and:
→
Genetic drift operates in
→
Mutation rates are affected by:
→