Download App

Evolution — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYEvolution3 Marks
Question
Mention the charateristics of the first ape man Australopithecus africanus.
✓

Answer

Australopithecus africanus was about 1.5 metres tall and had human as well as ape characters. It was with bipedal locomotion, omnivorous diet and had erect posture. It had human like teeth but it had more of an ape brain than a human brain. Its brain capacity was about 500cc, similar to that of an ape Australopithecus africanus existed about million year ago and gave rise to Homo habits about two million years ago.

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 "3 Marks Question" from Evolution→Evolution — all question types→BIOLOGY STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Practise drawing various animals and plants.
→
Explain with the help of an example the relationship between restriction endonuclease and a palindromic nucleotide sequence.
→
What is called antibody? Describe the structure of an antibody molecule.
→
Why should we conserve biodiversity? How can we do it?

OR

Why should we conserve biodiversity? Why is it a moral as well as social duty to contribute towards its protection?

→
Both Haemophilia and Thalassemia are blood related disorders in humans. Write their causes and the difference between the two. Name the category of genetic disorder they both come under.
→
  1. In a human genome, which one of the chromosomes has the most genes and which one has the fewest?
  2. Scientists have identified about 1.4 million single nucleotide polymorphs in human genome. How is the information of their existence going to help the scientists?
→
Name the genes responsible for making Bt cotton plants resistant to bollworm attack. How do such plants attain resistance against bollworm attacks? Explain.
→
Name and describe any three causes of biodiversity losses.
→
What do you mean by semi-conservative replication? Describe the experiment conducted by Matthew Meselson and Franklin Stahl to prove that semi-conservative replication occurs in DNA. Draw a diagram of the semi-conservative DNA replication model.###What is the semi-conservative replication of DNA? Who proved this? Explain this experiment in detail.
→
Why is predation required in a community of different organisms?
→