Photo AI
Complete the sentence by putting a cross (X) in the box next to your answer - Edexcel - GCSE Biology - Question 4 - 2014 - Paper 1
Question 4
Complete the sentence by putting a cross (X) in the box next to your answer. The species which is thought to have inhabited the Earth for the longest period of time... show full transcript
Worked Solution & Example Answer:Complete the sentence by putting a cross (X) in the box next to your answer - Edexcel - GCSE Biology - Question 4 - 2014 - Paper 1
Step 1
Complete the sentence by putting a cross (X) in the box next to your answer.
Answer
The species which is thought to have inhabited the Earth for the longest period of time is
A Australopithecus afarensis. This species is known to have existed approximately 5 million years ago, which is longer than the others listed.
Step 2
Step 3
Describe the methods scientists may have used to identify the skull as belonging to the species Homo erectus.
Answer
To identify the skull as belonging to the species Homo erectus, scientists may have used several methods:
-
Morphological Analysis: They would compare the size and shape of the skull with known Homo erectus fossils to identify specific features unique to this species, such as the brow ridge and skull capacity.
-
Dating Techniques: Radiometric dating methods like carbon dating could help determine the age of the skull, placing it in the range known for Homo erectus.
-
Comparative Anatomy: They might study the features of the skull in relation to other hominin species, assessing similarities and distinctions in anatomy.
-
Genetic Analysis: If DNA is available, molecular methods could link the skull to Homo erectus through genetic markers.