Evolution - Online Test
Q1. Which of the following is an example of environmental variation?
Answer : Option A
Explaination / Solution:
Environmental variation is the change in traits due to environmental factors like temperature, humidity, soil water precipitation etc. Dying hair colour blue or any other colour is environmental variation.
Q2. What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors?
Answer : Option A
Explaination / Solution:
The most significant trend in the evolution of modern man from his ancestors is the increasing cranial cavity. Bony cavity inside which bone is located is called cranium. Cranial capacity increased from 900cc to 1400cc in course of evolution.
Q3. The extinct human who lived 1,00,000 to 40,000 years ago, in Europe, Asia and parts of Africa, with short stature, heavy eye brows, retreating foreheads, large jaws with heavy teeth, stocky bodies, a lumbering gait and stooped posture was
Answer : Option C
Explaination / Solution:
Neanderthals are recognisably human but have distinctive facial features and a stocky build that were evolutionary adaptations to cold, dry environments.
This species lived between 28,000 and 300,000 years ago.
Key physical features :
- Body size and shape: Neanderthals were generally shorter and had more robust skeletons and muscular bodies than modern humans.
- Brain size was larger than the average modern human brain and averaged 1500 cubic centimetres.
- Skull : distinctive skull shape that was long and low, with a rounded brain case. mid-face region showed a characteristic forward projection (this resulted in a face that looked like it had been ‘pulled’ forward by the nose). orbits (eye sockets) were large and rounded. Nose was broad and very large
- Jaws and teeth : jaws were larger and more robust than those of modern humans and had a gap called the retromolar space, behind the third molars (wisdom teeth) at the back of the jaw. jaw lacked the projecting bony chin that is found in Homo sapiens. teeth were larger than those of modern humans.
Q4. The difference between Homo sapiens and the Homo erectus was
Answer : Option B
Explaination / Solution:
Home sapiens and Homo erectus in differ in their size of brain capacity. The size of brain of Homo erectus was smaller than Homo sapiens.
The average brain size of Homo erectus is estimated to have been roughly 900 cubic centimeters whereas the average brain size capof Homo sapiens is roughly 1300 cubic centimeters.
Q5. The first human-like creature being the hominid was called
Answer : Option A
Explaination / Solution:
The first human like creature being hominid was called Homo habilis. Their brain capacity were about 650-800cc and probably do not eat meat.
Louis Leakey, the British-Kenyan paleoanthropologist who was the first to suggest the existence of H. habilis, and his wife, Mary Leakey, found the first trace of H. habilis in 1955: two hominin teeth.
Q6. Which of the following sentences is true about the evolutionary process?
Answer : Option A
Explaination / Solution:
Evolutionary process is totally different from human progress.
Evolution leads to creation of complex organism. It does not lead to creation of better organism. For e.g, we are not better than the amoeba, we are just complex than amoeba.
There is no real progress in the idea of evolution which is biologically controlled to creation of variation.
Q7. Homo sapiens arose in Africa and moved across continents and developed into distinct races during
Answer : Option B
Explaination / Solution:
Homo sapiens arose in Africa and moved across continentsand developed into distinct races. During ice age between 75,000-10,000 years ago modern Homo sapiens arose. Pre-historic cave art developed about 18,000 years ago. Agriculture came around 10,000 years back and human settlements started.
Q8. Modern Homo sapiens arose during ice age between
Answer : Option B
Explaination / Solution:
Homo sapiens arose in Africa and moved across continentsand developed into distinct races. During ice age between 75,000-10,000 years ago modern Homo sapiens arose.
Q9. Human settlement started around 10, 000 years ago due to starting of
Answer : Option D
Explaination / Solution:
Agriculture came around 10,000 years back and human settlements started. After starting of agriculture, the human civilization started the grows and decline many times.
Q10. Common origin of man and chimpanzee is best shown by
Answer : Option D
Explaination / Solution:
Common origin of man and chimpanzee is best shown by chromosomes. Both human beings and chimpanzee shows similar kinds of chromosome in terms of number and size.
