The idea that life orginates from pre-existing life is referred as
Options
(a) biogenesis theory (b) special creation theory (c) abiogenesis theory (d) extraterrestial theory
Correct Answer:
biogenesis theory
Explanation:
No explanation available. […]
Which of the following plants have not changed for several thousands of years?
Options
(a) Gnetum (b) Dryopteris (c) Gingko (d) Palms
Correct Answer:
Gingko
Explanation:
No explanation available. Be the first to […]
Which of the following chemical was likely to be absent at the time of origin of life?
Options
(a) oxygen (b) water (c) hydrogen (d) ammonia
Correct Answer:
oxygen
Explanation:
No explanation available. […]
Which of the following isotopes is used for finding the fossil age having more than 4500 years?
Options
(a) ²³⁸U (b) ¹⁴C (c) ³H (d) ²⁰⁶Pb
Correct Answer:
²³⁸U
Explanation:
No explanation available. […]
Mesozoic era is the era of
Options
(a) fishes (b) reptiles (c) birds (d) mammals
Correct Answer:
reptiles
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
Most fossils have been found in
Options
(a) black soil (b) lava flows (c) granite (d) sedimentary rocks
Correct Answer:
sedimentary rocks
Explanation:
No explanation available. Be the first to write the explanation […]
First organism to evolve on the earth were
Options
(a) saprotrophs (b) photoautotrophs (c) chemoautotrophs (d) chemoheterotrophs
Correct Answer:
chemoheterotrophs
Explanation:
No explanation available. Be the first to write the explanation for this […]
The abiogenisis occurred about how many billion years ago
Options
(a) 2.5 billion (b) 1.2 billion (c) 3.5 billion (d) 1.5 billion
Correct Answer:
3.5 billion
Explanation:
No explanation available. Be the first […]
The first life orginated
Options
(a) on land (b) in air (c) in water (d) all of these
Correct Answer:
in water
Explanation:
No explanation available. Be the first to write the explanation […]
Discovery of fossils of cyanobacteria indicates that life orginated sometime
Options
(a) prior to 4600 million years ago (b) between 4600 and 3600 million years ago (c) around 3600 million years ago (d) […]
2017 Copyright Doctor Dreams Training Academy