General Knowledge : General Science QUESTIONS AND ANSWERS :: part11 : 81 to 85
Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2024 examinations :
81.Which of the following is the correct sequence in which the given animal groups appeared on the earth during the course of evolution ? |
| Porifera-Annelida-Coelenterata-Protozoa |
| Protozoa-Coelenterata-Porifera-Annelida |
| Annelida-Porifera-Protozoa-Coelenterata |
| Protozoa-Porifera-Coelenterata-Annelida |
82.Which era is known as the Golden Age of Reptiles due to the dominance of Dinosaurs over all possible habitats on Earth ? |
| Precambrian |
| Mesozoic |
| Cenozoic |
| None of these |
83.The scientific study of ageing is known as |
| Etiology |
| Gerantology |
| Osteology |
| Teratology |
84.The first organisms on earth were |
| autotrophs |
| heterotrophs |
| saprotrophs |
| None of these |
85.Genetic variation arises by |
| recombination |
| mutation |
| chromosomal aberrations |
| All of these |
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