MCQ
First mammals appeared in the period:
- ATriassic
- BJurassic
- CCretaceous
- DTertiary
✓
Answer
- Triassic
Explanation:
Triassic period, in geologic time, the first period of the Mesozoic era. It began 252 million years ago.
Reptiles increased in diversity and number, and the first dinosaurs appeared during this period along with the appearance of first mammals.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
In the following human pedigree, the filled symbols represent the affected individuals. Identify the type of given pedigree.
Both autogamy and geitonogamy can be prevented in
Analogous organs arise due to:
Given below are two statements:
→Statement $I$: In prokaryotes, the positively charged DNA is held with some negatively charged proteins in a region called nucleoid.
Statement $II$: In eukaryotes, the negatively charged DNA is wrapped around the positively charged histone octamer to form nucleosome.
In the light of the above statements, choose the correct answer from the options given below:
Select the odd one w.r.t. ex-situ conservation.
The state which has named all its tourist resorts after birds is:
Induced abortion is
Which of the following is a partial root parasite?
Which variety of rice was patented by a $U.S.$ company even though the highest number of varieties of this rice is found in India ?
→Interleukin which is recently discovered, is a cure for: