Download App

STD 12 - 6. evolution — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 6. evolution1 Mark
MCQ
In which era mammals and birds evolved
  • A
    Mesozoic
  • ✓
    Cenozoic
  • C
    Palaeozoic
  • D
    Procambrian
✓

Answer

Correct option: B.
Cenozoic
b
It's Obvious

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (0.5 Marks)" from STD 12 - 6. evolution→STD 12 - 6. evolution — all question types→BIOLOGY STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Statins are obtained from:
→
Which of the following abnormalities is due to autosomal dominant mutation?
→
Which part of ovary in mammals acts as an endocrine gland after ovulation?
→
An example of endomycorrhiza is
→
The DNA site where DNA-dependent RNA polymerase binds for transcription, is called.
→
Of the several gases in atmosphere, plant life mostly depends upon
→
Thick cuticle, sunken and scotoactive stomata, $CAM$ photosynthesis and conversion of leaves into spines are some of the important characters of
→
$X$ - The oviducts, uterus and vagina constitute the female accessory ducts

$Y$ - The male sex accessory ducts includes vasa efferentia, epididymis and vas deferens while rete testis is an external genital organ

→
Among the human ancestors the brain size was more than 1000 cc in:
→
Match the columns and choose the correct. option.
Column $- I$ Column $- II$
$(a)$ Allergy $(1)$ Malaria
$(b)$ Widal test $(2)\; AIDS$
$(c)\; ELISA$ test $(3)$ Typhoid fever
$(d)$ Haemozoin $(4)\; IgE$ antibodies
→