Download App

Organisms and Populations — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYOrganisms and Populations1 Mark
MCQ
Population density means:
  • A
    The number of human per unit area
  • B
    The number of human in a unit area at a specific time
  • C
    The concentration of human population at a place
  • D
    None of above
✓

Answer

  1. The number of human in a unit area at a specific time

Explanation:

Population density of a species is the number of individual of a species per unit area or volume e.g.,number of animals per square km.

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 Organisms and Populations→Organisms and Populations — all question types→BIOLOGY STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Most primitive living mammals which provide an evidence of organic evolution from geographical distribution are found in:
→
Caffeine, cocaine and amphetamine are
→
In monoecious plant like castor and maize
→
Which of the following pair is a sedimen- tary type of biogeochemical cycle? 
→
The RNA polymerase holoenzyme transcribes:
    →
    Penicillium produces :
    →
    In an experiment on pea plant, pure plants with yellow round seeds $(YYRR)$ were crossed with plants producing green wrinkled seeds $(yyrr)$. What will be phenotypic ratio of $F_1$ progeny ?
    →
    The genetic codes of arginine are:
    →
    Plant community development is termed as:
    →
    If Meselson and Stahl's experiment is continued for four generations in bacteria, the ratio of 15N/15N : 15N/14N : 14N/14N containing DNA in the fourth generation would be:
    →