Download App

Organisms and Populations — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYOrganisms and Populations2 Marks
Question
Differentiate between population size and population density.
✓

Answer

Population size
Population density
Population size refers to the number of individuals of a species in a given area at a given time.
Population density Refers to the number of individuals of a species per unit area at a given time.

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 "2 Marks Questions" from Organisms and Populations→Organisms and Populations — all question types→BIOLOGY STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Name and explain two physical barriers that provide innate immunity in humans.
→
What is meant by gene therapy?
→
Differentiate between in situ and ex situ approaches of conservation of biodiversity.
→
Mention one significant difference between ontogeny and phylogeny.
→
Explain the relationship between CFC's and Ozone in the stratosphere.
→
Zygote forms the major link between one generation and those of the next generation organism. What is the fate of zygote in organisms which show:
Diplontic life cycle.
→
Why are papaya and date palm plants said to be dioecious whereas cucurbits and coconut palms monoecious, in spite of all of them bearing unisexual flowers?
→
How are the consecutive nucleotides linked together in a polynucleotide strands?
→
Mention one application for each of the following:
  1. Passive immunisation.
  2. Antihistamine.
  3. Colostrum.
  4. Cytokinin-barrier.
→
(i) The human male ejaculates about 200 to 300 million sperm during a coitus, however the ovum is fertilized by only one sperm. How does the ovum block the entry of additional sperms?
(ii) All copulations will not lead to fertilization. Why?
→