English

Explain any three important characteristics of population.

Advertisements
Advertisements

Question

Explain any three important characteristics of population.

Short/Brief Note
Advertisements

Solution

Some important characteristics of population are:

  1. Population density: Density of a population is the total number of individuals in that population present per unit area at a specific time. 
  2. Natality: Natality is the birth rate of a population. 
  3. Mortality: Mortality is the death rate of a population.
shaalaa.com
  Is there an error in this question or solution?
Chapter 13: Organisms and Populations - Short Answer 2

APPEARS IN

SCERT Maharashtra Biology [English] 12 Standard HSC
Chapter 13 Organisms and Populations
Short Answer 2 | Q 3

RELATED QUESTIONS

Give one example of interspecific competition.


Match the following and choose the correct combination from the options given below.

Column I Column II
Mutualism Lion and deer
Commensalism Round worm and man
Parasitism Birds compete with squirrels for nuts
Competition Sea anemone on hermit crab
Predation Barnacles attached to Whales

Mycorrhizae are the example of ______.


In a pond, we see plants which are free-floating; rooted–submerged; rooted emergent; rooted with floating leaves; Write the type of plant against the following examples.

  Plant Name Type
a. Hydrilla ______
b. Typha ______
c. Nymphaea ______
d. Lemna ______
e. Vallisneria ______

Give one example for the following type.

Phytophagous animal


Give one example for the following type.

Chemical defense agent


Observe the set of 4 figures A, B, C and D and, answer the following questions

  1. Which one of the figures shows mutualism?
  2. What kind of association is shown in D?
  3. Name the organisms and the association in C.
  4. What role is the insect performing in B?

Fig. (A)

Fig. (B)

Fig. (C)

Fig. (D)

Give one example of commensalism.


Association between clown fish and sea anemone is ______.


Statement I: Gause’s competitive exclusion principle states that two closely related species competing for different resources cannot exist indefinitely.

Statement II: According to Gause’s principle, during competition, the inferior will be eliminated. This may be true if resources are limiting.

In the light of the above statements, choose the correct answer from the options given below:


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×