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Organisms And Populations

Question
CBSEENBI12002200
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Age of tree can be estimated by

  • Its height of girth

  • biomass

  • number of annual rings

  • the diameter of its heartwood

Solution

C.

number of annual rings

Age of tree can be estimated by a number of annual rings. The two kinds of woods that appear as alternate concentric rings; constitute an annual ring heartwood comprises dead elements with highly lignified walls that give mechanical support to the steam. The height and girth of a tree increase due to the activity of vascular cambium.

Some More Questions From Organisms and Populations Chapter

To live in groups is beneficial because :

Ants give information to their companions :

Population density is denoted by the symbol

The number of births during a given period in the
population that are added to the initial density is 

 :

The departure of a individual from a population is called :

In which interaction only one species is benefitted while the other species is neither harmed nor benefitted ?

Which of the following interaction both species suffer ?

In which of the following interaction both species are benefitted ?

Fill in the blanks with suitable words :

1. The optimal capacity of the organism to produce offspring is called........................

2. Rapid increase in human population is called........................

3. Mathematical expression of the growth of population is called........................

4. Yeast cells grown in a culture medium show........................growth curve.

5. Main cause of population explosion is........................

State true or false :

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