Organisms and Populations — practice questions
18 curated practice questions from Organisms and Populations (Biology Class 12, CBSE) — 18 easy. Every question includes the final answer free; step-by-step worked solutions with a free account.
- Which of the following statements regarding the estimates of number of species found on earth is not correct?
- Introduction of alien species into new area poses a threat to extinction of indigenous species due to
- Read the given statements and select the correct option. Statement 1 : Physiological capacity of organisms to produce…
- On a logarithmic scale, the species area relationship is a straight line described by the equation log S = log C + Z…
- The diversity of organisms sharing the same habitat or community is termed as
- Which of the below mentioned regions exhibit less seasonal variations?
- Species diversity _____ as we move away from the______ towards ______.
- Certain characteristic demographic features of developing countries are
- Which of the following is a reason for the greater biological diversity of tropical regions?
- An exotic species that is introduced to a new area, spreads rapidly and eliminates native species is called
- Identify the groups of organisms marked A and B in the given pie diagram representing the proportionate number of…
- Species diversity ____ as one moves from high to low altitudes.
- Identify different types of diversity denoted by 1, 2, 3 in the given figure.
- Given pie diagram represents the proportionate number of species of major groups of invertebrates. Identify the groups…
- Which of the following is not an invasive alien species in the Indian context?
- India is one of the 12 megadiversity centres of the world and is being divided into ____ biogeographical regions.
- Lantana , Eichhornia and African catfish are
- Which option correctly describes the equations for curves A and B, in the given graph of species - area relationship?