Advertisements
Advertisements
Question
Based on the table given below, identify the type of natural selection taking place.
| Size of the seeds | % of germination |
| Small | 75% |
| Medium | 15% |
| Large | 75% |
Solution
Disruptive selection generates a population with two extreme variants of a trait as the dominant phenotype. In disruptive selection, both extreme features are preferred.
The above chart outlines the disruptive type selection.
APPEARS IN
RELATED QUESTIONS
Mention any 'two' ecological services forthe benefit of mankind
Discuss the role of healthy ecosystem services as a pre-requisite for a wide range of economic, environmental and aesthetic goods and services
Answer the following question:
Why do Green plants start evolving CO2 instead of O2, at high temperatures?
Define the Standing crop
Answer the following question.
Mention four significant services that a healthy forest ecosystem provides.
Which of the following enzymes helps in fixing CO2 into malic acid in sorghum plant?
Seed dispersal in squirting cucumber occurs via ______.
Which of the following is NOT included in ecosystem services?
Out of the total proposed cost of various ecosystem services, the cost of climate regulations and habitat for wildlife is ______.
Given below are the features of Seed A and Seed B. Study them carefully and answer the question that follows.
| SEED A | Papery endosperm, swollen cotyledon, perisperm develops from nucellus, suspensor, haustoria substitute endosperm. |
| SEED B | Swollen endosperm, papery cotyledons or absent, perisperm does not develop from nucellus, suspensor and haustoria do not substitute endosperm. |
Identify the type of Seed A and Seed B. Cite one example of each of Seed A and Seed B.
