Determination of sex in living organisms
Determining male or female form of living organism through sexual reproduction is called as sex determination. Sex determination on a large scale is of two types- environmental, genetic and chromosome based.
sex determination
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Energy for us
Anything from which we can derive energy is called as a source of energy. Since all the life processes need energy, energy is most important for our survival.
Our body derives energy from the food we eat. Thus, the food we eat is the source of energy for our body. But this is not the whole story. We need energy for our growth and economic development as well.
The Limit of Tolerance of Environment
We have been hearing about environmental pollution, loss of biodiversity, energy crisis, and the sustainable environment since long. So many things have already been infused in school syllabi as well. But how many of us really apply in our real life the things about which we have read in our classes?
Study of Environment
Environment may be defined as ‘Complete range of various sets of external conditions comprising- physical, biological, and for human beings- cultural, economic and political conditions; in which human beings and other life forms exist in continuous interactions among themselves.
Forest – Fires in Uttarakhand and Himachal
Since October 1st to November 9th, a total of 92 incidents of forest-fires have been recorded that have burnt about 133.55 ha of forest in Uttarakhand.
Conservation of Wildlife
Conservation of species in their natural habitats- in areas where they occur under normal conditions is called in-situ conservation.
This type of conservation strategy protects the entire area. Such an area is protected and maintained to conserve all the known or unknown species inhabiting it.
In this type of conservation, species are not isolated or provided with health care, food, or mating facilities. Only factors detrimental to species’ existence and development are eliminated in this conservation strategy. Human interference, such as hunting, cutting down trees, collecting firewood, etc., is completely banned in such areas.
Urban Environment Facing lots of Problems …
As per an assessment, about 600 million people inhabited urban areas of the world in the year 1950. But now urban areas have been recorded to be inhabited by about half of the total population.
Palash-The State Flower of Jharkhand in India
Palash or Butea monosperma is an important tree of taxonomic family Fabaceae which is native to tropical and sub-tropical India. It is also found in Pakistan, Bangladesh, Nepal, and Srilanka etc.
Important aspects of Crop Improvement & New Crop Varieties
Biotechnology in Agriculture: Applications, Techniques, and Benefits The scientific knowledge which is applied in practical ways in industry for the…
Eat Carrot to correct Night Vision
The carrot which is taxonomically known as Daucus Curota sub species sativus is an important plant. It is typically orange or blood red in colour. However, it is found in many colours like white, red, yellow etc. All of these are domesticated forms of the wild carrot.
Questions and Answers on Reproduction Biology Class X
What is the importance of DNA copying in reproduction?
The increasing Human Population is putting immense pressure on Resources
A population is a group of individuals of a particular species occupying a particular area at a specific time.
