Modes of Reproduction
Two organisms- male and female are essential for sexual reproduction. Now let us study some basic methods of reproduction in single organisms.
asexual
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Amazing world of animals- II
Animals are of different types and varieties. The world of animals is most amazing
KHEKSA- The Divine Vegetable
Kheksa is taxonomically known as Momordica dioica. It is commonly known as Kheksa, Spiny gourd, bristly Balsam pear, and Prickly carolaho, Kantola etc. It belongs to the family Cucurbitaceae.
What is Ecosystem? What are its components?
The environment of our earth has a number of life zones that support birth and development of all types of organisms.
All the life zones of the earth are collectively called as Biosphere.
The biosphere vertically extends into the atmosphere up to about 10 km and downwards into the oceans up to a depth of about6.9 km.
Working Time and Leisure Time: the Basic Concepts
Working time is the time when a person remains busy in doing some work. It may be the part of his daily routine when he has to do something either assigned by an organisation or by his own plan of work.
World Water Week 2020 – at Home
World Water Week Stockholm is celebrated every year from 23 to 28 Aug. every year. Due to pandemic covid-19 it is taking place from 24 to 28 Aug. this year with a theme- World Water Week at Home.
What are Environment and Environmental Science?
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.
Gobar Gas Plant in Barsana generates 300 units per day
The engineer couple of Chandigarh, Punjab has established a biogas plant in Barsana. From this plant about 300 unit electricity is generated per day. It is through this electricity that fourteen tube wells are run in the Goshalas.
Dangerous Impact of Breaking of Mountains
Landslides are very common in rainy season. Rains caused serious conditions during previous some weeks this year in many villages of Maharashtra. Many of these villages that were located in the laps of mountains vanished within no time.
Positive and Negative Interdependence among Organisms in Ecosystems
Interdependence between two species through which individuals of either one or both species benefit is called positive interdependence. The benefits to the individual of any species through this relationship may be continuous or transitory, obligate or facultative. Both partners in this type of relationship may be in close contact; one may be inside some specific area or attached to the surface of the other’s body. Positive interdependence is divided into three major types: mutualism, Commensalism, and proto-cooperation.
Technological Models
Recently, it has been found that Photo Voltaic Cells cannot be popularly used for power generation on large scales. However, our scientists have discovered that the alignment of Carbon Nano Tube with the polymer composites substrate would give very high efficiency in Photo Voltaic Conversion.
