Important Processes of Reproduction
When both the ovaries are fully mature, they alternatively produce ova at the interval of 28 days. Release of ovum into the uterus through the fallopian tube is called as ovulation.
reproduction
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Reproduction in Human Being
In human beings reproduction takes place through the activities of male and female reproductive organs. To understand this, it is essential to study the structure of male and female reproductive systems separately.
Questions and Answers on Reproduction Biology Class X
What is the importance of DNA copying in reproduction?
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.
Reproduction and Variations
Living beings develop their population through reproduction. But reproduction is the process through which different traits appear in living beings. Variation is essential for evolution
Flowers and Flower Sellers
Flowers are most beautiful and attractive parts of a plant. These contain reproductive structures- male and female. Flowers containing any one of these structures are known as unisexual whereas flowers containing both the reproductive structures are known as bisexual.
Makar Sankranti: Cultural and Religious Significance
Sankranti or Solstice means: moving from one place to the other or meeting with another. When sun enters from one rashi o the other rashi, it is called as Sankranti.
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.
Overpopulation and its impact
A group of individuals of a particular species occupying a particular area at specific time is called as population. A species is a group of similar type of organisms that can interbreed under natural conditions. The interbreeding organisms of a species produce new organisms and finally result into the growth of population. This is true for all the life forms including human beings.
Hazardous Waste- Handling and Management
In India, a Hazardous Substances Management Division has been constituted as a nodal point within the Ministry of Environment and Forest. This nodal agency is responsible for Planning, over-seeing and implementing the policies and programmes on management of hazardous substances and Chemical Emergencies.
Modern Agriculture and Monoculture
More than half of the population of the world comprises farmers. These farmers know that maintaining and conserving natural resources are very important to sustain their lives. However, the demand of more and more food due to the exploding population and higher expectations for comfort and wealth enforces these farmers to exploit more and more of the natural resources through the application of modern technology. The agriculture based on the latest farm machinery, hybrid and high-yielding crop varieties and agrochemicals is called as modern agriculture. Under the changing trends of modern agriculture, the difficult situation of maintaining and conserving natural resources is being faced the world over in the agriculture sector.
