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Ask QuestionPosted by Tejashwini Devendra 5 years, 4 months ago
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Tejashwini Devendra 5 years, 4 months ago
Posted by Prinka Kumari 5 years, 4 months ago
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Meghna Thapar 5 years, 4 months ago
A female ovulate one egg per month, usually. This is the single egg that makes it through the whole ovulatory process: the egg follicle is activated, the egg grows and matures, and then—once it reaches maturation—it breaks free from the ovary and begins on its journey down the Fallopian tubes.
Posted by Satwata Banerjee 5 years, 4 months ago
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Jd Chouhan 5 years, 4 months ago
Posted by Khushboo Khushboo 5 years, 4 months ago
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Yogita Ingle 5 years, 4 months ago
(i) Juvenile phase. All organisms have to reach a certain stage of growth and maturity in their life, before they can reproduce sexually. This period of growth is called juvenile phase or vegetative phase (term used in plants).
(ii) Reproductive phase. Reproductive stage in plants is represented by appearance of flowers. In animals the end of juvenile phase is indicated by many of them showing morphological and physiological changes prior to active reproductive behaviour
Posted by Mr. Singh 5 years, 4 months ago
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Shikha Singh 5 years, 4 months ago
Posted by Vishal Potla 5 years, 4 months ago
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Yogita Ingle 5 years, 4 months ago
Function of Heart
The heart performs the following important functions:
- The primary function of the heart is to pump blood throughout the body.
- It supplies oxygen and nutrients to the tissues and removes carbon dioxide and wastes from the blood.
- It also helps to maintain adequate blood pressure throughout the body.
The heart functions in the following ways:
- The arteries receive oxygenated blood from the heart and supply it throughout the body. Whereas, the veins carry the deoxygenated blood form all the body parts to the heart for oxygenation.
- The right atrium receives blood from the veins and pumps it to the right ventricle.
- The right ventricle pumps the blood received from the right atrium to the lungs.
- The left atrium receives oxygenated blood from the lungs and pumps it to the left ventricle.
- The left ventricle pumps the oxygenated blood throughout the body.
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Yogita Ingle 5 years, 4 months ago
Chorionic placenta: It occurs in primates (man and apes) and is formed only by chorion. Allantois remains small, burrows into body stalk (umbilical cord) and does not reach chorion. However, its mesoderm and blood vessels grow upto chorion whose villi enter the uterine crypts forming chorionic placenta.
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? ? 5 years, 4 months ago
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Riya Rana 5 years, 4 months ago
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Umacharan Das 5 years, 4 months ago
Offcourse analogus organs has same functions and different origin and structure.
e. g. Wings of birds and wings of an insect. Although the wings in both has common function I. e. Flying but by structur and origin the wings of birds are due to modification of there forelimb where as the wings of insect are due to modificaton of the skin.
These explanation says that both of them had a single common ancestry in the phase of evolution.
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Rohit Krishna 5 years, 4 months ago
Posted by Mayank Sharma 5 years, 4 months ago
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Yogita Ingle 5 years, 4 months ago
- The black soil area in the peninsular plateau is called the Deccan Trap.
- This is formed by volcanic activities, so the rocks are igneous.
- These rocks have been denuded over time and are responsible for the formation of the black soil. Due to continuous flow of lava an extensive lava plateau has been formed known as Deccan Trap.
- The Aravalis lie on the western and north-western margins of the peninsular plateau.
- These are highly eroded hills and are found as broken hills.
Posted by Ravi Ravi 5 years, 4 months ago
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Raksha Tiwari 5 years, 4 months ago
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Yogita Ingle 5 years, 4 months ago
Microscopic organisms mean that a microscope is required to see them, due to their tiny size.
Heterotrophic refers to the method in which they obtain their nutrition. This means they cannot synthesize their own food but consume other organisms for nutrition.
Unicellular refers to the number of cells which make up the organism, and is often a clue to their reproduction, as most unicellular organisms reproduce asexually.
Uninucelate refers to the number of nuclei contained with the organisms.
Posted by Varuni Kulkarni 5 years, 4 months ago
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Gaurav Seth 5 years, 4 months ago
- Conformers are those organisms which cannot maintain their constant internal temperature hence they migrate to locations which can provide suitable environment for the survival of these organisms.
- Regulators are those organisms which can maintain their constant internal temperature. These organisms can adapt to survive under unfavorable environmental conditions. These do not migrate to distant locations for temperature regulation.
- Conformers are not evolved to become regulators because the body surface of these organisms was small ans the thermoregulation is an energy expensive process as heat loss and heat gain is a function of the surface area of the organism.
- As the conformers were not able evolve themselves the regulators evolved and developed with an ability to regulate their internal body temperature.
Posted by Susma Chettri 5 years, 4 months ago
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Meghna Thapar 5 years, 3 months ago
Women can ovulate more than once a month. Women may ovulate more than once a month, suggests a Canadian study that overturns conventional views on the human menstrual cycle. ... A growth wave of 15 to 20 egg-carrying cells called follicles occurs before ovulation. One follicle will become dominant while the others die off. A woman should not ovulate more than once during each cycle. ... Multiple ovulation is another phenomenon that can occur and is when two or more eggs are released in a single cycle. The eggs are released during one 24 hour period and are responsible for the birth of fraternal twins.
Posted by Priyadarsini Mohanta 5 years, 4 months ago
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Gaurav Seth 5 years, 4 months ago
The correct sequence of parts in an ovule are
Egg - embryo sac - nucellus - integument
(Inner) (Outer)
Posted by Rohit Krishna 5 years, 4 months ago
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Anushka Verma 5 years, 4 months ago
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Yogita Ingle 5 years, 4 months ago
Endosperm
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