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Ask QuestionPosted by Saloni Thakur 5 years, 9 months ago
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Posted by Saloni Thakur 5 years, 9 months ago
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Yogita Ingle 5 years, 9 months ago
Aestivation is the mode of arrangement of sepals or petals in a floral bud with respect to the other members of the same whorl.
There are four main types of aestivation. They are as follows:
1. Valvate aestivation: Sepals or petals in a whorl just touch one another. They do not overlap one another.
2. Twisted aestivation: One margin of the appendage overlaps the margin of the next appendage. Such type of aestivation is seen in lady’s finger, china rose and cotton.
3. Imbricate aestivation: Margins of sepals or petals overlap one another but not in any particular direction. It is seen in Gulmohar and Cassia.
4. Vexillary aestivation: It is also known as Papilionaceous type of aestivation.
There are five petals. The largest petal (called standard) overlaps the two lateral petals (called wings) which further overlap the two smallest anterior petals (called keel).
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Yogita Ingle 5 years, 9 months ago
Physiotherapists help people affected by injury, illness or disability through movement and exercise, manual therapy, education and advice. They maintain health for people of all ages, helping patients to manage pain and prevent diseases.
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Yogita Ingle 5 years, 9 months ago
- Neural tissue exerts the greatest control over the body’s responsiveness to changing conditions.
- Neurons, the unit of neural system are excitable cells and the neuroglial cell which constitute the rest of the neural system protect and support neurons.
- When a neuron is suitably stimulated, an electrical disturbance is generated which swiftly travels along its plasma membrane.
- Arrival of the disturbance at the neuron’s endings, cause stimulation or inhibition of adjacent neurons and other cell.
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Yogita Ingle 5 years, 9 months ago
Outsourcing has emerged as a way of doing business due to global competitive pressures for higher quality products at lower costs, ever demanding customers and emerging technologies. Need for outsourcing can be understood from the benefits which are given below:
Focusing of Attention: Business firms are realizing the importance of focusing on core areas where they have distinct ability and core competence and contracting out the rest of the activities to their outsourcing partners. A business organization needs to decide its core areas and non-core areas. Once they outsource non-core areas, they can focus their attention on selected activities. It will increase efficiency and effectiveness.
Quest for Excellence: Outsourcing enables the firms to attain excellence in two ways: (a) By focusing on activities selected, their excellence in those activities increases. (b) They excel by extending their capabilities through contracting out the remaining activities to them who excel in them.
Cost Reduction: In the age of globalization, cost reduction is of vital importance to survive in the market. Division of labour not only enhances quality but also reduces cost. For example, India is preferred as an outsourcing destination because of cost factors.
Growth through alliance: When some activities are outsourced then these alliance partners invest for the outsourced activities. Business can be expanded by same amount of investible funds as now these funds are to be invested in limited number of activities.
Fillip to Economic Development: Outsourcing stimulates entrepreneurship, employment and exports in the host countries. For example, in India there has been remarkable growth in entrepreneurship, employment and exports that today India is an undisputed leader in software development and IT enable services. But outsourcing is not an unmixed blessing. It has its own limitations. Some of which are discussed below:
Confidentiality: When a business opts for outsourcing, it has to share a lot of vital information and knowledge. This information may be leaked by the outsourcing partner. It may be against the outsourcing firm. It is also possible that the outsourcing partner starts a business of same line after getting such information.
Ethical Concerns: Many a time, outsourcing makes use of child labour and violates labour laws to reduce costs. They also discriminate in wages on the basis of ***.
Sweat Shopping: A firm which goes in for outsourcing actually transfers ‘doing’ skills rather than ‘thinking’ skills. Therefore, they do not create skilled manpower in developing countries but just take maximum benefit of low cost labour by transferring non intellectual tasks.
Resentment in their Home Countries: Outsourcing is being disliked by people in developed countries because the jobs which they could get are being transferred to developing countries through outsourcing. The problem is still more severe if there is problem of unemployment in home country of outsourcing firm.
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Yogita Ingle 5 years, 9 months ago
Redox reactions have many applications in our daily life. The most common example is combustion; where in oxygen gets reduced while carbon gets oxidized like burning of fuels in automobiles etc. Second application is in batteries or electrochemical cells used in invertors and dry cells which use oxidation-reduction reactions to produce an electric current. Oxidation-reduction reactions are responsible for the spoiling of food. Rusting of iron is also an example of redox reaction. The Enzymes in our human body regulate oxidation-reduction reactions occuring inside the body.Photosynthesis and respiration both are oxidation-reduction or redox reactions.
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Yogita Ingle 5 years, 9 months ago
- Antacids are used to cure indigestion in a body.
- They are group of mild bases and have no toxic effects on body.
- They are basic in nature so reacts with excess acids in stomach and neutralise it.
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Yogita Ingle 5 years, 9 months ago
Mechanism of muscle contraction :
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