Answer:
DNA technology and gene cloning are essential to the pharmaceutical industry and medicine. DNA technology is being used to help diagnose genetic diseases, such as sickle-cell disease and Huntington's disease.
Answer:
1) Stirring and pulverizing the soil before seeds are planted or removed as well as to loosen the soil in order to allow enough air into the soil.
2) Vitamin A, zinc supplementation and exclusive breastfeeding
3)Manure from horses, cows or cattle
4) Mechanical
Explanation:
A cultivator is a farm implement used for stirring and pulverizing the soil before seeds are planted or removed as well as to loosen the soil in order to allow enough air into the soil. This enables the crop to grow quicker. It is driven by a tractor and does more work than the harrow which is not tractor driven.
Nutrition-specific intervention is a programme by UNICEF to talk undernutrition in foetus as well as growing children. The nutrients specified are exclusive breastfeeding, vitamin A and zinc supplementation.
Manure is referred to as major component used to aid crop growth. It contains essential nutrients which are required by crops for growth and good health. Manure is natural and can be gotten from animal dung.
Seed drills are sowing machines used to sow seeds accurately at the precise depth and distance measured. It does an extra work of covering the soil as well as protecting the seeds from birds. Due to the fact that it is a machine, it saves time and labour as well as money.
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<h3>⇝ <u>Epidermis</u> :</h3>
Protective tissues includes epidermis & cork. Epidermis is basically a simple permanent tissue, protective in function. It forms one-cell-thick covering over all the parts of plant.
<h3>⇝ <u>Characteristics of Epidermis</u> : </h3>
- Epidermis is formed of living cells, arranged in a single layer.
- In aerial parts, epidermis is covered with a waterproof and noncellular waxy covering called cuticle.
- Cells form a continuous layer, but in leaves epidermis has small openings called stomata.
- Each stoma is guarded by a pair of bean-shaped guard cells which govern opening & closing of stomatal aperture.
<h3>⇝ <u>Functions of Epidermis</u> :</h3>
- Epidermis protects the underlying tissues from mechanical injury, chemicals & infection.
- Cuticle of epidermis protects against water loss & desiccation. It checks the rate of transpiration & evaporation and prevents wilting.
- Stomata in the epidermis of leaves help in gaseous exchange during respiration & photosynthesis.
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with this option given I don't think there is an odd one
