Explanation

The blood vessels that carry oxygenated blood away from the heart to the body are called arteries

The largest artery is the aorta, which branches out into smaller arteries that distribute oxygenated blood to different parts of the body. 

Explanation

Oxalic acid is used in removing ink stain from clothes as it is helpful in the reaction of insoluble iron to the soluble complex ion.

MUG 11-12-2022

Explanation

Vaccines are made from:

• Weakened or killed bacteria or viruses
• Small pieces of bacteria or viruses, like proteins or sugars
• Genetic material (DNA or RNA) from bacteria or viruses

These components stimulate an immune response, helping the body build immunity against specific diseases.

Explanation

The loudness of a sound depends on the Amplitude of the vibration

 Loudness is proportional to the square of the amplitude

if the amplitude is increased by three times, the loudness also increases by nine times.

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ND4-12-2022

Explanation

 Ecology is the scientific study that is related to the environment which includes both living and non-living factors. Histology is the scientific and clinical study of cells, organs and tissues based on the observation under the surface of microscope.

Explanation

In birds, gas exchange occurs in the lungs as air moves through small tubes (parabronchi) in one direction; in mammals, air flows tidally into and out of the alveoli.

Explanation

Explanation

Venus travels around the sun once every 225 Earth days but it rotates clockwise once every 243 days.

Venus is the brightest planet.

Explanation

Both plant and animal cells are eukaryotic.

Animal cells have centrosomes , whereas Plant cells have a cell wall.

Explanation

Pneumonia is an infection that inflames the air sacs in one or both lungs.

The air sacs may fill with fluid or pus (purulent material), causing cough with phlegm or pus, fever, chills, and difficulty breathing.