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Sliva [168]
3 years ago
12

How many continents and oceans does the Earth have?

Biology
1 answer:
ryzh [129]3 years ago
6 0

7 continents

5 oceans

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the wavelength of infrared is larger than the ultraviolet and all frequency is smaller.

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color blindness is a x-linked recessive disease. Under what circumstances will this condition manifest itself in a child
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Lana is studying the lumbar, or lower back, area of the body. She is trying to learn the names and locations of the organs
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gross anatomy, an anatomical region

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Anatomy can be grouped into gross anatomy and superficial anatomy. Gross anatomy is the study of structures that are visible to the human eye i.e. without the aid of a microscope. The anatomical regions are those regions in the body that are easily seen by the unaided eye.

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.What might happen to cells with DNA that has been damaged by an environmental influence such as UV light from the sun or a tann
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It can lead to melanoma or a time of skin cancer.

Explanation:

This is because UV radiation in sunlight can destroy the DNA by destroying the base pairing. UV light will cause two Thymine that are very closer to each other to join together to produce dimer. After which, The melanin-assisted process form lesions that is popularly called cylobutane pyrimidine dimers in DNA, which can result in mutations that cause melanoma which is a form of skin cancer

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Oxygen must dissolve into fluid lining alveoli prior to diffusing into our pulmonary capillaries but we cannot breathe water. Ex
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Answer:

The strong hydrogen bonds   in water made water stable and difficult to breakdown into constituent  oxygen and hydrogen atoms.  at a temprature less than 100 degree..

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Consequently, it will be difficult for the needed oxygen atoms to simply diffuse into the alveoli to reach the blood,Compare to its  molecular form  where its atoms awere held  by relatively week covalent bonds.

Besides the porosity    of the thin  alveolar endothelial   walls of 0.2 micrometer is   too small for the larger water molecules to pass through.

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