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Komok [63]
3 years ago
13

Question 19

Biology
1 answer:
Elenna [48]3 years ago
8 0

Answer:

A compound formed in solution from the negative ion of an acid and the positive ion of a base is a salt. Hence the answer is option A  

Explanation:

Salt is a product which is formed when a base is reacted with an acid. This reaction is also known as neutralization reaction because the base neutralizes the acid and the acid neutralizer base. By the course of action of these two salt is formed which is sour in taste.

This salt gets deposited in the base of the container as a form of precipitation. The salt can be of different color depending upon the color of base and acid which was used during the chemical reaction.

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What kind of waves are present during an earthquake? ...
Aleksandr [31]

Answer:

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2. As the combustible materials burn, some of the chemical energy is transformed into heat energy, and some is transformed into light energy. Light energy, also known as radiation or electromagnetic energy, is a type of kinetic energy that takes the form of visible light waves, such as the light from a match

3. Newton's second law of motion is F = ma, or force is equal to mass times acceleration.

4. Answer: Refraction is the bending of light (it also happens with sound, water, and other waves) as it passes from one transparent substance into another. This bending by refraction makes it possible for us to have lenses, magnifying glasses, prisms, and rainbows. Explanation: Refraction.

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7 0
3 years ago
Refracting telescopes got their name because they refract or ?
pychu [463]
<span>A Telescope That Uses A Converging Lens To Collect Light</span>
3 0
3 years ago
Describe the functions of the four photoreceptor proteins in human vision.
VLD [36.1K]

Answer:

In human vision, the cone visual opsins are grouped into four photoreceptor protein families LWS, SWS1, SWS2, RH2 .

  • SWS1: produce pigments sensitive to very short wavelengths, UV-violet, 360-450 nm.

  • SWS2: produce pigments sensitive to short wavelengths, blue, 450-495 nm

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Explanation:

Photoreceptor proteins are light-sensitive proteins that mediate light-induced signal transduction, thus they are involved in the sensing and response to light in a variety of organisms.

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This photoreceptor proteins are located at the cone photoreceptor cells and are responsible of photopic vision.

For scotopic vision, rhodopsin is responsible. Rhodopsins are the visual pigments (visual purple) of the rod photoreceptor cell in the retina. They are responsible of human vision in dim light, as it contains a sensory protein that converts light into an electric signal.  

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Tom [10]

Answer:

Explanation:

Pathogenicity: is a quality attributed to the microorganisms that can cause a disease. It can be defined as the capacity or the degree in which microorganisms can cause a certain sickness. Virulence is the degree of pathogenicity of the microorganisms.

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4 years ago
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