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Alchen [17]
3 years ago
5

Compare and contrast visible light and ultra violet rays coming from the sun. A) Ultraviolet waves are energy waves and light is

not. B) Light are energy waves and ultraviolet rays are not. C) Both are waves of energy, but ultraviolet waves cannot be seen. D) Both are waves of energy, but visible light waves are more dangerous.
Biology
1 answer:
kari74 [83]3 years ago
3 0

Answer:

C) Both are waves of energy, but ultraviolet waves cannot be seen.

Explanation:

Both visible light and ultraviolet are two manifestations of the same thing: electromagnetic radiation (which is, basically, energy in one of its forms). They both travel empty space as waves, but visible light has a longer wavelength, which means that the distance between succesive peaks of the wave is larger than that of ultraviolet radiation. Visible light just happens to have a wavelength in the range our eyes are capable of seeing, but ultraviolet has a shorter wavelength than that, therefore we cannot see it.

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snow_tiger [21]

Answer:

1. false

2. true

3. true

Explanation:

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2. In a flower, the whorl of petals is called corolla while the whorl of the sepal is known as calyx. In flowers, calyx and corolla together make perianth. The calyx is outer to corolla in a perianth.  

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4 0
4 years ago
Write any four salient features of plants.
xeze [42]
<h3>1) Write any four salient features of plants.</h3>

= The four salient features of plants are :

i) Most of the plants appears green due to the present of chlorophyll...

ii) Most of the plants are made up of eukaryotic cells...

iii) Their cells contain cell wall which is made up of cellulose....

iv) Most of the plants are multicellular.....

<h3>2) Write difference between flowering and non-flowerling plants.</h3>

= The differences between flowering and non - flowering plants are :

<h3 /><h3>Flowering plants </h3>

i) All flowering plants are green...

ii) Flowering plants produce flowers and seeds ...

iii) All flowering plants are multicellular..

iv) Flowering plants are more developed.

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<h3>Non-flowering plants </h3>

i) Non-flowering plants may be green or non green...

ii) Non-flowering plants do not produce flowers and seeds...

iii) Non-flowering plants may be unicellular or multicellular...

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5 0
3 years ago
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harina [27]

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They are useful as they can predict the genetic probability of a particular phenotype arising in a couple's offspring. In other words, it can tell you if you will or will not have a certain trait.

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3 years ago
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andrezito [222]

Answer:

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Self-testing in the immune system is a very important step as it helps in analyzing if the immune cells or lymphocytes. To fight against the intruders, the immune system should initially recognize them. That is, the immune system must have the option to recognize what is nonself (remote) based on what is self. The immune system can make this identification since all cells have distinguishing recognition molecules (antigens) on their surface.

Self-test helps in identifying and eliminate in all lymphocytes that have built and attack the healthy cells and killing them.

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melamori03 [73]

Answer:

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Explanation:

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