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Savatey [412]
3 years ago
7

Light absorbing compounds, whether they are found on a painter's brush or in a living cell are known as

Biology
1 answer:
Nitella [24]3 years ago
4 0

Answer:

Pigments

Explanation:

The term pigment derives from the Latin <em>pigmentum</em>, which means "<em>substance that produces color</em>".

Pigments provide color to cells and tissues.

In vegetables, we can find different pigments, such as chlorophyll or carotenoids, among others. Plants use these pigments during the photosynthesis process to absorb sunlight and fixate carbon dioxide. Stem color, flower color, and other tissue colors are defined by pigments on their cells.

Animal cells also have pigments that provide color to tissues like the hair, the skin, or the eyes.

<em>Pigments are, basically, chemical molecules that produce color by the selective absorption of sunlight. They absorb light of certain wavelengths and reflect other wavelengths. The color expressed is the product of the reflection. </em>

Many pigments have other functions, such as catalyze for some reactions. They accelerate or facilitate chemical reactions.

Pigments can be differentiated into two groups:

  • The ones with nitrogen in their molecules, such as hemoglobin, chlorophyll, biliary pigments, and melanin.
  • The ones with no nitrogen, such as carotenoids and flavonoids.

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Which is true about water molecules?
rodikova [14]

Answer: C

Explanation: Water is a polar molecule because the electrons of the hydrogen atoms get "pulled" towards the electrons of the oxygen atom. Which is both positive and negative on opposite ends.

It could be B as well but, I believe it's C

3 0
3 years ago
I nee help brinlist i will give it to you
Montano1993 [528]

Answer:

A

Explanation:

The energy carried by electromagnetic waves is sometimes referred to as radiant energy. Electromagnetic waves do not require a medium for propagation hence they can travel through vacuum and are known to transmit enormous amount of energy.

Electromagnetic waves transmit energy away from the source of the wave. Hence the answer chosen in the answer section above.

3 0
3 years ago
Which is not a cost for organisms that sexually reproduce?
Alekssandra [29.7K]

Answer:

Identical shape and structure.

Explanation:

Those organisms that reproduce sexually have high variations and differences between the parent and its offspring. They are not identical to each other because the offspring gains half characteristics from male parent and half from the female parent making it different from its parent. Identical feature is present in the organisms that reproduce through asexually means from only one parent so the identical shape and structure is not the cost of sexual reproduction.

3 0
3 years ago
Which of the following is NOT a land resource?
julsineya [31]

Answer: d. the wind

Wind is not a land resource. It is the natural movement of air across the earth surface. Wind is also considered as movement of gases present in the atmosphere. The strength and direction of wind can be measured. It is a atmospheric resource. Wind produces as a result of difference in the atmospheric pressure. When a difference in atmospheric pressure exist air  moves from region of high pressure to low pressure area. Wind energy is renewable source of energy can be used to produce electrical energy.  

8 0
3 years ago
Read 2 more answers
A large population of mice is isolated on an island. There are two varieties of the mice, brown and gray. Their fur colors close
Nadusha1986 [10]

Answer:

C. disruptive natural selection

Explanation:

Disruptive selection is a type of natural selection in which extreme phenotypes are favored over intermediate phenotypes in a population. Environmental change is a major factor that can bring about disruptive selection. The individuals with the extreme phenotypes adapt well and are able to survive in the particular environment, while those individuals with intermediate phenotypes would hardly survive or be greatly reduced in number.

The gray rock outcrops and the brown soils of the Island favors the survival of mice with brown and gray fur color respectively. The fur colors of these two extreme phenotypes in the population of mice, have helped both varieties against Hawks as their main predators, hence establishing their existence on the Island.

3 0
3 years ago
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