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ale4655 [162]
3 years ago
11

How far from Earth is the star Proxima Centauri

Biology
1 answer:
Lunna [17]3 years ago
4 0
4.243 light years hope this helps
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What evidence supports the LAW OF CONSERVATION OF ENERGY?
photoshop1234 [79]

Answer:

Taking into account photosynthesis, the evidence that best supports the law of energy conservation is energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis (option 2).

Explanation:

Plants are autotrophic organisms, characterized by synthesizing their own nutrients by converting solar energy into chemical energy through photosynthesis.

During the process of photosynthesis, chloroplasts are capable of absorbing solar energy and converting it into glucose. This process involves the conversion of one type of energy into another.

With respect to the law of conservation of energy, it is necessary to consider:

  1. In the universe there is a constant amount of matter and energy, which is neither created nor destroyed, but transformed.
  2. Energy in an isolated system does not vary, unless it comes into contact with another system.
  3. The amount of energy that is absorbed and obtained is equivalent.

In photosynthesis, the chloroplast is not an isolated system, but has contact with the outside and is capable of absorbing the energy of the sun. This energy will be used to obtain a product, glucose, in an amount proportional to the amount of energy absorbed.

Regarding other options:

<em>     1. In photosynthesis, it is not </em><u><em>mechanical energy</em></u><em> that is transformed into chemical energy.</em>

<em>     3. </em><u><em>Oxygen is a product of photosynthesis</em></u><em>, during the process of chemical energy synthesis, from the combination of carbon dioxide, water and solar energy.</em>

<em>     4. It is true that the </em><u><em>sun gives off light energy that is absorbed by plants</em></u><em>, but it does not explain how this energy is transformed into chemical energy.</em>

8 0
3 years ago
In Drosophila, the genes for body coloration and eye size are on different chromosomes. Normal-colored bodies are dominant to eb
hammer [34]

Answer:

150.

Explanation:

150 flies are expected to have normal body color and to be eyeless in F2 generation. The reason for that population is the ratio of the species produced. The ratio of the species are 9:3:3:1. Ratio 9 refers to first parent while 1 refers to second parent and the middle 3's represent the hybrid formed. So the population of first parent is 450 and population of second parent is 50 while the population of two hybrids are 150 each.

3 0
3 years ago
The mass extinction at the end of the Mesozoic Era was caused by ______.
Georgia [21]
The answer to the question stated above is letter b. <span> <span>a meteor or asteroid colliding with Earth
</span></span> <span>The mass extinction at the end of the Mesozoic Era was caused by </span>a meteor or asteroid colliding with Earth. This was said to happen about 65 million years ago.
3 0
3 years ago
Read 2 more answers
Low blood pressure may cause the net hydrostatic pressure of a capillary to be less than normal. This will result in a(n) ______
monitta

Low blood pressure may cause the net hydrostatic pressure of a capillary

to be less than normal resulting in decreased net filtration pressure.

<h3>What is Pressure?</h3>

This is force applied to a body per unit area and it can be calculated by the

following below:

Pressure = Force/Area

When the net hydrostatic pressure of a capillary is less than normal, the

glomerular blood hydrostatic pressure (GBHP) decreases thereby resulting

in a corresponding decrease in net filtration pressure.

Read more about Filtration pressure here brainly.com/question/10035018

4 0
2 years ago
Many organisms live in and on the human body. State which type of symbiotic relationship exist between human host and the follow
Aleksandr-060686 [28]
A. parasitism. The plasmodium is helped while the human host, harmed. 
b. mutualism. The bacteria is supplied with a living environment while the host human is supplied with vitamin K
4 0
3 years ago
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