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PolarNik [594]
2 years ago
14

Which statement best explains why the atmosphere is considered an open system?

Biology
1 answer:
alexdok [17]2 years ago
3 0

Answer:

thw anser is A

Explanation:

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An infectious disease is an infection that impairs the normal state of health.
Kitty [74]
I think the answer is {b.false}
Infectious diseases are diseases that spread from one person to other either directly or indirectly. I think this is the answer.
3 0
3 years ago
Why are pigments such as chlorophyll needed for photosynthesis
Vlad [161]

Answer:

The chlorophyll pigment have photosystem 680/ PS I which captures the sunlight. Then the pigments gets excited and photosynthesis starts. Without chlorophyll photosynthesis can't happen.

Explanation:

Photosynthesis occurs in the chlorophyll pigment of the plant. They have the capacity to trap light energy and convert its energy to form glucose and oxygen.  

The chlorophyll is a double layer membrane structure. In it two photosystems works i.e. photosystem I and photosystem II. In the photosystem I light is trapped.  

In the chlorophyll thylakoids are present which have photosystem 680. It captures the photons coming from the sun. The photons are the light of different wavelengths which are absorbed by plants.  

The photon have more energy, and when it comes in contact with PS 680, the pigments get excited. Then they release high energy electrons which helps to form ATP, NADPH. Because it is a light dependent reaction.

Glucose and oxygen are formed in the stroma as it does not require light. It is a light independent reaction.

Therefore, chlorophyll is first require to capture photons coming from sun.

6 0
3 years ago
1. ¿Crees que hay algún elemento de tu cuerpo que no cambie durante toda tu vida? O, todo cambia
VMariaS [17]

Answer:

si todo cambia porsue le encanta el cambio

4 0
2 years ago
Carol wants to become a medical assistant. She is wondering why it is necessary to spend the time learning the roots, suffixes,
docker41 [41]
Medical terminology is to create a standardised language for medical professionals. This language helps medical staff communicate more efficiently and makes documentation easier. This enables staff to save time by ensuring they don’t have to explain complex medical condition in plain English and can focus on the treatment of patients. Medical terminology can look and sound complex, but it's important to be able to break words down and understand their roots, prefixes and suffixes to prevent any misunderstandings or errors.

6 0
2 years ago
Can someone please help me!!???
Olenka [21]

Explanation:

plant cell only

  1. nucleus
  2. cell wall
  3. chloroplast
  4. golgi apparatus
  5. cell membrane
  6. ribosome

both plant and animal cells

  1. nucleus
  2. cell membrane
  3. ribosome
  4. golgi apparatus
6 0
3 years ago
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