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aliya0001 [1]
2 years ago
13

The Sun is the primary source of energy for ecosystems. The Sun emits______ . When an organism obtains nutrients by feeding on o

ther organisms in the ecosystem, energy is used and released. Energy changes form, but it isn’t destroyed as it transforms. This scientific law is called the law of_________ .
Biology
2 answers:
Liono4ka [1.6K]2 years ago
7 0
The sun emits solar energy, the law is known as the law of conservation of energy
Burka [1]2 years ago
4 0

This scientific law is called as Law of conservation of energy.

Sun is the primary source of energy .Energy once produced by the sun is then utilized by the organisms at various tropic levels. The energy is transferred from one organism to another. Energy is neither created nor destroyed. This is called as law of conservation of energy. Plants uses sunlight and make food   and the energy is then transferred to organisms eating it. When the organism dies the energy is released into the environment. This cycle continues and the the law of conservation of energy is maintained.

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The light reactions require the cooperation of 2 photosystems to power linear electron flow from h2o to NADP+.?
Iteru [2.4K]

Answer:

Only Photosystem I  - 1, 5, 6

Only photosystem II - 3, 2

Both Photosystem I and II   - 4

Explanation:

Only Photosystem I  

a) Reduction of NADP+ -  uses light energy to convert NADP+ to NADPH2

b)  Reduction of electron transport chain between the two photosystems

c) Oxidation of electron transport chain between the two photosystems.

Only photosystem II

a)  Oxidation of water - here the absorbed light energy is used to dissociate of water molecules to produces protons (H+) and O2 along with free ions

b)Reduction of primary electron acceptor - An electron is taken by pheophytin which is a primary electron acceptor molecule that is  located within photosystem II and hence it get reduced.

Both Photosystem I and II  

a) Light is absorbed in both photosystem I and II. While in photosystem I, light waves of large wavelength i.e 700 nm are absorbed, in photosystem II light waves of short wavelength of i.e 680 nm are absorbed.

7 0
1 year ago
An ecosystem had reached its carrying capacity for hyenas. Then, a sudden drought in the region caused many of the hyenas to die
ladessa [460]

Answer:

wear is the picture

Explanation:

4 0
1 year ago
W why do immune system cells contain large amounts of lysosomes
vovikov84 [41]
Some of those lysosomes contain secretions that will help the immune cells destroy foreign pathogens. 
Hope that helped you.
5 0
2 years ago
Read 2 more answers
Which best lists the end products of the light-dependent reactions of photosynthesis? ATP and NADPH CO2 and H2O ATP, NADPH, and
Ksenya-84 [330]

Answer:

C. ATP, NADPH, and O2

Explanation:

took the test on edge

7 0
1 year ago
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Close examination of an organ reveals a lining of several layers of cells. The layers do not contain any blood vessels and one s
Reptile [31]

Answer:

Epithelium

Explanation:

Epithelium are tissue massage found mostly in the skin and serve as protective covering for the internal and external parts of the body.

A major characteristic of the epithelium is that its layers do not contain any blood vessels such as the artery or vein. The surface of the cells is also usually open to the internal cavity of the organ.

3 0
1 year ago
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