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11Alexandr11 [23.1K]
3 years ago
8

Help please I don’t get it

Biology
1 answer:
gizmo_the_mogwai [7]3 years ago
6 0

In the light dependent reactions light energy is absorbed by the photosytem II and an electron is released. This electron causes a process called photolysis to occur(H20-->2H++2e-+1/2O2). This is how O2 is released in the atmosphere. The electrons resulted from photolyisis enter the electron transport chain. In the electron transport chain using the energy in the elecrtons, hydrogen protons are pumped inside the thylakoid. Those protons accumulate to form an electrochemical gradient. That means the protons need to flow out, and they do through an enzyme called ATP-synthase which turns ADP and inorganic phosphate into ATP and water. In the electron transport chain, the electrons reach Photosystem I where NADP+ is reduced and becomes NADPH.

ATP and NADPH store the energy absorbed in the light dependent reactions. Those two molecules are needed when CO2 is fixated in Calvin's cycle to synthesize glucose.

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Define carrying capacity with an example?
fomenos

Answer: caring capacity is the maximum amount of a population that an enviornemtn can sustain for carry.

Explanation:

Deer eat a lot of plants, tress and shrubs etc. When hunters kill wolves (deers natural predator) their carrying capacity increased until they started to eat all the vegetation and the deer began to starve because they reached their carrying capacity.

7 0
3 years ago
Can the atmosphere change in its composition? Explain.
In-s [12.5K]

Hello! Allow me to help!

Your question: Can the atmosphere change in its composition?

My answer: Our atmosphere is made up of many different gases. The most common gases are nitrogen, oxygen and argon. But, the exact amount of each gas is always changing.

Why is my answer correct? Good question! Allow me to explain: Tropical deforestation not only has a large impact on the carbon cycle and climate, but also affects the chemistry of the atmosphere. Together with the carbon cycle and weather patterns land use can affect the concentrations of greenhouse gases like methane and ozone.

Over a vast amount of time, millions of years, the earth gradually cooled. When the temperature dropped enough, water vapor condensed and went from a gas to liquid form. This created clouds. From these clouds, the oceans formed and the oceans absorbed a lot of the carbon dioxide in the atmosphere.

Changes in atmospheric composition and the rest of the climate system would include temperature, rainfall, and humidity, which would affect the economic importance, geographical distribution, and management of diseases effecting crop production.

Hope this helps! UwU

-Maxwell

6 0
3 years ago
Read 2 more answers
In a forest ecosystem including rabbits, wolves, foxes, and plants, what is one possible reason the rabbit population might decl
saw5 [17]

Answer:

more foxes are being born causing the rabbit population to go down because there are more foxes to feed.

Explanation:

8 0
2 years ago
What kind of molecule is G3P? sugar lipid protein nucleic acid
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Answer:

I think its lipid

Explanation: I am taking the test right now for grad-point  so tell me if i am wrong .

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6 0
3 years ago
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sertanlavr [38]

Answer:

limiting factor

Explanation:

In an ecosystem, certain factors hinder the growth or abundance of the population of organisms. These factors are called LIMITING FACTORS. Limiting factors, which can be biotic, food, drought, predation, disease etc, are factors that inhibits a population of organism from becoming enlarged. There are two types of limiting factors viz: density dependent (depends on size) and density independent (not dependent on size).

This is the case of a drought that dries up the stream that inhabits a population of salamanders. The drought causes the unavailability of water, which will ultimately have an effect on the growth of the salamander population. Hence, the DROUGHT is considered a LIMITING FACTOR.

7 0
3 years ago
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