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kolezko [41]
3 years ago
9

Explain what is a buffer ?

Biology
1 answer:
inna [77]3 years ago
5 0

Answer:

a person or thing that prevents incompatible or antagonistic people or things from coming into contact with or harming each other:

Explanation:

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In a food chain 200 kg of wheat is fed on by 18 kg of mice which in turn are eaten by 1kg of hawk. What is the percentage energy
Nikolay [14]

Answer:

0.1% of energy

Explanation:

Energy flow: From the whole quantity of energy that reaches the earth's surface, autotroph organisms or producers absorb only 0.1 or 1%.

From the input of solar energy begins a unidirectional energy flow through all the organisms in the ecosystem, from autotrophs to heterotrophs, until it is dissipated in the environment.  

At each trophic level occurs an energy transfer to the next, with only 10% being usable in each of them. This assessment is called "The 10% rule". As a general rule, only about 10% of the energy stored as biomass at one trophic level, per unit time, ends up as biomass at the next trophic level, in the same unit of time.

If wheat transferred 10% of the energy to mice, and of that 10% mice transferred 10% of the energy to hawk, then the percentage of energy transferred from the first trophic level to the third equals 0.1%.

10% (1st TL-2nd TL) / 10% (2nd TL - 3rd TL) = 0.1% (1stTL - 3rd TL)

<em>TL = Trophic level           </em>

8 0
3 years ago
Which of these will most likely happen if the plateau pikas are completely removed from the Tibetan plateau grasslands?
madam [21]

Answer:

The ecosystem will become more stable because the pika will no longer be. there to eat the grasses, the birds will migrate to other ecosystems during. nesting season, and the soils will be able to absorb more of the monsoon. D.

Explanation:

5 0
3 years ago
Cell organelle that stores materials such as water, salts, proteins, and carbohydrates.
Ksju [112]
What's up? this organelle is known as a vacuole. best of luck with your studies!
3 0
3 years ago
What does photosynthesis mean?
Soloha48 [4]

Answer:

the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

Explanation:

6 0
3 years ago
When does the separation of sister chromatids occur? A. Meiosis 1 B. Meiosis 2 C. Before Meiosis D. After Meiosis
Nata [24]

Answer:

option B is correct that is meiosis 2

Explanation:

the two sister chromatids are separated from each other into two different cells during mitosis or during the second division of  meiosis

6 0
3 years ago
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