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Kobotan [32]
3 years ago
14

THE SUN IS WHICH FACTOR? ABIOTIC OR BIOTIC

Biology
1 answer:
Nana76 [90]3 years ago
3 0
Abiotic. The sun is not living nor has it ever lived.
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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
The point underground where an earthquake starts is the _____.
Ghella [55]
That is called the focus. It's beneath the epicenter
7 0
3 years ago
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How do carbon sinks form underground?
nydimaria [60]

Answer:

a

Explanation:

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3 0
2 years ago
an insect population is growing in such a way that the number in each generation is approximately 1.5 times that of the previous
ruslelena [56]

Answer:

Approximately 338

Explanation:

Since each generation of the insect is approximately 1.5 times that of the previous generation. Therefore,

Population of insect in the first generation = 100

Population of insect in the second generation = 1.5 × 100

                                                                    = 150

Population of insect in the third generation = 1.5 × 150

                                                                     = 225

Population of insect in the fourth generation = 1.5 × 225

                                                                     = 337.5

The population of insect in the fourth generation is approximately 338.

4 0
3 years ago
If Earth suddenly had no moon, which biome would begin to change immediately and change the MOST? A) desert B) estuary C) ocean
Rashid [163]
Ocean, because the moon's gravity has a direct effect in the tides
3 0
2 years ago
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