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Nesterboy [21]
3 years ago
6

. Where does most of our energy come from?​

Biology
1 answer:
schepotkina [342]3 years ago
3 0

Answer: Our energy supply comes mainly from fossil fuels, with nuclear power and renewable sources rounding out the mix.

Explanation:

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Endosymbiosis of cyanobacteria is widely accepted as an explanation for the development of chloroplasts. The presence of endosym
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Answer:

The correct answer is- photosynthesis

Explanation:

According to the endosymbiotic theory, an ancestral cell engulfed a cyanobacteria and lived in symbiotic association with that bacteria and over time this bacteria evolved into the chloroplast and the ancestral cell developed into plant cell.

So as cyanobacteria was the first aerobic cell that can evolve oxygen and can do photosynthesis to produce organic food so it could be concluded that the presence of endosymbiotic cyanobacteria provided a cell with the advantage of photosynthesis.

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When the sun, moon, and Earth line up to form a solar eclipse, which body is in the center?
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\huge\boxed{\text{The Moon}}

A solar eclipse occurs when the Moon is between the Earth and the Sun.

The Moon casts a shadow over the Earth, fully or partially blocking out sunlight.

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5 0
3 years ago
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Where does the oxygen come from that is produced as a by-product of photosynthesis?
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It comes from a unicellular organism named Chloroplast that produces a green pigment substance called chlorophyll, this where oxygen is produced as a by-product of photosynthesis.

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Which reading is expected from a thermometer near Earth’s surface during a period of freezing rain?
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Freezing rain refers to the rain that falls through a shallow layer of cold temperature at zero degree Celsius or below zero degree Celsius near the earth surface. Celsius and Fahrenheit are two types of measurement that are used to measure temperature. The freezing temperature of water is zero degree Celsius. Zero degree Celsius is the same thing as 32 degree Fahrenheit. 
Thus, the thermometer reading that is expected from a thermometer near the earth's surface during a period of freezing rain is 32 degree Fahrenheit.
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