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rosijanka [135]
4 years ago
7

a classmate states that mitochondria and chloroplasts descended from the same type of bacteria. Does the evidence support this?

explain your reasoning
Biology
1 answer:
tia_tia [17]4 years ago
8 0
The endosymbiotic theory explains that mitochondria and chloroplasts descended from the same type of bacteria. Symbiosis is an interaction between two organisms of different species, and <u>endo</u>symbiosis is a type of symbiosis in which one organism lives <u>inside </u>the other one. According to the endosymbiotic theory, a host cell ingested symbiotic bacteria, which specialized into mitochondria or chloroplasts. The evidence for this theory is that mitochondria and chloroplasts, like bacteria, have their own circular DNA. They also have their own transcriptional and translational machinery.
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What activation energy was used to start the chemical reaction in the burning marshmallow?
Sonja [21]

Answer:

This question is incomplete

Explanation:

This question is incomplete. However, let's understand some terms

Activation energy is the minimum amount of energy required for a reaction to proceed. Under normal condition, when the activation energy is high, it takes longer for the reaction to proceed than when it is low.

The burning of marshmallow is an exothermic reaction as it involves the transfer of heat energy into the environment.

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Rudik [331]
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4 years ago
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Alecsey [184]

Answer:

Explanation:

Interesting question. Consider the formula that governs the gravitational formula

F = G * m1 * m2 / r^2

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m1 and m2 are masses in kg. The mass is invariant as well anywhere in the universe, except perhaps near or in a black hole.

r^2 is a distance in meters.

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