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marysya [2.9K]
3 years ago
6

The organelle pictured is found in cells of ______________ and is theorized to have once been an independent organism.

Biology
2 answers:
julia-pushkina [17]3 years ago
7 0

Answer:

the answer is C

Explanation:

crimeas [40]3 years ago
3 0

Answer: Its photosynthetic autotrophs

Explanation:

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kari74 [83]

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You design an experiment to test the hypothesis that consuming caffeine increases a person's chances of developing a headache. P
lora16 [44]

Answer:

d) A group that does not drink soda (caffeinated or decaffeinated) or other caffeinated beverages for 10 days

Explanation:

In an experiment, two groups exist as follows: experimental group and control group. Experimental group is the group that receives the experimental treatment (independent variable) while the CONTROL GROUP is the group that does not receive the experimental treatment.

In this experiment, the experimental treatment is the CAFFEINATED SODA (contains caffeine). Hence, the appropriate control group for this experiment will be the group that does not drink any soda (whether caffeinated or decaffeinated) or other caffeinated beverages for 10 days.

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3 years ago
The fire extinguisher can ONLY be used by the teacher in an emergency <br><br> True<br> False
Maksim231197 [3]
False. Probably I don’t have much context
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Julli [10]
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Why does an energy transfer not always result in phase change?
elena-14-01-66 [18.8K]
These energy exchanges are not changes in kinetic energy. They are changes in bonding energy between the molecules. "If heat is coming into a substance during a phase change, then this energy is used to break the bonds between the molecules of the substance. The example we will use here is ice melting into water.
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