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Oxana [17]
2 years ago
12

What are three main functions of stems?

Biology
1 answer:
insens350 [35]2 years ago
6 0
1. Support for and the elevation of leaves, flowers and fruits. 2. Transport of fluids between the roots and the shoots in the xylem and phloem. 3. Storage of nutrients. Hope this helps!!
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2 years ago
An experiment was designed to investigate if caffeine would raise the heartbeat of water fleas. Two groups of water fleas were u
fgiga [73]

Answer:

That is administered and controlled

Step-by-step explanation:

A variable is the condition or a product that may vary without the influence of any investigator. Such variables can be found abundantly in our daily lives, ranging from air to sunlight. Controlling such variables ensures the limitation of their influence on the outcome of an experiment. In connection to this experiment, the variables that are controlled are the mineral content in the water, the  amount of bacteria food, the amount of light and the the constant temperature of 20 degrees C.

If not administered or these variables controlled, the experiment would not clearly explain the impact of caffeine on the heart beat of the water fleas as other variables may have influenced it. Thus variables are controlled to study the singular impact of any agent or effect.  

8 0
2 years ago
Why is the hypothesis that black cats cause bad luck not science?
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The things that black cats cause bad luck are a myth, and do not have any proof or explanation, meaning it cannot be concluded neither as a hypothesis nor scientific.


Hope it helped,


BioTeacher101

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3 years ago
True or False? Pure substances are made up of mixtures.
andrezito [222]

<u>"</u><u><em>False" because the pure substances are made up of single elements or compounds.</em></u><u> </u>Hope this helps! Thank you for posting your question at here on Brainly. Have a great day! -Charlie

7 0
2 years ago
Read 2 more answers
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