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Natasha2012 [34]
3 years ago
8

Which body system processes foods into a usable source of energy?

Chemistry
1 answer:
algol133 years ago
5 0
The answer is B, the digestive system. To solve this problem, all you need to do is define each system. The circulatory system transports blood around the body. The digestive system breaks down what you eat into waste or energy. The nervous system sends messages to your brain when you want to do something. The skeletal system protects your head with bones. The answer would be the digestive system, because it breaks down your food into waste and energy. Hope I helped! :)
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If D+2 would react with E-1, what do you predict the formula to be. A) DE B)D2E C)DE2 D) D2E2
allochka39001 [22]
All you need to do the cross the charges and put it as suffixes. 

D+2 + E-1 ----> DE2

answer is C
5 0
3 years ago
Read 2 more answers
At the end of the Paleozoic Era, ____ covered the Earth. This allowed reptiles to flourish and spread across Earth.
Dafna11 [192]

Answer:

1. grasslands

Explanation: hope this helps :)

8 0
3 years ago
Explain obser made when flourine is bubbled in bromine water for sometime
lisabon 2012 [21]

Explanation:

Alkenes react in the cold with pure liquid bromine, or with a solution of bromine in an organic solvent like tetrachloromethane. The double bond breaks, and a bromine atom becomes attached to each carbon. The bromine loses its original red-brown color to give a colorless liquid. In the case of the reaction with ethene, 1,2-dibromoethane is formed.

5 0
3 years ago
Help please :)<br> Describe two characteristics that protists have that make them eukaryotes.
V125BC [204]

Answer:

Animal? Bacteria? Plant? Fungi? What do these figures represent?

2

None of the above! These organisms may be single-celled like bacteria, and they may look like a fungus. They also may hunt for food like an animal or photosynthesize like a plant. And, yet, they do not fit into any of these groups. These organisms are protists!

What are Protists?

3

Protists are eukaryotes, which means their cells have a nucleus and other membrane-bound organelles. Most protists are single-celled. Other than these features, they have very little in common. You can think about protists as all eukaryotic organisms that are neither animals, nor plants, nor fungi.

4

Although Ernst Haeckel set up the Kingdom Protista in 1866, this kingdom was not accepted by the scientific world until the 1960s. These unique organisms can be so different from each other that sometimes Protista is called the “junk drawer" kingdom. Just like a junk drawer, which contains items that don't fit into any other category, this kingdom contains the eukaryotes that cannot be put into any other kingdom. Therefore, protists can seem very different from one another.

Explanation:

Hope it helps, some how.

7 0
3 years ago
Hexanal would be soluble in water? True or false?
telo118 [61]

Answer:

False.

Explanation:

Hexanal is a non-polar compound while water is a polar solvent.

We have the role "Like dissolves like".

So, hexanal is insoluble in water.

5 0
4 years ago
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