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agasfer [191]
3 years ago
9

Help please!!

Biology
1 answer:
salantis [7]3 years ago
6 0
It has changed in many ways. We went from saying just short, simple, sounds to longer, more precise sounds. Also, We have made actual words with syllables.
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Do you think that different foods give you different amount of energy
notsponge [240]
It actually depends on the amounts and what the food is
 
PLEASE GIVE ME THE BRAINLIEST ANSWER!!!!
8 0
4 years ago
Does specific heat also mean the amount of energy needed for cooling, or is it only energy for heating?
const2013 [10]

Answer:

yes it does

here is a more clearer explanation

Explanation:

The specific heat capacity of water is 4,200 Joules per kilogram per degree Celsius (J/kg°C). This means that it takes 4,200 J to raise the temperature of 1 kg of water by 1°C.

Some other examples of specific heat capacities are:

Material Specific heat capacity (J/kg/°C)

Brick 840

Copper 385

Lead 129

Lead will warm up and cool down fastest because it doesn’t take much energy to change its temperature. Brick will take much longer to heat up and cool down. This is why bricks are sometimes used in storage heaters as they stay warm for a long time. Most heaters are filled with oil (1,800 J/kg°C) or water (4,200 J/kg°C) as these emit a lot of energy as they cool down and, therefore, stay warm for a long time.

The specific heat capacity of a material is the energy required to raise one kilogram (kg) of the material by one degree Celsius (°C).

4 0
4 years ago
Read 2 more answers
2
Dominik [7]

Answer: A . the history of the Hoover Dam and its impact on the Southwest region.

Explanation:

This question is based on the article, ''The Hoover Dam'' by Michael Stahl. In it the author begins by describing what hydroelectricity is and how it came about.

The author then used the Hoover Dam to illustrate the points made about hydroelectricity by first giving a brief history of the construction of the dam and the sacrifices it took to build it. The impact the dam had on the area it supplies - the Southwest - was also analysed.

6 0
3 years ago
The enzyme carbonic anhydrase is a protein that binds to two small molecules: water and carbon dioxide. By holding the two molec
OLEGan [10]

Answer:

Chemical groups on the surface of the enzyme reduce the reaction's ... 100,000 carbon dioxide and water molecules into carbonic acid every second but ... What fraction of energy available in the chemical bonds of glucose actually ... The resulting three carbon molecule, lactic acid, builds up as a waste product inside cells.

8 0
4 years ago
I want to design an experiment to see if drinking coffee makes students
olga2289 [7]

Answer: students drinking coffee

Explanation:

The dependent variable is the one that DEPENDS on what is about to happen. In this situation, whether the students scored higher DEPENDS on if they drank coffee.

So the independent variable would be the fact that they drank coffee.

Hope this helps!

7 0
3 years ago
Read 2 more answers
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