Answer:
Found within wet and dry tropical forests, it grows in a variety of soil types. Since the 1500s, mahogany has been a prized timber product—a building block for high-quality furniture and musical instruments—valued for its deep reddish color, durability, and beauty
Explanation:
Answer:
Free radicals are unstable atoms that can damage cells, causing illness and aging. Free radicals are linked to aging and a host of diseases, but little is known about their role in human health, or how to prevent them from making people sick.
Explanation:
Bacteria is larger than viruses. It is one hundred times larger.
Answer:
A) effect of sugar on a metabolic activity of yeast
Explanation:
In this experiment, everything was kept the same except for adding sugar into one test tube and none on the other. The data that was recorded was the bubble formation. Bubble formation is an indicator for a chemical reaction and in this case it is the metabolic activity of the yeast.
Everything that is kept constant like the amount of yeast suspension, temperature and time it was placed in the warm water bath are what we call controlled variables. This is done to prevent any other variables from affecting what is being tested.
The amount of sugar is what is different and this is called the independent variable. This is what we are testing to see if it will have an effect.
Finally, bubble formation or metabolic activity is the dependent variable. This is what will be observed as a result of the changes in the independent variable.