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almond37 [142]
3 years ago
9

Give an example of a basic scientific experiment, identify the control variable, independent and dependent variable in the exper

iment.

Biology
1 answer:
schepotkina [342]3 years ago
5 0
The picture gives an example .

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How does destroying the forest affect atmospheric levels of carbon?
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About 338 Pg (petagrams) of carbon is<span> stored below ground in boreal </span>forests<span>, which </span>is<span> just about the same </span>amount of carbon<span> that tropical </span>forests<span> ... and serves to release </span>carbon<span> and other potent greenhouse gases into the </span>atmosphere<span>. The d</span>estruction<span> represent just a few of the worrisome </span>effects<span> of climate change in the boreal.</span>
7 0
3 years ago
Describe how protists are helpful and harmful to humans and other organisms
-BARSIC- [3]

Answer:

Plant-like protists produce almost one-half of the oxygen on the planet through photosynthesis. Other protists decompose and recycle nutrients that humans need to live.  For example, medicines made from protists are used in treatment of high blood pressure, digestion problems, ulcers, and arthritis. Fungi are very important ecologically, because they are one of the most important decomposers in most ecosystems. They help to break down plant fibers such as dead leaves and wood and allow the nutrients to be released into the soil. Fungi are useful to humans because they have economic value.

Hope this helps

Explanation:

8 0
3 years ago
What part of the cardiovascular system is responsible for the one-way flow of blood through the chambers of the heart?
Ilya [14]
It would be the atria i think

5 0
3 years ago
A(n) _____ key is very easy to use because it provides only two choices.
castortr0y [4]
A dichotomous key is very easy to use because it provides only two choices.
If you need a further explanation let me know!
Hope this helps!

4 0
3 years ago
Read 2 more answers
Investigate substances containing carbon or oxygen that relate to biological processes. Explain their main function in those pro
Scorpion4ik [409]

Answer:

Well, you already have the answer, but I can try to elaborate XD

So, DNA: contains genetic information that is necessary for biological functioning and reproduction.

More specifically, it contains the genetic instructions through gene encoding that instructs the cell what to do. A specialized complex ribosome interacts with the DNA molecules and "reads" it, changing the genes from the DNA into proteins that the cell as a whole can function upon. It is also crucial to forming a whole cell in offspring, since only the genes from the two parents combined (in humans at least) can produce an offspring with all genes intact. Those who do not have genetic disorders, a famous one being Down Syndrome.

Next, RNA: a molecule necessary for expressing genes and making proteins.

Connecting to the paragraph above for DNA, RNA also assists in the process by reading the ribosome that reads the DNA itself. Complicated, I know. All you have to know, however, is that the RNA, in this case called mRNA since it serves as a messenger, hence, the "m", reads the codons produced by the ribosome when it reads the DNA, and makes proteins according to those codons, and those proteins then scatter all across the cell to execute instructions.

Now, we move onto nitrogen and phosphorous: both are found in amino acids, the building blocks of proteins.

That is actually partially wrong. Amino acids do not contain phosphorous, but do contain nitrogen. Not exactly sure what went wrong on your end there, but nitrogen is a basic building block for amino acids, which are basic building blocks themselves for proteins. To be more clear, amino acids are made of carbon, hydrogen, oxygen and nitrogen atoms. No phosphorus there!

Finally, enzymes: special proteins that accelerate chemical reactions in cells.

This is correct. Enzymes typically lower the activation energy required for reactions to happen. More specifically, enzymes make the reaction molecules more active, hence, lowering the threshold for the amount of energy you have to put in before the molecules start crashing into each other hard enough to have a chemical reaction. Of course, enzymes do not participate in the reaction itself, which makes them incredibly useful for spurring on chemical reactions since they can be used multiple times.

Yes i know the answer is long

ididnt know how big or small you wanted it

so......yea

hope it helps

7 0
3 years ago
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