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Studentka2010 [4]
4 years ago
7

What causes diffusion? i have a test to study for in biology and the only thing i dont get is what causes diffusion.?

Biology
1 answer:
tatyana61 [14]4 years ago
3 0
It's kinda known as thermal motion but it's when your substance is most likely heated and makes energy and particles absorb them and that makes them move 
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Match the word to continue the sentence.
Georgia [21]

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Explanation:

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3 years ago
Describe how natural selection can occur in a population. Choose an organism that you suspect has undergone natural selection, w
Ahat [919]

Following general conditions are necessary for natural selection to occur in population:

  • More organisms are born than can survive.
  • Organisms vary in their characteristics, even within a species.
  • Differences in reproduction and survival are due to variation among organisms.

According to Charles Darwin's theory of evolution by natural selection, organisms that possess heritable traits that enable them to better adapt to their environment compared with other members of their species will be more likely to survive, reproduce, and pass more of their genes on to the next generation.

Galapagos Finches: The Galapagos finches studied by Darwin on his famous voyage are probably the most common example of natural selection.

5 0
4 years ago
What effect has eukaryotic evolution had on cells? *
Murljashka [212]

Answer:

greater adaptability!!

Explanation:

hope this helps :)

6 0
3 years ago
Investigate four substances containing nitrogen or phosphorous that are related to biological processes, and explain their respe
OleMash [197]

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.

Explanation:

Hope this helped!

3 0
3 years ago
Read 2 more answers
A change in genotype, but not in phenotype, is most likely due to _________.
NeTakaya
A point mutation in the third position of a DNA triplet! hope this helped :)
7 0
3 years ago
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