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Katena32 [7]
3 years ago
15

PLZ HELP WITH SCIENCE WORK Don't give me a link Plz JUST ANSWER

Biology
1 answer:
Pie3 years ago
5 0

Answer:

The US elections of 1860, one year before the civil war.

Explanation:

Letter to the editor,

Dear sir,

Never before in the history of this once proud and united country have elections divided this country in two. As the Democratic Party´s disagreement over the oficial party policy on slavery very clearly shows (with a Southern Democratic candidate and a 'normal' Democratic one), the deeply felt ideological split between the Northern and the Southern States has now, although Abraham Lincoln is chosen as the President, become a fact. This means that we, the United States of America, are no longer United.

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You are examining a rigid plant tissue; it does not flex or bend. Tests show that it is not consuming oxygen gas, as would be ex
siniylev [52]

Answer & Explanation:

The examined tissue could be cortex, due to the fact that it's rigid and does not require oxygen, so metabolic processes, like respiration, are not happening. The cortex, or wood, is dead tissue that no longer develops metabolic processes. It starts growing as the plan also grows, and the cambium tissue is in charge of this process.

4 0
3 years ago
All instructions for proteins, like hemoglobin, are stored in our _______, which is located in a cell’s ______________. This DNA
svlad2 [7]

Answer:

1. DNA

2. Nucleus

3. mRNA

4. Transcription

5. Nucleus

6. mRNA

7. Cytoplasm

8. Ribosome

9. Translation

10. anti-codons

11. codon

12. amino acids

13. protein

Explanation:

Deoxyribonucleic acid or DNA hold all the instructions that make up an organism. It determines the physical structure and even the function of the different cells that make up all organisms.

The DNA are all stored in the NUCLEUS of cells. Typically, eukaryotic cells have a nucleus except red blood cells. The nucleus has a nuclear envelope that keeps the DNA stored inside but it has nuclear pores that allows it to interact with the cytoplasm.

In order for DNA to be replicated, it needs to be turned into messenger RNA, otherwise known as mRNA. The mRNA decodes the DNA in order for the cell to use the code. The process is called transcription.

Transcription is done within the nucleus. Before the cell can understand what to do with DNA, mRNA transcribes to know what information it needs to produce specidic proteins.

Once transcription is done, it will then bring the information out of the nucleus and into the cytoplasm. The cytoplasm is the viscous gel-like solution that holds the organelles of the cell. In the cytoplasm you have ribsomes.

Ribosomes is where protein synthesis takes place, this is why it is called the protein factory of the cell. It is a molecule that is made up of ribosomal RNA, which direct the chemical processes involved in protein synthesis. For protein synthesis to happen, it will need another type of RNA, which is the tRNA.

tRNA is transfer RNA and they translate the mRNA sequence into proteins. tRNA have amino acids attached to it.

Each 3 bases of the mRNA are collectively known as codons. These codons correspond with specific  tRNA that hold the anticodons. These anticodons code for specific amino acids that they also hold.

When they pair up, the tRNA drop off the amino acid which form a chain with the other tRNA amino acids that complete the code. These chain of monomers then make the protein specific to the DNA code that was copied in the beginning.

3 0
3 years ago
Which parasitic protozoan needs two hosts for its propogation? Entamoeba Giardia Plasmodium
Vilka [71]
<span>Plasmodium is a parasitic protozoan that needs two hosts for its propogation.</span>
7 0
3 years ago
Describe one example of weathering at a large scale and one example of weathering at a microscopic scale
Reika [66]

Answer:

Water, wind, and ice can also move pieces of rock or land to new places. The wearing away of a surface of rock or soil is called weathering.

Explanation:

4 0
3 years ago
The "crossing over" of maternal and paternal genetic information in chromatids to form new combinations of genetic information o
daser333 [38]
Metaphase is the stage in which the "crossing over" occurs.


As we know chromosomes carry genetic information. This crossing over process happens in eukaryotic cells and occurs during the mitosis phases of cell division.


Hopefully this helped.
6 0
4 years ago
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