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Hatshy [7]
3 years ago
12

The human brain is an example of a A) cell B) tissue C) organ D) organ system

Biology
1 answer:
Elis [28]3 years ago
7 0
C organ rjrjrrjrjrjfjffjhdddhdhdhdehrhfhcbddbdhdhchchchrrb
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Question 2 (2 points)<br> Nitrogen is important for creating __<br> nucleic acids such as ___
Gnom [1K]

Answer:

Nitrogen is essential for all living things because it is a major part of amino acids, which are the building blocks of proteins and of nucleic acids such as DNA, which transfers genetic information to subsequent generations of organisms. hopes this helps let me know :)

5 0
2 years ago
Why is Catalase important to the body?
oksian1 [2.3K]

Answer:

Catalase behaves as a catalyst for the conversion of hydrogen peroxide into water and oxygen.

Explanation:

Catalase is an antioxidant enzyme that plays a very important role in the protection against oxidative damage by breaking down hydrogen peroxide. It is a very highly conserved enzyme that has been identified from numerous species including bacteria, fungi, plants and animals.

Catalase has one of the highest turnover numbers for all known enzymes (40,000,000 molecules/second). This high rate shows an importance for the enzymes capability for detoxifying hydrogen peroxide and preventing the formation of carbon dioxide bubbles in the blood.

7 0
3 years ago
Read 2 more answers
Snapdragon flowers follow an incomplete pattern of inheritance. Flowers can be red (RR), white (WW) or pink (RW). Two RW snapdra
Basile [38]

Answer:

there is a 50% probability

Explanation:

When two pink snapdragons are bred there is a 25% for the offspring to be red, 25% white, and 50% pink

8 0
3 years ago
Which part of the influenza virion facilitates interaction between the virus and the to-be-infected eukaryotic host cell?
Radda [10]
The choices are:
<span>A.  Matrix protein
B.  Hemagglutinin
C.  An ion channel
D.  Neuraminidase
</span>
The right answer is B. Hemaglutinin

Explanation:
Haemagglutinins are triangular rods. They allow the attachment of Influenzaviruses on the target cells of the respiratory tree. In the presence of red blood cells, a haemagglutination (liquid medium) is obtained.
<u>About the other components of Influenza virus:</u>Neuraminidase is a mushroom-shaped spike composed of a tetramer consisting of 4 subunits of a single glycoprotein. At 37 ° C, the neuraminidase destroys the bonds (virus - cells) and thus allows the release of neoformed virions in the external environment: it is elution.
The membrane protein M and the protein subunits of the nucleocapsid are antigenic and are the basis of the classification of Influenzavirus types A, B and C. They induce the synthesis of non-protective antibodies fixing the complement.
7 0
3 years ago
Worksheet: DNA,RNA and Protein Synthesis
sineoko [7]
DNA<span> and </span>RNA<span> are nucleic acids found in the cells of living organisms. ... The </span>synthesis<span> of </span>proteins<span> starts with transcribing the instructions in </span>DNA<span> into mRNA. The mRNA is then carried out of the cell's nucleus into the cytoplasm, specifically into structures called ribosomes.</span>
3 0
3 years ago
Read 2 more answers
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