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2 years ago

Which is the basic functional unit of life?

Biology

2 answers:

alisha [4.7K]2 years ago

7 0

Answer:

Cell is the basic structural and functional unit of life. Every single organism on this planet is composed of cells. Some organisms are made of one cell which is called unicellular organisms. In Unicellular organisms, single cell is responsible for performing all functions of the cell. Some organisms made of more than one cell which is called multicellular organisms. In multicellular organisms, different cells perform specific functions.

lord [1]2 years ago

6 0

Answer:

It’s the cell

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nika2105 [10]

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2 years ago

The bicarbonate buffering system in the blood is the most important buffering system in the ECF. Bicarbonate ion and carbonic ac

wlad13 [49]

The bicarbonate buffering system in the blood is the most important buffering system in the ECF. Bicarbonate ion and carbonic acid are the key components of this buffering system. The weak base bicarbonate serves to buffer the strong acid H+. The buffer to the strong base OH- is carbonic acid. The byproduct of these reactions is water.

Explanation:

A buffer system utilizes chemical buffers and resists any changes in the pH and adjusts acidity and alkalinity of the medium by binding or releasing H+ ions accordingly.

A bicarbonate buffering system in the ECF regulates the bicarbonate level and maintains the normal acidity level of blood.

Sodium bicarbonate reacting with a strong acid (HCl) produces a weak acid (carbonic acid) and sodium chloride. A strong base like (NaOH) reacts with carbonic acid producing bicarbonate and water.

NaHCo3 + HCl → H2CO3 + NaCl

H2Co3 + NaOH → HCO3 + H20

The acidity of the blood is regulated by maintaining the ratio of bicarbonate and carbonic acid at 20:1 under normal conditions through the bicarbonate buffer system. The carbonic acid level is regulated by the respiratory system; while carbonate level is regulated by the renal system.

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2 years ago

What is the basis for the use of a molecular clock to determine the absolute time of evolutionary change?

dedylja [7]

Nucleotide substitutions in a gene occur at a relatively constant rate.

A nonsynonymous substitution is a nucleotide mutation that alters the amino acid sequence of a protein. Nonsynonymous substitutions differ from synonymous substitutions, which do not alter amino acid sequences and are (sometimes) silent mutations.

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2 years ago

9. Which term does not describe a type of galaxy?

Drupady [299]

Answer:

I think that the correct answer is that the nebular galaxy is not a such thing in my opinion so this is why I think that nebular is the correct answer

Explanation:

8 0

2 years ago

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Which statements about viruses are true? Select all that apply. A. Viruses are ultramicroscopic cells. B. Viruses are infectious

dlinn [17]

Answer:

Answers A, B, C, D and E are all correct

Explanation:

Viruses are non living, ultramicroscopic cells, infectious particles with a protein coat surrounding the nucleic acid that replicate inside any life form and infeft them.

Bacteriophages, like viruses that can also infect the animal cells infected by the bacteria.

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2 years ago

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