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katrin [286]
4 years ago
6

Help me please! Help me find the real answer to these two questions.

Biology
1 answer:
jasenka [17]4 years ago
4 0
7. The cell labeled A is a bacteria cell
Bacteria cells are similar to eukaryotic cells in that they have cytoplasm, ribosomes, and a plasma membrane. The features that distinguish a bactrial cell from other cells or eukaryotic cells include, the circular DNA of the nucleoid, the lack of membrane bound organelles, the cell wall of peptodoglycan, and the presence of flagella. 

8. The cell labelled C is a plant cell.
One of the distinguishing feature of plant cell is the cellulose cell wall, other features that distinguishes plant cell from other eukaryotic cells are the presence of chloroplasts, and the intracellular vacuoles. Photosynthesistakes place in the chloroplasts; cell walls allow plants to have a strong, upright structures; and the vacuoles help regulate how cells handle water and storage of other important molecules. 
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Explain why red blood cells are unable to replace damaged proteins
Harman [31]


The sole reason why red blood cells are unable to replace damaged proteins is that red blood cells lack DNA and cell organelles such as nucleus, ribosomes and mitochondria which are crucial for protein synthesis, assembly and repair. In other words they lack both the information and the machinery for making or repair of proteins.

Due to  lack of DNA and cell organelles, red blood cells cannot be able satisfy the central dogma which  summarizes synthesis of proteins as DNA → RNA → proteins.

DNA has the genetic information on how proteins should be made, RNA is responsible for transferring the information from DNA in the cell nucleus to the ribosomes  in the cytoplasm,  then translating or decoding  this information, which results in the making of  protein.

3 0
3 years ago
The use of DNA fingerprinting relies on the fact that
xz_007 [3.2K]
The use of DNA fingerprinting relies on the fact that no two people, except identical twins, have exactly the same DNA. The correct answer is A. 
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3 years ago
Read 2 more answers
Which of the following is an autotrop
Ray Of Light [21]

Answer:

Can i see the options choices

you question is incomplete??!!!

Explanation:

4 0
4 years ago
The 'G' in the universal gravitation formula
shutvik [7]

b. Gravitational constant

Explanation:

G in the universal gravitation formula represents the gravitation constant. It's value is  2.071×10⁻⁴³ s²⋅m⁻¹⋅kg⁻¹.

  • The law of universal gravitation states that "the gravitational force between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distance separating them".

Mathematically, the law is expressed as:

            F = G\frac{m_{1} m_{2}  }{r^{2} }

Where F is the gravitational force

            G is the gravitational constant

            r is the distance

            m is the mass 1 and 2 bodies

Learn more:

Gravitational force brainly.com/question/1724648

#learnwithBrainly

3 0
3 years ago
Which type<br> Of lava would most likely form lava tube caves: a'a or pahoehoe
MA_775_DIABLO [31]
It's from the Hawaiian language and means the words "shiny, glassy surface, and smooth". The type of lava you want to know is Pahoehoe lava. Lava tubes are usually floored with it.

Hope this helps! :-)
3 0
4 years ago
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