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sergeinik [125]
4 years ago
10

What is the function of nitrogen-

Biology
1 answer:
Effectus [21]4 years ago
8 0
I think the answer is C
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explain how the structure and the function of squamous epithelium in the lung are important for gas exchange​(4 marks)​
Alex
Squamous cells area one single layer and flattened, this allows for diffusion of oxygen and carbon dioxide to happen easily in the lungs.
5 0
3 years ago
I need help asapppppppppppppp
Lyrx [107]

Answer: The correct answer is technology

Explanation:

Technology refers to the practical application of knowledge derived from research and other processes that have been verified enough to then create products for human or industrial use.

A good example is the mobile phone.

It is a product of technology that involves science principles of waves motion packaged with electrical and mechanical parts all to meet the need for communication over long distances

5 0
4 years ago
Quién propuso el primer mecanismo de herencia a partir de la observación y la experimentación con plantas?
marusya05 [52]

Answer:

Gregor Mendel

Explanation:

Gregor Mendel fue un naturalista, biogista y matemático que demostró por primera vez los principios de la herencia utilizando su trabajo sobre las plantas de guisantes.

Publicó su trabajo en "Experiments in Plant Hybridization" en el año 1866. Al controlar la polinización, Mendel pudo cruzar plantas de guisantes con diferentes formas de rasgos. En el primer conjunto de experimentos de Mendel, experimentó con solo una característica a la vez. Los resultados de este conjunto de experimentos llevaron a la primera ley de herencia de Mendel llamada ley de segregación (Bio Libretexts).

7 0
3 years ago
Key points: Cells have a variety of mechanisms to prevent mutations, or permanent changes in DNA sequence. During DNA synthesis,
MrMuchimi

Answer:

Explanation:

The above mentioned key points are mechanisms by which cells used to correct replication error and repair damaged DNA.

Proof Reading: while printing a page, the typesetter set the types and impression is taken, proof reading is done to correct mistakes if any, and the final printing is done. A similar follow up mechanism is done after DNA synthesis. If DNA polymerase detects an incorrect nucleotide pair, it will remove and replace with the correct nucleotide immediately.

Mismatch Repair:even after DNA synthesis, mismatch area(insertion or deletion) can be identified on the newly synthesized DNA.

In the mismatch repair, specific proteins scan the newly synthesized DNA strand. The mismatch area is identified and loop.

The second protein complex remove the mismatch segment. Finally correct segment is synthesized by the help of DNA polymerase, SSBs and ligase.

DNA damage repair mechanism: when DNA get damaged, there's a repair process that fix the damage. This includes Direct reversal, excision repair and Double stranded break repair

4 0
3 years ago
How does the movement of water in and out of a plant cell differ from movement in
aalyn [17]

Answer AND Explanation:

In both plants and animals, the movement of water requires an osmotic pressure and a concentration gradient. When animals take in water by osmosis, the swell and burst. this is called haemolysis. Unlike in plants, when the cells take in water, they become turgid. The animal cells lack cell wall and thus they burst since the cell membrane is not elastic.

7 0
3 years ago
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