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STatiana [176]
3 years ago
9

What is the total surface area of a human lung

Biology
2 answers:
Mandarinka [93]3 years ago
7 0

Answer:

50 to 75 square meters

Explanation:

Readme [11.4K]3 years ago
5 0

Answer:

the total surface area of a human lung IS 70 TO 75 square meters

Explanation:

Estimates of the total surface area of lungs vary from 50 to 75 square metres (540 to 810 sq ft); although this is often quoted in textbooks and the media being "the size of a tennis court"

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Which is a controlled variable in this experiment?
ad-work [718]
The answer is A. number of pots
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Part A - Name and describe the chemical process producers use to make glucose and the chemical process used by both consumers an
ANTONII [103]

Answer:

The process that is used by producers to make glucose is called photosyntheis and the chemical process used by both producers ans consumers to make ATP ito contribute to the energy exchange is called cellular respiration.

Explanation:

Photosynthsis

Photosynthesis occue in the mesophyll tissue present in  leaves of plants .During photosynthesis the green plants or producers acquires CO2 from the atmosphere and utilizes water in presence of sunlight to produce glucose molecules along with the liberation of oxygen gas.

Cellular respiration

During cellular respiration the glucose molecules are oxidized to form energy in form of ATP along with the production of water and carbon dioxide.

    The O2 that formed during photosynthesis is inhaled by human beings for respiration whereas the CO2 that is produced as waste material inside our body is exhaled by us in the atmosphere.The CO2 is then used by the green plants to carry out photosynthesis.

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2 years ago
Which of the following are reasons that Mendel used pea plants in his genetic experiments?
NeTakaya

Answer:

I think option B and C is correct answer

4 0
2 years ago
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The blood Group of Mother is O. The Blood Group of the Child is B. Man Exonerated If He to Blood Group?​
aalyn [17]

Answer:

If the mother's blood type is O, and the child's blood type is B, a man would be exonerated from paternity if he has blood type A or O.

Explanation:

In the above case, if a mother has blood type O and her child has blood type B, a man can be exonerated from paternity only if his blood type is A or O, and responsible if he is type B or AB.

The blood type is defined by the presence of surface antigens in the red blood cell, called A and B. The presence of each antigen is determined by a gene present on the parental chromosomes.

  • <em> </em><u><em>Blood type A</em></u><em> corresponds to the presence of gene A, and its genotypic expression can be A/A or A/O. </em>
  • <u><em>Type B blood</em></u><em>, whose genotype is B/B or B/O, is due to the presence of a gene containing the B antigen. </em>
  • <u><em>AB blood</em></u><em> —due to codominance— has one gene for A and another for B, with genotype A/B. </em>
  • <em>Blood type O, characterised by the absence of surface antigens, behaves like a recessive trait, which only manifests itself in the absence of surface antigens A and B. The genotype is O/O. </em>

By making a hypothetical crossing between mother and man, one can observe why he can be exonerated.

<u>Man with blood type O </u>

♂ O|O

♀ O|O

Alleles     O      O

O           O|O   O|O

O           O|O   O|O

The only possibility, in this case, is to have children with type O blood. No chance of children B.

<u>Male with blood type A </u>

♂ A|O

♀ O|O

Alleles     A        O

O            A|O    O|O

O            A|O    O|O

In this case there is a 50% chance that the children will be blood type A and 50% chance that they will be O. No chance of children B.

In the case of a man A|A the result is 100% probability of children A|O, and no probability of children B.

<em>So, a </em><em>man with blood types A (any genotype) and O, can be exonerated from paternity</em><em>, since it is </em><em>impossible for him to have a child of blood type B, when the mother is of blood type O</em>.

4 0
2 years ago
What is the power house of the cell?
ANEK [815]

Answer:

Mitochondria is the powerhouse of the cell

Explanation:

Pls mark as brainliest

8 0
3 years ago
Read 2 more answers
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