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Andrej [43]
3 years ago
10

What statement is true about a cell

Biology
1 answer:
vagabundo [1.1K]3 years ago
7 0

Answer:

If you have anyone of these answer choices..Its D.All of the Above

Explanation:

A. Cells are the structures that contain all of the materials necessary for life

B. Cells are found in all organisms

C. Cells are sometimes specialized for particular functions

D. All of the above

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A man who smokes heavily has developed lung cancer. The tobacco smoke has caused mutations in some of the cells in his lungs, ma
Naya [18.7K]

Answer:

The correct answer is: B. If he inherited a mutation which made him more susceptible to lung cancer, it may have been present in some of the gametes he produced and passed to his children.

Explanation:

  • The inheritance of genes from the parents to the offspring is mediated by the germinal cells or sex cells or gametes of the parents.
  • The genetic material present in the somatic cells of the parents are not transmitted to the offspring.
  • In the given case, the man who develops lung cancer generates some tobacco smoke induced mutations in some of the cells of his lungs.
  • The cells of the lungs are type up of somatic cells. Hence, any mutations in the genome of these cells will never be transmitted to the offspring.
  • Therefore, the children of the man will never become prone to develop lung cancer due to development of mutations in the lung cells of the man.
  • However, if the man has inherited any mutation from his parents which can increase the risk of development of lung cancer, then these mutations will be present in his germinal cells and also in some of his gametes.
  • Now, if a child is born due to the fusion of the the maternal gamete with one of these mutated paternal gametes, there is an increased chance of developing lung cancer in the child, irrespective of the fact whether he is a smoker or a non-smoker.

3 0
3 years ago
Which human body systems are involved in thermoregulation
ValentinkaMS [17]

Answer: The nervous system of human body is responsible for thermoregulation.

Explanation:

Thermoregulation is the process whereby an organism maintain its internal temperature despite changes in External temperature. The nervous system of human body is responsible for thermo regulation. The nervous system consist of nerves cells and fibres which send nerves impulses to the body parts. It comprises of central nervous system and peripheral nervous system. The centsl nervous system consist of brain and spinal cord while the peripheral nervous system consist of nerves. A part of the brain (central nervous system)called hypothalamus controls thermo regulation. When it senses a change in internal temperature of the body, its send signals to the organs, muscles, glands and nervous system , they respond differently so as to restore the body temperature to its normal one.

8 0
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A client has a diagnosis of superficial partial-thickness burns. the client asks what layers of skin are involved with this type
insens350 [35]
The epidermis is damaged
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A person with an injury to her frontal lobe may have
gtnhenbr [62]
Increase in irritability , ie change in mood and an inability to regulate behaviour
8 0
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What kind of relationship would a hummingbird and a daffodil have?
Pani-rosa [81]
C. Mutuality Relationship.
They have a mutual relationship by which both benefit.
When the hummingbird takes a sip off the daffodil, they are not sucking their strength out, they are simply sucking out pollen, which they then transfer to other flowers.
This process benefits both the plant and the bird.
7 0
3 years ago
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