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lara [203]
3 years ago
15

Why do lymph nodes get swollen?

Biology
1 answer:
anzhelika [568]3 years ago
3 0

Answer:

Lymph nodes become swollen in response to illness, infection, or stress.

Explanation:

Swollen lymph nodes are one sign that your lymphatic system is working to rid your body of the responsible agents.

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The rate at which wastes are produced by a cell depends on the cells ratio of surface area to volume
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What is an effect of a compromised immune system?
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With a compromised immune system, people have a far more difficult time fighting off disease. Due to this, their bodies are more vulnerable to getting such diseases and cannot create the antibodies needed to fight the disease off.

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Did we come from fish
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no

Explanation:

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14. Pat and Tracy each have a sibling who has the recessive trait of sickle cell disorder. Neither Pat. Tracy or
Nady [450]

Answer:

Since sickle cell disease is a disorder with an autosomal dominant inheritance pattern, and in light of the lack of data, it could be said that the only way for Pat and Tracy to have a child with sickle cell disease is for both of them to be healthy carriers of the gene, with a 25% probability.

Explanation:

Considering that both Pat and Tracy each have a sibling with a sickle cell trait and that both they and their parents are healthy, it must be assumed that some of their parents are healthy carriers:

  1. Pat and Tracy do not have sickle cell trait. In this case, there is no chance that they will have a child with sickle cell disease.
  2. Either Pat or Tracy has the trait, but the other does not. It is possible that at least one of their children is a healthy carrier.
  3. If both Tracy and Pat have sickle cell trait, the chances of having a child with sickle cell disease are:

Alelles       R         r

R              RR       Rr

r               Rr        rr

RR: healthy (25%).

Rr:  healthy carrier (50%).

rr: sickle cell disease (25%).

<em>If Pat and Tracy are healthy carriers of the gene that determines sickle cell disease, the chance of having a child with the disease is 25%</em>.

Learn more:

Autosomal recesive inheritance brainly.com/question/10605612

8 0
3 years ago
Which will experience greater acceleration ?
son4ous [18]

Answer:

C

Explanation:

According to Newton's second law, when the same force is applied to two objects of different masses, a. the object with greater mass will experience a great acceleration and the object with less mass will experience an even greater acceleration.

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3 years ago
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