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Rama09 [41]
3 years ago
5

called CF is a condition that causes excess mucus production in the lungs and if untreated causes early death. CF is caused by a

deletion of 3 letters in the gene sequence. How might this deletion cause excessive mucus production?
Biology
1 answer:
lana66690 [7]3 years ago
4 0

Answer:

The correct answer is - by absorbing too much sodium and water into the cells in the respiratory system.

Explanation:

Cystic fibrosis or CF is a genetic disorder that is caused by the presence of two defective genes that leads to the production of thick and sticky mucus in an individual that affects the respiratory and digestive system by clogging mucus in it.

Due to defective genes, there is an abnormal electrolyte transport system develops in which cells of the respiratory system including the lungs absorb an excessive amount of salt (sodium) and water. It all caused by deletion of the three letters which means an amino acid from a gene that leads to the disruption of the protein that controls the production of the mucus and abnormal electrolyte transport.

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1 point
Brut [27]

Answer:

The K-selection reproductive strategy maximizes the survival of offspring by producing <u>few offspring with high levels of parental care.</u>

<u></u>

Explanation:

Depending on how many offsprings members of a species produce and how much care they invest in them, we can divide species into two categories:

  • r-organisms. These organisms produce many offspring, sometimes even thousands of them. They live in unpredictable, dangerous environments with a lot of predators. This is why most of their young die. It's important for at least some of them to survive so that they can continue reproducing and keep the species alive. The parents don't invest much care into their young. Some examples of these species are mice, rabbits, weeds, and bacteria.
  • K-organisms. These organisms are the opposite of r-organisms. They live in more stable environments, which guarantees that their lifespan will be longer. This is why it's not necessary for them to produce many offspring. Parents invest a lot more care into their young. Some examples of these species are humans, elephants, horses, and primates.

Based on this information, we can conclude that the K-selection reproductive strategy maximizes the survival of offspring by producing few offspring with high levels of parental care.

5 0
3 years ago
Which statement is supported by the diagram
Vikki [24]
We need the statements and the diagram bro
3 0
3 years ago
PLS HELP! ILL GiVE BRAINLIEST!!! LI NK IS BELOW!! JUST COPY AND PASTE IT!!
Anastasy [175]

Explanation:

no link. sorry I can't help

6 0
3 years ago
Read 2 more answers
how do oxygen and carbon dioxide cross from the alveoli through the capillary walls and into the blood?
Fofino [41]

Answer:

The concentration gradient of oxygen in your lungs wants to flow toward homeostasis and oxygen is bound on red blood cells by hemoglobin, along with the attraction of oxygen to hemoglobin. The concentration gradient from carbon dioxide from the capillary to the lungs. There is more oxygen in your lungs (alveoli) than there is carbon dioxide and everything want to reach homeostasis, or level amounts on both sides.

Explanation:

6 0
3 years ago
PLEASE HELPPPP 20 POINTS
Rama09 [41]

Answer:

I think the answer is the first one I might be wrong

Explanation:

4 0
3 years ago
Read 2 more answers
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