<u>Answer</u>: Cystic fibrosis is a genetic disorder that causes thick mucus secretions.
<u>Explanation</u>:
- <em>Cystic fibrosis</em> is a genetic disorder caused by mutations in a gene that makes a protein called CFTR (cystic fibrosis transmembrane regulator).
- The CFTR protein normally functions as a channel for transport of chloride ions in cells responsible for mucus production.
- A person suffering from cystic fibrosis produces abnormal CFTR protein or no CFTR protein at all.
- This is the reason that thick, sticky mucus is produced instead of the thin, watery kind.
It refers to the idea the prehistoric oceans combined with lightning formed the building blocks of life.
Explanation:
The primordial soup refers to the idea that prehistoric oceans combined with lightning to form the building blocks of life.
The soup can be regarded as the soup of life through which the first nuclei acids were synthesized.
- It was a hypothesized set of conditions available when the earth was initially formed about 4.5 billion years ago.
- The miller-urey experiment was set up in 1930's to demonstrated this soup of life.
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Answer: The oxygen content at the source of the streams or rivers is higher as compared to the mouth of the river. Consequently, the organisms which require more oxygen tend to find at the source of the rivers whereas the organisms which require less oxygen tend to find at the mouth of the river.
Explanation:
Answer:I think its B. but im not sure
Explanation:
The population will increase causing an overpopulation of rats.
