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Mnenie [13.5K]
2 years ago
13

Cells lining the alveoli secrete a soapy substance known as:

Biology
1 answer:
ki77a [65]2 years ago
5 0
Answer: Alveolar surfactant

Surfactant Alveolar is a type of substance secreted by pneumocytes II (one type of cell that forms the epithelium in the alveolar membrane). This substance  is known as an tensioactive agent, decreasing the surface tension within the alveoli.


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Two species of mice belonging to the same genus occasionally mate (e.g. like the house mouse and the Algerian mouse from last Th
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post zygotic barrier by hybrid inviability

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In the case where mice belonging to the same genus mate but their offspring fail to develop normally is a good example of Post-zygotic barrier by hybrid inviability

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Like all cells, the neurons' internal organization dictates its function. Neurons have relatively many mitochondria, an extensiv
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Answer:

B is the answer

Explanation:

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2 years ago
Assume that in cattle a spotted coat is dominant to an even coat, short horns are dominant to long horns, and the traits for coa
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Answer:

C. 1/4

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Let's assume that the allele for the spotted coat is "S" and the one for the even coat is "s". The allele "L" gives short horns while the recessive allele "l" imparts long horns. The genotype of the cattle heterozygous for both traits would be SsLl. A cross between two heterozygous cattle would produce progeny in following phenotype ratio=

9 spotted coat and short horns: 3 even coat and short horns: 3 spotted coat and long horns: 1 even coat and long horns.

Therefore, the proportion of the progeny with long horns = 4/16= 1/4

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Scientists are studying the structure and function of receptor x, a single-polypeptide protein that is found in the membrane aro
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This protein doesn't have a secondary structure (i.e., alpha helices or beta sheets), thereby it interacts with the specific molecule trough its loops

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