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never [62]
3 years ago
9

Adam was certain that he had Native American ancestors, based on tales that his grandfather told of the family history. He is di

sappointed when he takes a genetic ancestry test by sending a saliva sample to a testing company, because it does not confirm what he believed to be true. Adam may actually indeed have Native American ancestors because
Biology
1 answer:
Katarina [22]3 years ago
6 0

Answer:

because of the tales his grandfather told, or the dna test was inaccurate

Explanation:

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Organism that causes red tide when present in large numbers
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Lipids and carbohydrates differ in which of the following fundamental respects?
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Answer:

Carbohydrates are hydrophilic  whereas Lipids are hydrophobic.

Explanation:

Carbohydrates can be most commonly understood as hydrates of carbons. They generally contain more than two carbon atoms and are easily soluble in water, thus giving them the characteristics of hydrophilic compounds. Sugar and glucose are some of the important examples of carbohydrates.

On the other hand, lipids comprise a polar region, which attracts water and a much larger non-polar region, which repels water. This non-polar region dominates the polar region of lipid molecules thus making it a hydrophobic compound. Oils, fatty substances, steroids, and waxes are some of the important examples of Lipid molecules.

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3 years ago
Which of the following best explains a characteristic that differentiates fungi from animals?
kvv77 [185]
The correct answer is A.
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3 0
3 years ago
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Sometimes the microvilli on the epithelial cells lining the proximal tubule are destroyed. What effect would this have?
Aleonysh [2.5K]

Answer:

Reduced reabsorption of salts and nutrients from the proximal tubule.

Explanation:

The proximal convoluted tubules are the site for reabsorption of the largest amount of solute and water from the filtered fluid. It reabsorbs 65% of water, electrolytes such as Na+ and K+, almost 100% of the filtered glucose and amino acids and other electrolytes such as Ca2+, Mg2+, etc.

The simple cuboidal epithelial cells of the proximal convoluted tubule have a prominent brush border of microvilli on their apical surface. These microvilli serve to increase the surface area for reabsorption and secretion. Destruction of these microvilli would reduce the reabsorption of the above-mentioned salts and nutrients from proximal convoluted tubules.

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3 years ago
Is half-life is always given in units of time
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:) hope that helps you some, best of luck!
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