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xenn
2 months ago
10

Assume that a single layer of phospholipids coat the water in a beaker. Which part of the phospholipid molecule will face the ai

r?
Biology
1 answer:
Tresset [2.2K]2 months ago
7 0
The head is oriented towards the air due to its hydrophilic nature. The tails are hydrophobic.
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You are studying a population of wild coyotes and notice that every three years there is an epidemic of a bacterial disease. Whi
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I believe the correct answer is D.
My reasoning for this conclusion is that coyotes from various groups would have encountered diseases and potentially developed immunity (for those that survived), allowing them to migrate to other coyote populations where those individuals may introduce the illness.
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1 month ago
If the ancestral form for a particular lineage was aquatic and used gills for respiration, what changes would you expect to see
vlada-n [2515]

The Respiration of Gills

Explanation:

  • A primary aspect of aquatic beings such as fish and prawns is their unique breathing organs known as gills.
  • These structures allow for oxygen absorption from water, facilitating gas exchange; the gills are equipped with blood vessels.
  • Amphibians possess gills that enable them to breathe oxygen within the aquatic environment.
  • The gills are located at both sides of the throat, functioning during gas exchange in fish.
  • Gills consist of string-like tissues made of fibrous proteins.
  • These fibers play various roles, including the transfer of ions and water, along with exchanging oxygen, carbon dioxide, acids, and bases.
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1 month ago
Ben uses a reusable storage bag to carry snacks to school. Debbie uses a similar bag to store pencils so her backpack doesn’t ge
vlada-n [2515]
The response is golgibody hope this was useful
8 0
1 month ago
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Cats normally have a total of 18 toes, 5 on each front paw and 4 on each back paw. But some cats express the dominant phenotype
Rainbow [2354]
c. PP

Jake exhibits a dominant trait for polydactyly, thus he must be PP or Pp. Lucy, having a normal toe count, has a recessive genotype, confirming she is pp.

If Jake were Pp, a breeding scenario of Pp X pp would result in half Pp and half pp kittens, indicating some kittens could be born with the recessive trait of 18 toes. However, none of the kittens possess 18 toes, all displaying a range of 21 to 25 toes. Therefore, Jake cannot be Pp .

Jake must be PP, as a cross of PP X pp guarantees that all kittens will have the Pp genotype, demonstrating the dominant pheno-type of polydactyly. Each kitten exhibits more than the recessive count of 18 toes, hence they are Pp. The variability in toe count arises from the trait's variable expressivity.

8 0
1 month ago
Viruses are made up of either DNA or RNA surrounded by a coating of protein. when the two main substances that make up a virus a
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The answer would be C
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1 month ago
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