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amid [387]
3 years ago
11

Why are some of Carl Linnaeus’s classifications of organisms incorrect?

Biology
2 answers:
OverLord2011 [107]3 years ago
4 0
The answer would be Linnaeus primarily used physical characteristics.
kicyunya [14]3 years ago
3 0

The right option is; Linnaeus primarily used physical characteristics

Some of Carl Linnaeus’s classifications of organisms are incorrect because he primarily used physical characteristics.

Carl Linnaeus, known as the father of taxonomy, was a Swedish biologist who classified organisms according to their physical characteristics. Carl Linnaeus proposed that there were three major groups, named kingdoms. These kingdoms were animals, plants, and minerals. He divided each of the kingdoms into five levels which are; class, order, genus, species, and variety. Organisms were arranged in these levels according to their traits, which include physical appearance such as body size, and shape, similarities of body structure, and way of obtaining food.


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Based on the definitions of pharmacophore and privileged structure, outline essential structural features a 1,4-dihyrdopyridine
stiv31 [10]

Answer:

Explanation:

Pharmacophore (pharmacology) - The molecular framework responsible for a drug's biological activity. According to IUPAC — A pharmacophore is the ensemble of steric and electronic features that is necessary to ensure the optimal supramolecular interactions with a specific biological target structure and to trigger (or to block) its biological response.

Privileged structures are defined as molecular frameworks which are able of providing useful ligands for more than one type of receptor or enzyme target by judicious structural modifications.

1) The 1,4-dihydropyridine ring is present in many biologically important molecules that acts as an important scaffold for cardiovascular drug - a calcium antagonists and although it is technically not considered as a pharmacophore, it is considered as a privileged structure.

1,4-Dihydropyridine (DHP), belongs to the class of calcium antagonist that inhibits the influx of extracellular Ca+2 through the L-type voltage-dependent calcium channels.

A positional substitution in the 4-position is feasible in the heterocyclic ring which in turn culminates in various calcium channel antagonist activities and this heterocyclic ring is the common feature for various pharmacological activities such as anti-inflammatory activity, analgesic activity,

antihypertensive, antianginal, antitumor, antitubercular activity and antithrombotic .

Position on the heterocyclic ring binds to the L-type channel and also to N-type channel on membranes.

2.) The bioisosteres are not a suitable bioisostere for the traditional C-4 aryl or heteroaryl substitution which is necessary for calcium ion blockage thereby inhibiting it to function with the mechanism shared above.

6 0
3 years ago
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In order for me to assist you, you must attach an image of the graph. :)

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2 years ago
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Areas near oceans or large lakes tend to have more moderate climates than do areas far from large bodies of water. Which of thes
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Answer:

B

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This is the third question of yours I've answered

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C) The population continues to grow :)
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Finger [1]

Answer:

b

Explanation:

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