Which describes the modern classification system?

2 answers:

7 0

The question must refer to the modern classification system in biology.

It started with the work of Linnaeus - so its early version can be called a Linnaean classification - but right now it has been expanded and changed to fit the evolutionary relationships between the species - which is the best description, i.e. the answer is "it is based on the evolutionary relationship of the species"

oksano4ka [1.4K]3 years ago

7 0

The modern classification system is mainly based on common ancestry. Therefore it is based on evolutionary relationships. A common ancestor refers to the most recent ancestral species from which other different species evolved.

Answer: Based on evolutionary relationships.

<span>I hope it helps, Regards.</span>

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The solutions in the two arms of this U-tube are separated by a membrane that is permeable to water and glucose but not to sucro

DaniilM [7]

Answer:

The correct answer to the question is: the level of liquid in Side A will rise.

Explanation:

Sucrose is formed of two molecules of glucose but the membrane is impermeable to it.
The given membrane is said to be permeable to water and glucose.
Through a semi-permeable membrane, molecules tend to move from a region where its concentration is high to another region where its concentration is low by the process of diffusion until its concentration in the two regions becomes equal. This phenomenon is known as Osmosis.
Concentration gradient of a molecule can be defined as the difference in the concentration of the molecule in two different regions separated by a semi-permeable membrane.
Considering glucose, the concentration of glucose is low in side A (1M) and high in side B (2M), so it will tend to move from side B to side A down its concentration gradient.
Considering sucrose, although its concentration is high in side A (2M) but low in side B (1M), it is unable to move as the membrane is impermeable to it.
Water tend to move from a region where the concentration of solute is low (or water concentration is high) to a region where the concentration of solute is high (or water concentration is low).
Due to the movement of glucose from side B to side A, the concentration of total solute concentration becomes high in side A as compared to side B. Therefore, water would move from side B to side A.
Hence the level of liquid in Side A will rise after sometime.