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3 years ago

What does it mean for an environment to be isotonic?(1 point)

1 answer:

4 0

A solution to be isotonic refers to b) The concentration of solute in the environment and the concentration inside the cell are at equilibrium.

Isotonic solution is the solution that have equal concentration of solute on both sides of the solution separated by a membrane.
If a cell is kept in an isotonic solution that means the concentration of the solute inside the cell is the same as that of the outside then the movement of solvent does not occur between the cell and the external environment.
The osmotic pressure inside the cell and outside the cell across the semipermeable membrane of the cell becomes the same due to equal concentration of the solute on each side.

0.9% normal saline is an example of isotonic solution.

Learn more about isotonic solution:

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How many factors does a scientist want to differ between the experimental and control groups?

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Answer:

1 factor deffer which is independent variable which is controled in control groups

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3 years ago

For a person who lives at a latitude of +40 degrees (ukiah for example), when is the sun directly overhead at noon

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The answer is - Never.

40 degrees of latitude, be it on the southern or northern part of the Earth, never gets direct sunlight throughout the year. This is due to the fact that the Earth's inclination is not that big so that the sunlight can fall directly on this latitude, in fact, the inclination of the Earth allows the sunlight to fall directly on the surface only to the lines of 23.5 degrees north and south of the Equator.

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3 years ago

The Clean Air Act would be a reason for the Environmental Protection Agency (EPA) to regulate car emissions. Please select the b

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The EPA is an independent agency formed for environmental protection. Hence the statement The Clean Air Act would be a reason for the Environmental Protection Agency (EPA) to regulate car emissions is true.

Car emissions are very harmful for all the living organisms in an environment.

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3 years ago

Read 2 more answers

Earth's biosphere is described as

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the layer of the planet Earth where life exists

Explanation:

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3 years ago

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However, by comparing the of these organisms, many similarities between them are revealed. These similarities suggest that they'

maw [93]

Complete Question:

1. Organisms don’t all reproduce the same way. However, by comparing the ____ of these organisms, many similarities between them are ____

2. of these organisms, many similarities between them are revealed. These similarities suggest that they’re ___ linked. This type of study is called developmental biology.

Group of answer choices.

A) Cells B) Embryos C) Mode of reproduction D) Evolutionarily. E). Revealed.

Answer:

embryo; revealed; evolutionarily.

Explanation:

Reproduction can be defined as a biological process which typically involves living organisms producing an offspring.

Basically, there are two (2) methods of reproduction and these are;

I. Asexual reproduction: it involves the cloning of a living organism to produce an offspring because there is only a single parent.

II. Sexual reproduction: it involves the combination of the genome (gamete) of a male and female living organism during fertilization.

It's a fact that all living organisms do not reproduce the same way.

However, by comparing the embryo of these organisms, many similarities between them are revealed. These similarities suggest that they’re evolutionarily linked.

Hence, we refer to this type of study as developmental biology

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3 years ago