The diffusion of water molecules across a semipermeable
membrane and down a concentration gradient is known as

Answers

Answer 1

Answer:

Osmosis is the diffusion of water molecules across a semipermeable membrane from an area of lower concentration solution (i.e., higher concentration of water) to an area of higher concentration solution (i.e., lower concentration of water). Water moves into and out of cells by osmosis.


Related Questions

A rural, forested area receives a lot of rain in a short amount of time. What would most likely cause potential flooding in the area?

Answers

The most likely cause potential flooding in the area will be saturation of the ground with water.

What is Flooding?

This is defined as a situation in which an overflow of water submerges land that is usually dry.

When the ground is already saturated with water, a forested area receiving a lot of rain in a short amount of time will lead to flooding.

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What is the Cell Theory , and what is it about ?

Answers

Answer:

Basic unit of life is cells

Answer:

The Cell Theory Is a Biology Unifying Principle

Explanation:

According to the cell theory, all biological entities are made up of cells; cells are the basic unit of life, and all life originates from pre-existing life. The cell theory is now so well-established that it serves as one of biology's unifying principles.

20. Which of the following statements identifies the relationship between the Miller-Urey Experiment and the
Primordial Soup Hypothesis?
Miller-Urey supported the Primordial Soup Hypothesis because it concluded that organic molecules could be
produced in the presence of certain inorganic conditions of early Earth.
Miller-Urey disproved the Primordial Soup Hypothesis because it concluded that amino acids could be
produced in the presence of certain inorganic conditions of early Earth.
Miller-Urey did not support the Primordial Soup Hypothesis because it did not prove the formation of organic
molecules through a lightning strike hypothesis.
No relationship exists between the two.

Answers

Miller-Urey supported the Primordial Soup Hypothesis because it concluded that organic molecules could be

produced in the presence of certain inorganic best explain the relationship between Miller-Urey and Primordial soup.

Miller urey experiment.

The Miller Urey experiment refer to a form of chemical experiment that simulated the conditions present on the early Earth and tested the chemical origin of life using those conditions . The experiment performed at the time supported Alexander Oparin's and J. B. S. Haldane's hypothesis that putative conditions on the primitive Earth is important for chemical reactions to produce more complex organic compounds from simpler inorganic precursors.

The first was the “primordial soup” which was a conclusion that when Earth was young, the oceans were filled with simple chemicals important for life and this assemble into living cells.

Therefore, Miller-Urey supported the Primordial Soup Hypothesis because it concluded that organic molecules could be

produced in the presence of certain inorganic best explain the relationship between Miller-Urey and Primordial soup.

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To what level of organization does a paramecium belong to?

Answers

The level of organization that a paramecium belongs to is : Unicellular protozoa

What are paramecium?

Paramecium are unicellular protozoa that belongs to the kingdom Protista. they are unicellular because they are comprised of a single cell organization. Paramecium are found in aquatic habitats such as freshwater and brackish waters.

Hence we can conclude that The level of organization that a paramecium belongs to is Unicellular.

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#SPJ4

expermant laveas test strach

Answers

Answer:

Experimental Procedure:

Mix 10 drops of tincture of iodine with 30 drops of water to make an iodine solution. Put a cracker on a plate, and test it for starch using a drop of the iodine solution. Chew a second cracker for 60 seconds until it is completely mixed with saliva.

how did scientists change societies view of smoking after 1960?

Answers

Answer:

Obviously they showed that smoking can cause cancer

Explanation:

lol

Answer:

They changed society's view of smoking after 1960 by showing that smoking causes cancer. Answer: B. They showed that smoking causes cancer. There was a noted change in the society's view on smoking after 1960. Such change was influenced by declaring tobacco as an addiction and that it can cause cancer. It started in the 1964.

Which muscle originates on the occipital bone and spines of c7-t12 and inserts on the clavicle and acromion of the scapula?.

Answers

Answer:

trapezius

Explanation:

Name any four source of carbon​

Answers

There are many different sources of carbon!

Some of the following can be of those sources:

Fossil fuel

Carbon dioxide

Natural gas

Coal gases

Petroleum

There are others but I hope this is enough. Good luck! :)

A small segment of DNA has the following nitrogen base sequence:

DNA=TAC CCT ACC ATT

Answers

Answer:

RNA=AUG GGA UGG UAA

- only assuming because you didn't finish the question

Explanation:

A-->U, T-->A, C-->G, G-->C

A length of DNA that codes for a particular characteristic is called a

A:allele
B:gene
C:cell
D:Dna

Answers

Gene I think but it is probably that
It is an allele I just learned punnet squares and we have talked about this all day!

A beetle species that lives deep inside trees invades a forest where a population of woodpeckers lives. Only woodpeckers with longer beaks are able to reach these beetles and feed on them. The shorter-beaked woodpeckers are at a disadvantage over the longer-beaked ones.
Which type of pattern of natural selection of woodpeckers is most likely to occur in this scenario?

Answers

Answer:

Mountain Pine Beetle.

They only attack in Douglas Fir Trees.

Selection that acts over evolutionary time to preserve traits that increase an individual's ability to mate is known as __________.

Answers

The selection that acts over evolutionary time to preserve traits that increase an individual's ability to mate is known as se_xual selection.

What is se_xual selection?

The expression 'se_xual selection' makes reference to the type of evolutionary constraint on the individual's ability to mate.

Se_xual selection is fundamental to increase the genetic variation and thus enhance adaptive chances.

Se_xual selection can be considered a special type of natural selection that acts at an individual level.

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help please!!!! it’s called DNA and genetics !!!!!

Answers

Answer:

9 is mutations

Explanation:

how do prokoryotes benefit animals

Answers

Answer:

They produce or process nutrients in the digestive tracts of humans and other animals.

Explanation:

an organism with two of the same alleles for a particular trait is said to be?

Answers

Answer:

An Organism with two similar alleles is a Hom ozygous organism.

Photosynthesis ceases when leaves wilt, mainly because:.

Answers

Photosynthesis ceases when leaves wilt, mainly because stomata close, preventing CO2 from entering the leaf.

What is photosynthesis?

Photosynthesis is a series of chemical reactions by which plants can produce simple carbohydrates in presence of light.

Photosynthesis requires carbon dioxide and light to produce glucose and release oxygen.

In plants, the interchange of carbon dioxide and oxygen during photosynthesis occurs in specialized structures called stomata.

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Secretions from the liver and the pancreas get mixed with food here. By the time food leaves this organ, the process of digestion is complete. Which organ are we talking about?

Answers

small intestines, i belive.

what are the three types of fermantation​

Answers

Answer:

Lactic acid fermentation.

Yeast strains and bacteria convert starches or sugars into lactic acid, requiring no heat in preparation.

Ethanol fermentation/alcohol fermentation.

Acetic acid fermentation.

Explanation:

hope it helps

When you ice skate, the heat generated by the blade of the skate rubbing against the ice causes some of the ice right under the blade to melt. This water acts like a lubricant under the skate that allows the skate to slide.What causes the ice to melt under the blade?

A) weight
B) friction
C) magnetic energy
D) electromagnetic energy

Answers

Answer:

Friction

Explanation:

When an object comes into contact with another object, friction is created, some objects have lower or higher friction when they meet each other, tires and the road for instance. Wheels are designed to lower friction, just as an ice skate is made to glide across the ice.

what bone was in the spinal cord

Answers

Answer:

Vertebrae are the 33 individual bones that interlock with each other to form the spinal column.

Explanation:

The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx (Fig. 2). Only the top 24 bones are moveable; the vertebrae of the sacrum and coccyx are fused.

You created a formula in cell c8. When you copy the formula into cell d8, which action are you taking?.

Answers

We are changing the content in the formula to the content in cell D8.

What cells is the question referring to?

The question refers to the cells that we find in computer data processing programs that include a spreadsheet as the main tool.

In these programs we can edit each cell with different information and include formulas so that the cell data depends on others.

According to the situation presented, the first action we performed was to establish a formula in cell C8 to obtain the result of an operation in that cell. Later, we change it to cell D8, then we will see the result of that same operation in cell D8.

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Pls help i will give 5 starts and brainliest question is down below 9:46

Answers

cool, very thin, outermost layer, under the ocean, usually made of out basalt:   1. oceanic crust

cool, very thin, outermost layer of the earth includes continents and ocean floor:   4. crust

the layer beneath the earth's crust. solid, hot rock that flows slowly:         5. mantle

earth layers organized by what the layers are made of :                             1. compositional layers

cool very thin, outer most layer, on continents usually made of granite:     3. continental crust

(hope i could helppp :D )

Which of the following best explains why deforestation increases the risk of floods in an area? a. Tree leaves catch and retain rain water. B. Trees block the free flow of water. C. Deforestation increases precipitation. D. Tree roots improve soil water retention. Please select the best answer from the choices provided A B C D.

Answers

Tree roots improve soil water retention

Deforestation increases the risk of floods in an area tree roots improve soil water retention.

Why does deforestation result in higher flood risk?

When deforestation takes place, the top layer of soil can be dislodged – this is also known as soil erosion.

When the top layer of soil is unstable, it is unable to retain any of the water that falls on it, resulting in increased surface run-off, which, in turn, increases the risk of flooding.

Thus, option "D" is correct.

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What characteristic of the genetic code points to a common ancestry for all organisms?

Answers

Answer:

The code contains 64 codons. The genetic code is almost universal.All living organisms store their genetic informations using the same molecules which are DNA and RNA

Explanation:

how ribosomes help cell maintain homeostasis

Answers

Answer:

Ribosomes create the thermoreceptors of the body. Another example of a homeostatic condition maintained by proteins is blood-glucose levels. When our blood-sugar levels get too high, specialized cells in the body release a protein hormone called insulin.

Explanation:

Hope This Helps

Have A Great Day

~Zero~

Answer: Ribosomes play a key role in homeostasis. Without ribosomes, a cell would not make proteins. A cell with no ribosome would simply not function. With no protein reproduction to maintain the cell wall there would be no barrier to keep invasive bodies from damaging the inner workings of the cell, there would be no way to produce the needed proteins for rebuilding and maintaining the cell.

Hope this helps!

Do you think your classroom population is a typical representation of a larger population such as your entire school

Answers

My class can not be a representation of the larger school because my class consists of people of the same age bracket and the same level of study.

What is a representative population?

A representative population is a population that reflects the whole. A sample must be taken in such a way that it can effectively reflect the components of the whole.

My class can not be a representation of the larger school because my class consists of people of the same age bracket and the same level of study. The school is composed of different classes occupid by students of different age groups and different levels of study.

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Which of the following pairs of structure are homologous?.

Answers

The wings of grasshopper is not an Homologous structure.

What is Homologous structure?

Homologous structures are structures that have the same fundamental basic structure similar that are found in the same organisms who have the same ancesto. Examples include The forelimbs of frog, human, reptile and feathered creatures.

Therefore, the Wings of Grasshopper and forelimbs of Flying Squirrel'. are homologous structures.

The question is incomplete here are the options from another website.

the Wings of Grasshopper forelimbs of Flying Squirrel'.The tentacles of Hydra.

Learn more about homologous structures here.

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Plants help the environment by supplying ________.

Answers

Answer:

oxygen

Explanation:

hope this helps

have a good day

Plants supply oxygen and without them we’d be dead.

I hope this was helpful:)

in an ecosystem which would have a bigger population: producers or primary consumers

PLEASE HELP

Answers

Answer:

The answer would-be producers. The fact that there are primary consumers today, you would know that producers make up the bigger population. If it were smaller, the primary consumers would have eaten them all up and eventually would die out because they would have no more food source. This would be bad for all higher-level consumers.

what causes species to die?

Answers

Answer:

Environmental causes such as habitat fragmentation, climate change, natural disasters, human overexploitation, and pollution, or evolutionary changes in its members (genetic inbreeding, poor reproduction, decline in population numbers).

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