¿Que aspecto debemos considerar para desidir el uso mas adecuado de lagunos materiales en la satisfacción de necesidades humanas sin afectar la salud y el medio ambiente?

Answer:

The activation energy must be reached. The catalyst makes lower energy pathways available.

Explanation:

During the main sequence stage of the life cycle of a star, it cycles, appearing brighter and dimmer in turns.

The life cycle of a star is a cycle which describes the time from the birth or formation of the star, through its growth and expansion, and then finally the death of the star.

The life cycle of a star occurs in seven stages and occurs over billions of years.

One of the stages is the main sequence stage.

During the main sequence stage of a star's life, it cycles, appearing brighter and dimmer in turns.

Therefore, the life cycle of a star is a cycle from the birth to death of the star.

Learn more about life cycle of a star at: https://brainly.com/question/26172232

#SPJ1

Answer:

Explanation:

This is an example of a mixture which can be separated with simple separation techniques based on the physical properties of the mixtures.Magnetism, and filtration and evaporation

Iron is a magnetic material,but salt and sand are not,Therefore,the iron can be separated from the mixture with the use of magnet.

Salt and sand are mixable.But salt is soluble in water,but sand is not.Therefore by adding the sand and salt to water,the salt will  dissolve,in the water(solvent) to form a salt solution. But the sand can be separated out of the solution by  filtration with the  filter paper inserted into a funnel which allows the salt solution to pass through,while restricting the sand.

The sand would be removed by the filter paper,while solution passes through.

The salt solution and some sand residues is placed in evaporating dish and heated at low temperature. The water from the solution evaporates,leaving the salt behind.

A combination of two are more substances that is not chemically combined is called a mixture.

In order to separate a mixture of iron, salt and sand, we need  a magnet, water, a filter and a hot plate. The magnet is brought close to the mixture and all the iron is removed.

Next, water is added. The water will dissolve the salt while the sand will settle beneath the vessel. The solution can now be filtered and the sand is removed. To recover the salt, the solution is heated using the hot plate until all the water is evaporated and the dry salt is recovered from solution.

Learn more: https://brainly.com/question/8592296?

Answer:

The trophic level of an organism is the position it occupies in a food web. A food chain is a succession of organisms that eat other organisms and may, in turn, be eaten themselves. The trophic level of an organism is the number of steps it is from the start of the chain.

Answer:

Hello. You did not put the options, but we can say that the execution of mitosis is what makes it important that the proportion between the colume and the cell surface area is not small.

Explanation:

The ratio between the surface area of ​​a cell and the volume is very large and this is essential for mitosis to occur and for all cells in the same tissue to have the same content and the same drum.

If a cell increases ten times its surface area, it will increase its volume a thousand times. This shows that the cell volume has a much larger proportion than the surface. This makes the cell have a fast metabolic rate and needs to absorb many nutrients, in addition to making a strong exchange of gases with the external environment. This absorption of nutrients so intense, is essential for the cell to enter mitosis and generate two equal cells. This is because during the growth phase the cell will increase in volume until the growth limit of its surface area, once this limit is reached, the cell will have to undergo mitosis and will have enough nutrients for the entire process.

Answer:

1.0 × 10-7 milligrams

Explanation:

1.0 × 10-7 milligrams

Answer:

Plants fibers are obtained from cotton plants and jute plants.

Explanation:

Answer:

The virus lacks strcutures to replicate genetic material.

Explanation:

They can replicate it, but don't have structures to do it without the help of a cell. They USE the cell to replicate it but cannot do it themself.

Virus lacks genetic matrial? It has DNA.

Protective outer shell? Ptotection has nothing to do with it.

Movement? They cannot duplicate without cells.

Answer:

or, 3x+1=0   or,  1+0=3x  or, 1=3x  or, x=3-1  or, x=2

Explanation:

Answer: DNA codes for our genotype, which is the genetic representation of out traits. There are multiple kinds of RNA but it is mostly used to aid the replication of DNA.

Explanation: DNA is the strand of nucleic acid, sugars and phosphate group, that is found in the nucleus and mitochondria of every cell. It codes for our genotype, which is essentially the written representation of our traits. There are multiple kinds of RNA but they are mostly used to replicate DNA, they are single stranded as opposed to the double stranded DNA and include the nitrogen base uracil (U), instead of thymine (T). mRNA, tRNA and dsRNA are commonly used to replicate and regulate the DNA sequence.

Answer:

The two main types of nucleic acids are DNA and RNA. Both DNA and RNA are made from nucleotides, each containing a five-carbon sugar backbone, a phosphate group, and a nitrogen base. DNA provides the code for the cell 's activities, while RNA converts that code into proteins to carry out cellular functions.

Explanation:

RNA:

The central dogma of molecular biology suggests that the primary role of RNA is to convert the information stored in DNA into proteins.

DNA:

The main role of DNA in the cell is the long-term storage of information. It is often compared to a blueprint, since it contains the instructions to construct other components of the cell, such as proteins and RNA molecules.

I HOPE IT HELPED

Answer:

vbfxb

Explanation:

vgjjg

Answer:

The body has two lines of natural defense to protect against infection. The first are physical barriers, such as the skin, body secretions and mucous membranes. The second line of defense is the immune system. Specialized immune cells coordinate and execute attacks to kill germs that make it past the body's physical barriers.

Answer:

I think its B. CO2

Explanation:

Oxygen is only needed for eukaryotes so not A

ATP is the product of prokaryotes

And I highly doubt its salt

ATP is essential to the proper functioning of all prokaryotic and eukaryotic organisms.

For example, biochemical reactions in mitochondria switch power from fatty acids and pyruvate molecules into a power-wealthy molecule referred to as adenosine triphosphate (ATP). Subsequently, the relaxation of the organelles uses this ATP because of the supply of the power they want to operate.

Each organelle helps one-of-a-kind sports inside. Mitochondria, for example, are organelles that offer eukaryotes a maximum in their power with the aid of using generating power-wealthy molecules referred to as ATP. Prokaryotes lack mitochondria and rather produce their ATP on their floor membrane

The feature of ATP synthase is to synthesize ATP from ADP and inorganic phosphate (Pi) withinside the F1 sector. This is viable because of power derived from a gradient of protons which move the internal mitochondrial membrane from the intermembrane area into the matrix via the Fo part of the enzyme.

Hence concluded that ATP is essential to the proper functioning of all prokaryotic and eukaryotic organisms.

To know more about ATP refer to the link :

https://brainly.com/question/25921566

Answer:

Observations; control.

Explanation:

A hypothesis is considered to be tentative or an educated guess and can be defined as a testable explanation for an  observation or a scientific problem. An example of a hypothesis is saying, Corona virus is caused by the introduction of the "5G" technology.

On the other hand, a control experiment  can be defined as an experiment in which a condition assumed to be a probable cause of the effect is being compared to the same  situation by the scientist without involving or using the suspected condition.

Hence, science rejects any hypothesis not supported by observations and the results of control experiments.

This ultimately implies that, for any hypothesis to be acceptable in science, it must be supported by observations and the results of control experiments; this give rise to factual informations, theories and by extension solutions to problems.

Answer:

Deoxyribonucleic acid

Explanation:

Answer:

Each protein is made up of a unique number and order of amino acids. The protein that is created has a specific job to do or a specific tissue such as muscle tissue to create. The structure of amino acids is fairly simple. Each amino acid has an amino group at its core with a carboxyl group and a side chain attached.

Explanation:

Hi, Im answering this question so you can mark the other pesron who had and amazing answer branliest :)

Answer: Prokaryotes lack an organized nucleus and other membrane bound organelles.

Explanation: DNA found in the central part of the cell, noticed by the name nucleoid.

11. D

12. C

13.

14.

15.

thats all I know, hope it helped

Answer:

Primary Structure

Explanation:

The simplest level of protein structure, primary structure, is simply the sequence of amino acids in a polypeptide chain.

Answer:

C      Using large sample sizes and multiple replications of an experiment

Explanation:

Answer:

b) they contain different five-carbon sugars and a different nitrogenous base

Explanation:

DNA is deoxyribonucleic acids contains thymine

RNA is ribonucleic acid and contain uracil

Answer:

One I know is dictatorship.

Explanation:

example stalin was the dictator of russia and had passed many laws that nobody else had a say in and would kill or send to prison any peapole who attemed to opose him.

Answer:

Euryarchaeota

Explanation:

Ferroplasma

Scientific classification

Domain: Archaea

Kingdom: Euryarchaeota

Phylum: Euryarchaeota

Answer:

i think its a tissue

Explanation:

Sorry if i get it wrong