i am horrible at science. please help

Answer:

⬇️

Explanation:

small changes in energy use like switching to water & wind based systems can reduce carbon pollution and create a better energy creating source.

Answer:

d

Explanation:

So, when a person or any object has extra electrons, it creates a negative charge. These electrons thus get attracted to positive electrons (as opposite attracts) of another object or person and vice versa. The shock that we feel sometimes is the result of the quick movement of these electrons.

The rubbing of certain materials against one another can transfer negative charges, or electrons. For example, if you rub your shoe on the carpet, your body collects extra electrons.

Answer:

d. Friction between two objects causes a transfer of electrons from one object to  the other.

Explanation:

If electrons are transferred by rubbing two objects together, the result of the friction is that one object becomes positively charged by losing electrons, and the other object becomes negatively charged by gaining them. This is known as static electricity.

Answer:

1-Traveling is going from one place to another different place.

Circulating is going around the same place.

2- Abnormalities such as aneurisms or an arterial malformation, an abnormal malformation of the blood vessels or any internal injury.

Explanation:

Answer:

A

Explanation:

fresh water is hypotonic to the fish cell,that means water will diffuse into fish cells by osmosis because a hypotonic solution contains low solute concentration.

Answer:

Explanation:

what do you think is a way for geologist to locate ore bodies? justify your answer​

From my research, there is lots of information on how to extract ore, but I can't find any information on how these ore deposits are found in the first place, apart from 'looking for surface formations'. So, what kind of formations would exist for different types of ore? Are there any other ways of finding ore?

Answer:

both at this point the temperature is gonna most likely be climate change and weather is going to be the raining the tornadoes and all tht other stuff you mentioned

Explanation:

Answer:

orion, big and little dipper and cancer.

Explanation:

Those are my thoughts I hope this helped.

Answer: The options are not given, here are the options.

a. located in the space outside the nucleus.

b. spread evenly throughout an atom. c. concentrated at multiple sites in an atom.

d. concentrated in the center of an atom.

The correct option is D.

concentrated in the center of an atom.

Explanation:

In an atomic model, the atomic particles has the nucleus which is located at the center of the particle. This nucleus contain positive charge which is called proton at the center and the neutrons(no charge). The electrons is located out side the particle she'll or nucleus and atomic particles become neutral because the number of protons is equal to the number of electrons which is negatively charge orbiting outside the nucleus.

Answer:

1. Stores DNA

2. The nucleus is NOT the site of protein Assembly

3. Lysosome

4. Helps a cell keep its shape

5. Lysosomes store materials

Explanation:

Answer:

I'm guesssing it's B? I did this a very long time ago( two weeks ago)

Explanation:

Most divergent plate boundaries are underwater and form submarine mountain ranges called oceanic spreading ridges. While the process of forming these mountain ranges is volcanic, volcanoes and earthquakes along oceanic spreading ridges are not as violent as they are at convergent plate boundaries.

Answer:

it would be (d) amount of pressure in the air caused by gravity and matter moving on all objects

Explanation:

d. amount of pressure in the air caused by gravity and matter moving on all objects.

Thus, the correct statement that describes air pressure is the amount of pressure in the air caused by gravity and matter moving on all objects i.e. option d.

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It's Sedimentary and the name of the rock is Conglomerate

Answer:

More tissues.

Explanation:

Each organ is made up of several different types of tissue. Therefore, for every organ in the body, there are many more tissues.

Answer:

one

There may be many possible alleles for any gene, but a diploid cell or animal contains only two alleles of each gene or two copies of a single allele; a haploid gamete contains one copy of each gene, so only one allele.

Answer:

to cut DNA into fragments of different lengths

Explanation:

A restriction enzyme is a protein that recognizes a specific, short nucleotide sequence and cuts the DNA only at that specific site, which is known as restriction site or target sequence.

More than 400 restriction enzymes have been isolated from the bacteria that manufacture them. In live bacteria, restriction enzymes function to defend the cell against invading viral bacteriophages. Restrictions sites in the viral genome (a "happy accident" of nature, as far as the bacteria are concerned, since they don't appear to have any specific function in the virus) are cleaved by the bacterium's restriction enzymes, fragmenting and destroying the DNA of invading bacteriophages before it can incorporate into the host's genome and take over the cell.

A bacterium is immune to its own restriction enzymes, even if it has the target sequences ordinarily targeted by them. This is because the bacterial restriction sites are highly methylated, making them unrecognizable to the restriction enzyme.

Isn't evolution fantastic?

The correct answer is option C i.e. to cut DNA into fragments of different lengths.

A restriction enzyme is a bacterial protein that cleaves DNA sequences at sequence-specific places, resulting in DNA fragments with known sequences on both ends.

Certain laboratory processes, such as recombinant DNA technology and genetic engineering, require the use of restriction enzymes.

There are four different types of restriction enzymes: type I, II, III, and IV, which differ principally in structure, cleavage site, specificity, and cofactors.

Both restriction and methylase functions are carried out by a single big enzyme complex in Types I and III enzymes.

The restriction enzyme is independent of its methylase in the Type II system.

Several thousand type II restriction enzymes have been identified from a variety of bacterial species.

These enzymes recognize a few hundred distinct sequences, generally four to eight bases in length.

Type III restriction enzymes are a group of endonucleases that recognize a non-pallindromic sequence, comprising two inversely oriented sites.

Type IV restriction enzymes cleave only methylated DNA and show weak sequence specificity.

hence, the correct answer is option B.

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Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.

The oxygen cross into the cell as water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion has been one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.

Osmosis has been the process in which molecules of the solvent pass via a semipermeable membrane from a lower concentrations to higher concentration or from less concentrated solution to high concentrated solution. In the process of the osmosis movement of the water takes place.

There are mainly three types of the osmosis and these are hypertonic, hypotonic, and isotonic. The process of osmosis has been passive transport as water moves from low solute concentration to high solute concentration.

Osmosis has been also known as diffusion of water or solvent via a membrane which allows only selective substance to go across the channel. The process of osmosis does not require ATP because it is a passive process.

Therefore, The oxygen cross into the cell as water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion has been one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.

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Answer:

asthenosphere

Explanation:

Answer:

meow mix

Explanation:

meow mix is a natural cat food mix for all breeds.

Answer:

Two cell divisions after DNA replication

Explanation:

After the DNA is replicated, the cell undergoes two rounds of meiosis to produce 4 cells, each wIth 23 chromosomes. This is how the cell goes from a diploid to a haploid state.

Answer:

C

Explanation:

The nitrogenous base can change

Explanation:

Biologists have discovered that the reason behind the decline of fireflies is habitat loss, light pollution and excessive light; excessive light can disrupt the insects mating ritual.

Answer:

I had to attach my response, as Brainly wrongly marked it as profane. I hope this helps!

Answer:

cell membrane and cytoplasm/cytosol

Explanation:

Answer:

Pig

Explanation:

Pig valves are already used successfully in heart transplants. Human-to-human organ transplantation has only been around since the 1950s, and scientists have been working on animal-to-human transplants for almost that long. In the '60s, Keith Reemtsma experimented with transplanting chimpanzee kidneys into humans.

Answer:

Pig

Explanation:

This process is called Xenotransplantation. The animal organ, probably from a pig or baboon could be genetically altered with human genes to trick a patient's immune system into accepting it as a part of its own body. (Wikipedia)