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Beavers build dams that build wetlands which will result to flooding. Attraction of insects is also an outcome because of the effect of flooding that will kill tress and build impediments. Other organisms will now live in the area because homes will be provided by such act. Beavers actions will increase biodiversity.

Answer - Option A

Tropism is the growth toward or away from a stimulus, and it happens to plants (it's different than movement). The tropism that's indicated can be of two types: phototropism, when the roots grows away from the stimulus of light, or gravitropism, when the roots are pushed downwards by gravity and grows towards it.

Answer:

A: lower, speed

Explanation:

Enzymes definitely speed up chemical reactions because they are proteins that act as biological catalysts. Catalysts speed up reactions without being used up themselves. They are reusable.

Lowering the activation energy makes the reaction faster because less energy is required to do the same task.

B and C do not make sense because speed activation energy doesn't make sense and slow up doesn't make sense either.

The adaptation that allows the conifers to grow so much taller than the ferns is the presence of vascular tissues such as the xylem and phloem.

The xylem and phloem are two fundamental plant tissues only present in higher plants that are required to transport nutrient products in arborous vascular plants such as angiosperms and gymnosperms.

Therefore, with this data, we can see that the xylem and phloem are two plant tissues that play essential roles in transporting nutrients to all plan tissues in higher vascular plants.

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Active transport is one of the three types of substances transport  accross the membrane. It needs energy to occur because it moves molecules against their electrochemical gradient. Pump protein and carrier proteins are involved in active transport. Phagocytosis, Endocytosis, Exocytosis, Pinocytosis are examples of active transport.

Active transport is one of the three cellular transmembrane types of transport. The other two are passive transport and simple diffusion.

Active transport acts against the electrochemical gradient, so it does need energy to transport substances.

It carries molecules from a low-concentration side of the membrane to a high-concentration side.

The energy used comes from

Carrier proteins are involved in active transport.

Pump proteins, like Na-K pump, expell Na and enters K into the cell.

Among the different types of active transport we can mention endocytosis, exocytosis, pinocytosis, and hagocytosis.

These processes refers to molecules transport mediated by vesicles. It occurs from and into the cell and needs energy to happen because it is active transport.

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Answer:

A. the cerebellum help coordinate the movement of the muscles in the body.

the topsoil is the most fertile layer of the soil, in this layer there are a great amount of nutrients and microorganisms that allow the adequate growth of plant organisms. This is why the loss of topsoil after deforestation leads to desertification.

Since topsoil is a nutrient-rich soil, it would allow the growth of plant organisms again even though it is an area exposed to mining processes. Therefore, the answer would be the B option.

Answer:the topsoil is the most fertile layer of the soil, in this layer there are a great amount of nutrients and microorganisms that allow the adequate growth of plant organisms. This is why the loss of topsoil after deforestation leads to desertification.Since topsoil is a nutrient-rich soil, it would allow the growth of plant organisms again even though it is an area exposed to mining processes. Therefore, the answer would be the B option.

Explanation:

Answer:

2 sister chromatids

Explanation:

Answer:

2 sister chromatids

Explanation:

Each chromosome composed of 2 sister chromatids . The daughter cells now close in to the 3rd and last phase of meiosis : meiosis II .

Answer:

If a food has less than 0.5 grams of saturated fat in the serving size on the label, the food maker can say it contains no saturated fat. Remember this if you eat more than 1 serving. You should also pay attention to trans fats on any food label. These fats raise "bad" cholesterol and lower your "good" cholesterol.

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answer and explanation

Option A. Both sodium and potassium ions are transported against their concentration gradient.

A concentration gradient happens when the attention of particles is better in a single area than in every other. In passive shipping, particles will diffuse down a concentration gradient, from areas of better awareness to areas of decreased concentration, until they are frivolously spaced.

A concentration gradient happens when the concentration of debris is higher in a single vicinity than in some other. In passive transport, debris will diffuse down a concentration gradient, from areas of higher awareness to areas of decreased awareness, till they're frivolously spaced.

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Deforestation can have destructive effects on soils. Trees and shrubs shield the ground from the force of raindrops and provide shade that reduces surface soil temperature, which in turn reduces evaporation. Logging and small-scale removal of trees exposes soil to rain splash which loosens and dislodges soil particles, eroding soil and creating a more impermeable bare surface, which increases runoff.

It was found that the majority of soil fertility indices were affected negatively by deforestation and more than half of the organic matter was lost to deforestation, which, in turn, could lead to deterioration in soil quality or land productivity capacity.

Answer:

In United States constitutional law, a Due Process Clause is found in both the Fifth and Fourteenth Amendments to the United States Constitution, which prohibits arbitrary deprivation of "life, liberty, or property" by the government except as authorized by law.

The volume of the solution is obtained as 0.056 µL.

We know that the term concentration refers to the amount of substance that is present in a sample. In this case, we are told that you have a plasmid DNA concentration of 178.9 ng/µL. We are now being asked for the volume of the sample that is needed so that we can have 10 ng DNA final concentration.

Let us now look at the parameters that we have from the question and these are;

Concentration =  178.9 ng/µL

Mass of the sample = 10 ng

Volume of the sample = ???

We know that the volume is going to be obtained as the ratio of the mass to the concentration of the solution from the data that we have and have been itemized in detail above.

Given that we have;

Volume = mass/concentration

Volume = 10 ng /178.9 ng/µL

Volume = 0.056 µL

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The case the exersice tells is an example of how introduced subtances to a particular environment have a negative impact on the species' health, as states the C answer option: "factors in the environment can change the characteristic

Answer: A.

Explanation: A ligament is a fibrous tissue that connects bone to bone. Usually holds to serve as a structure together and keep them stable.

If number 1 is the single strand within the nucleus, it is mARN or messenger ARN. mARN has the genetic information needed to make proteins and carries this information from the DNA nucleus of the cell, to the cytoplasm where proteins are made.

Interneurons are responsible for connecting sensor neurons and motor neurons by transferring signals and communicating with each other.

A way deforestation can be prevented could be with socialization campaigns that help more people know, for example, the impacts these practices have upon the wildlife. The solution in specific countries can vary in the sense that different governments implement different practices and depend on the forest's resources differently.

the answer is interpretation thei field notes where they try to interpret what was in the field and reconstruct the events that took place

Answer:

because it helps guide and if inform choices

Explanation:

A nucleotide if formed by three parts: a phosphate group, a pentose (deoxirribose) and the nitrogenous bases (A, T, G and C).

Nucleotides are linked by phosphodiester bond, while nitrogenous bases are linked by their complementary base (Adenine with Thymine and Guanine with Cytosine) by hydrogen bonds.

Answer

C

Explanation

Topsoil is the most fertile layer of soil, it is rich in microorganisms, humus and minerals.

Drugs use different mechanisms to incorporate and fixate into the hair, and these are useful to determine if a person is currently consuming drugs or not, and for how long. Option B) Drug use is currently happening.

Several studies have been done to explain drug incorporation mechanisms in hair. Among different mechanisms, the most significant ones are,

Usually, before making a drug analysis, hair must be washed to avoid considering external environmental drugs deposited on hair (the last option).

Once drugs incorporate into the hair, they bond to different components composing highly stable complexes that can not be altered for several years. In fact, drugs can remain in the hair for hundreds of years.

According to this information, if after the analysis drugs were only found in the hair root, it might suggest that drugs are recently and currently being consumed.

Option B is correct. Drug use is currently happening.

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Answer: The answer is C

Drug use stopped several weeks ago!

Explanation:

I got it right on the Exam! Hope I helped :)

RNA primers are short dna sequences. In DNA replication, primers pair up with sequences on the lagging and leading strand kickstarting the whole process of replication.

Nucleotides are composed of a sugar molecule (ribose in RNA and deoxyribose in DNA), a phosphate group and a nitrogen-containing base (which can be Adenine, Thymine, Guanine and Cytosine in the case of a DNA). Of those three parts, the only one that changes (and therefore identifies the nucleotide) is the nitrogen containing-base. Therefore, the correct answer is C. base.

The next steps the scientists should take to determine the exact difference is that they should look at the sequence of genes in the DNA bases for that trait.

Genes- The fundamental structural and operational component of heredity is a gene. DNA is the component of genes. Some genes serve as blueprints for the synthesis of proteins. Many genes do not, however, code for proteins. The few thousand DNA bases to even more over 2 million bases make up a gene in a human.

DNA- The information molecule is DNA. It contains information needed to create proteins, which are other big molecules. These instructions are dispersed throughout 46 lengthy structures called chromosomes that are found inside each of our cells. Numerous smaller pieces of DNA, known as genes, make up these chromosomes.

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Diabetes can cause high blood glucose levels, which can harm your blood vessels as well as the nerves that regulate your heart and blood vessels. Heart disease may eventually result from this injury.

Those who have diabetes typically have heart disease at a younger age than those who do not. When compared to those without diabetes, adults with diabetes have approximately twice the risk of developing heart disease or stroke.

The good news is that actions you take to control your diabetes can also help reduce your risk of developing heart disease or stroke.

However, after the majority of the cells that generate insulin are destroyed, the pancreas is unable to produce enough of it, which prevents the glucose from entering the cells and causes an excess of glucose to be produced of dissolved blood sugar floating through the circulation. Risky complications may result from this. The name of this ailment is diabetic ketoacidosis.

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Bison, like cows and elk, have four stomachs. While you might think that bison can eat four times as much as animals with only one stomach, this is not the case.

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