what's the best way to study for a final exam in 2 days??​

Answer:

to inform the teens labeling business

Answer:

Advection by ocean currents modifies phytoplankton size structure at small scales (1–10 cm) by aggregating cells in different regions of the flow depending on their size. This effect is caused by the inertia of the cells relative to the displaced fluid

senescence, such as through injury, poison, disease,..

Answer:

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Explanation:

When the body undergoes exercise, your body needs more energy, which means your tissues consume more oxygen than they do at rest.

Consuming more oxygen means you will also produce more carbon dioxide because your metabolic rate is elevated.

Answer:

During exercise, blood spends up to half the normal time (one second at rest) in the pulmonary capillaries due to the increase in cardiac output moving blood around the body more quickly.

Explanation:

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Answer:

Through the process of natural selection, sea urchins have developed spines that serve as a defense mechanism against predators and a means of anchoring themselves in turbulent waters. This adaptation allows them to better survive in their environment, with individuals possessing longer or stronger spines being more likely to pass on their genes to the next generation. As a result, the population of sea urchins gradually becomes better adapted to their surroundings, demonstrating the power of natural selection in shaping the evolution of species.

The nutrient which provide more energy is C. Lipids

Among the given options, lipids provide the most energy per unit mass. Lipids, also known as fats, are a concentrated source of energy in the diet. When metabolized, lipids yield approximately 9 kilocalories (kcal) of energy per gram.

Carbohydrates, including sugars and starches, provide approximately 4 kcal of energy per gram. They are a readily available source of energy for the body, particularly for short-term energy needs. Proteins also provide approximately 4 kcal of energy per gram. However, their primary role is not as an energy source but rather as the building blocks for tissues, enzymes, and other important molecules in the body.

Vitamins, on the other hand, do not provide significant energy. They are essential for various biochemical processes in the body but do not contribute directly to energy production.

It is important to note that while lipids provide the most energy per gram, the overall balance and variety of nutrients in a diet are crucial for maintaining optimal health. Nutrient needs vary based on individual factors, such as age, sex, activity level, and overall health goals. Therefore, Option C is correct.

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Answer:

The correct answer is - 0.72 pg.

Explanation:

A we know that, genetic material present in one primary spermatocyte divides in between four sperm cells that means that each sperm cell has 25 percent of DNA or genetic material of the primary spermatocyte.

Given:

1 sperm cell = 0.18 nuclear DNA

So,\(DNA content of one sperm cell = \frac{\text DNA content of primary spermatocyte}{4}\)

0.18*4 = DNA content of primary spermatocyte

DNA content of primary spermatocyte = 0.72 picogram

Answer:

Step 1-Light Dependent. CO2 and H2O enter the leaf.

Step 2- Light Dependent. Light hits the pigment in the membrane of a thylakoid, splitting the H2O into O2.

Step 3- Light Dependent. The electrons move down to enzymes.

Step 4-Light Dependent. ...

Step 5-Light independent. ...

Step 6-Light independent. ...

calvin cycle.

Explanation:

The correct order of steps that are involved in photosynthesis are as follows:

Photosynthesis may be defined as a type of process through which green plants and some photosynthetic algae synthesize their own food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.  

The complete reaction of photosynthesis is as follows:

The process of photosynthesis gets accomplished in two parts. One is a light-dependent reaction and the other is a light-independent reaction. The sites for both these two processes are different, One occurs in the thylakoid of the chloroplast while the other is in the stroma.

The products formed are also different in both processes. One involves the direct utilization of light from the sun while the other in the presence of indirect sunlight.

Therefore, the correct order of steps that are involved in photosynthesis are well described above.

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Take the objective's (4X, 10X, or 40X) power and multiply it by the eyepiece's (often 10X) power to get the overall magnification.

A microscope is a tool that can be used to examine tiny objects, including cells. Via at least one lens, the microscope magnifies the image of an object. This lenses bends light in a way that causes it to look as though an object is bigger than what it really is.

The majority of the scientific community now uses microscopes, which are a mainstay in study in life sciences because to improvements in imaging. They are frequently employed to scan nanomaterials, examine clinical specimens, and study various cell kinds.

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The match for the given scenario will be 1-B, 2-E, 3-F, 4-A, 5-D, 6-C, and 7-G.

An experiment is a methodology that is conducted out to confirm or disprove a hypothesis, or to assess the effectiveness or possibility of a method that has never been tried before.

A hypothesis is an educated guess about a problem's solution. Control is used to demonstrate that the outcome of an experiment is truly due to the condition under test.

The component that is manipulated during an experiment is known as the dependent variable. Experiment is a structured process for testing a hypothesis.

A conclusion is a decision based on the outcomes of an experiment. Observations and dimensions are recorded as data.

The response measured in an experiment is known as the independent variable.

Thus, the correct match is 1-B, 2-E, 3-F, 4-A, 5-D, 6-C, and 7-G.

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Answer:

True

Explanation:

Answer:

True.

Explanation:

Extinction vortex is a model used by scientists to understand extinction dynamics within a community. This model allows scientists to assess and understand how a population can become highly vulnerable to elements of its habitat, becoming increasingly apt for extinction. According to this model, any organism is capable of extinction, as all are susceptible to having a gene pool that will not allow its survival, regardless of the environment.

Answer:

The translation is affected by ribosomes moving along mRNA in the 5′ → 3′ direction. A set of tRNA molecules brings amino acids to the moving ribosome, their anticodons binding to codons exposed on the ribosome.

I hope this helps

Answer:

The correct answer is - add a few bases for DNA polymerase

Explanation:

A short extended nucleic acid composed of ssRNA molecule. This is a molecule that synthesize a primer initialy and later again lay down a primer after the opening of replication fork by DNA helicase.

It sysntheisze before and after the helicase and follow the helicase in order to prepare for the replication process. Thus, adding a few bases for DNA polymerase is main job of RNA primase.

The cell membrane's inside is hydrophobic, meaning that water won't cling to it. In order to effectively separate fluid inside the cell from fluid outside the cell, phospholipids form a two-layer cell membrane.

Large hydrophilic polar or ionic molecules find it difficult to pass through the phospholipid bilayer. The cell membrane prevents the passage of any size charged atoms or molecules.

While the tails (the lipid component) are non-polar, the heads (the phospho part) are polar. The tails, which face the inside of the cell membrane, are "hydrophobic" (fearful of water), whereas the heads, which make up the exterior and inner linings, are "hydrophilic" (lovers of water).

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Answer:

A neurologist specializes on spinal injuries so he/she would be treating Luke.

Answer:

this behavior was learned by observing other fish species

Explanation:

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Explanation:

To keep it simple a tree is comprised of its leaves, stems, trunk and its roots. When you look at a tree, note that about five percent of the tree is comprised of its leaves, 15 percent its stems, 60 percent goes into its trunk and 20 percent is devoted to its roots.

Scientist think the first step in the origin of life on earth is Organic molecules formed in oceans as Earth began to cool. Option D

There are a handful of theories about how life may have first come to be on our planet.

Scientists hypothesize that the first step toward the origin of life on Earth was the formation of simple organic molecules such as amino acids, nucleotdes, and sugars.

While the exact origin of life on Earth is still a mystery, scientists are always working to learn mre about how life may have startd.

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The scientist think the first step in the origin of life on earth is  D) Organic molecules formed in oceans as Earth began to cool.

It was recorded  that the Microbes,  which is the earliest known life forms, left traces of their existence in rocks that were 3.7 billion years old.

However different scientist have their own discoveries, Oparin discussed the idea of a chemical origin for life whereby the biochemical beginning of life as suggested by Oparin and Haldane cannot have taken place on the planet as it is today.

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Answer:

Cold blooded Animals

Explanation:

Cold-Blooded Animals

Cold-blooded animals cannot control their own body temperatures. They adapt to the temperature of their surroundings. When it's very cold outside, their body temperature decreases.

False. The trachea is a separate passageway dedicated to the respiratory system. While it is located near the esophagus, it is not shared with the digestive system.

The trachea is located in the neck and thorax, and is a part of the respiratory system. It is a tube-like structure that connects the larynx to the bronchi of the lungs.

The larynx, also known as the voice box, can be found in the neck at the very top of the trachea, just below the pharynx and above the thyroid gland.

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The complete question is:

air enters the nasal cavity where it is warmed, filtered and humidified the larynx contains the vocal folds necessary for sound production. the pharynx is found in the neck and upper portion of the thorax. the trachea is a region of the respiratory tract that is shared with the digestive system. True or False.

The backbones of DNA and RNA are made of alternating sugars and phosphate groups. So the correct option is A.

Nucleic acids are macromolecules that will be formed by a column of phosphates and sugars, this will give support to the molecules. This type of union is quite stable since they are difficult to break and not any enzyme can break it. Nucleotides are made up of nitrogenous bases, a sugar, and a phosphate group. The phosphate will be a high energy bond.

Nucleic acids will carry information that will be hereditary and they will have the information to be able to produce proteins. These macromolecules will be stored mainly in the nucleus of the cell.

Therefore, we can confirm that the correct option is A. made of alternating sugars and phosphate groups.

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Answer:

100 AMINO ACID

EXCEPTIONAL CASE:

If STOP CODON is also present mRNA then 99 amino acids are present in protein

Explanation:

set of 3 nucleotide on mRNA = codon

1 codon = 1 amino acid

AS PER QUESTION THERE ARE

99 amino acids are there in the resulting protein.

Each amino acid corresponds to codons; sequences of 3 base pairs.

If you have 300 base pairs, you get 100 codons.

However, you only get 99 amino acids in the protein as the last codon is a stop codon with terminates protein synthesis.

300 base pairs=100 codons=99 amino acids.

In 1 amino acid there are 3 nucleotides.

In mRNA, three-nucleotide units called codons dictate a particular amino acid.

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A natural, non-renewable fuel such as coal, oil, and natural gas formed over millions of years from the remains of dead organisms is fossil fuel.

Because they were generated from the petrified, buried remains of plants and animals that once lived millions of years ago, coal, crude oil, and natural gas are all referred to as fossil fuels.

Oil, natural gas, coal, and nuclear energy are the four main categories of nonrenewable energy. Fossil fuels are a term that refers to coal, natural gas, and oil together. The term "fossil fuels" refers to the fossilized remains of plants and animals that were produced deep within the Earth over millions of years.

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complete question:

What is a natural, non-renewable fuel such as coal, oil, and natural gas formed over millions of years from the remains of dead organisms?

Answer:

A type of allele which will not be manifested in an individual unless both of the individual's copies of that gene have that particular genotype.

Explanation:

Food grains are stored in the warehouse or granary for future use to maintain the production and supply of food in the country and it is also considered as a security measure for the farmers and government agencies.

The grain storage system is important to preserve the nutritional value of the food grains and avoid the losses incurred due to pests, rodents, and other natural calamities such as floods and droughts.

Food grains are the essential components of the human diet, and they need to be stored with utmost care and caution. The quality of food grains plays a crucial role in ensuring the food security of the country. The farmers and the government agencies take care of storing the food grains in the warehouses, which are usually built in the proximity of the grain-producing areas. These warehouses should be equipped with the latest technologies and tools to ensure the safe storage of food grains.

The government also provides subsidies and financial support to the farmers to build their warehouses to store the food grains. The food grain storage system is crucial for ensuring the continuous supply of food and for the survival of the farmers, especially in the developing countries.

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The ATP cycle consists of two steps: ATP hydrolysis, which releases energy that may be utilised to drive endergonic events, and ATP synthesis, which uses the energy generated by exergonic reactions. Hence, choices B and C are the right ones.

The ATP cycle is the procedure by which ATP (adenosine triphosphate) is changed into ADP (adenosine diphosphate). The addition and removal of one phosphate molecule during glycolysis is another way to describe it.

The cyclic conversion of ATP to ADP and then back to ATP is known as the ATP cycle. The three phosphate groups in ATP may be broken down to generate ADP, which releases energy that can be utilised by cells to carry out numerous cellular functions.

The production of ATP utilising energy and the hydrolysis of ATP to power cellular activity are the stages that make up the ATP cycle. Hence, choices B and C are the right ones.

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