Chlorophyll molecules are embedded in the _______ within the chloroplast.

Answer:

21

Explanation:

Answer:

b) Gram-positive bacteria

Explanation:

Gram-positive bacteria stain purple during Gram staining. Gram-negative bacteria turns into red (or) pink. Therefore, the option (b) is the correct answer.

Answer:

The extinction you are referring to is unclear, as there have been several mass extinctions throughout Earth's history. However, it is generally accepted that climate has played a significant role in many of these events. Prior to some of the mass extinctions, such as the Permian-Triassic extinction and the Cretaceous-Paleogene extinction, the climate was warm and tropical with high levels of carbon dioxide in the atmosphere. This warm climate was likely a contributing factor to the extinction, as it may have led to changes in sea level, ocean circulation, and weather patterns that disrupted ecosystems and caused widespread extinction of species. However, it is important to note that climate is just one of many factors that can contribute to mass extinction events, and there are often multiple causes involved.

Answer:

b. Forward or reverse primers

Explanation:

Sanger sequencing is a technique of DNA sequencing based on the extension of DNA fragments with variable sizes terminated with dideoxynucleotides at the 3′ end. This technique was developed by Frederick Sanger in 1977. In Sanger sequencing, a short primer is added in order to bind by complementarity to the target DNA region of interest. Subsequently, a DNA polymerase adds nucleotides (A, T, C and G) in the 5'-3' direction. Finally, the extension of the DNA strand is stopped by adding dideoxynucleotides, which are nucleotide analogs (i.e., modified nucleotides) that act as DNA synthesis terminators.

When setting up a Sanger sequencing reaction, each reaction should include template DNA, nucleotides, dideoxynucleotides, buffer, DNA polymerase, and forward or reverse primers.

Sanger sequencing refers to a laboratory procedure that's used in the determination of DNA sequence by using dideoxynucleotides. Sanger sequencing is also known as dideoxy sequencing.

For Sanger sequencing to work, one needs two pieces of information that will be used to apply the strategy of sentence game to the sequencing of DNA. It should be noted that forward or reverse primers are required for the reaction.

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Answer:

B

Explanation:

because oxygen is needed for the body so we can stay alive (sorry if this wasn't the explanation u were looking for)

Answer:Natural selection occurs in nature obviously. There are quite a few reasons natural selection happens. One of the reasons natural selection occurs is because sometimes more offspring are born but not all of them survive.

Explanation:

Answer:

Adaptation feature

Explanation:

Light-sensitive cells are scattered in their outer skin, mainly at the ends of their bodies. They allow earthworms to detect light and changes in light intensity. Earthworms don't use a nose, mouth or lungs to breathe like we do. In other words, earthworms don't have eyes like we do. Instead, they can sense light through their skin. These natural light sensors let the earthworms know when they are getting too close to a bright light, such as the sun. Earthworms try to stay out of sunlight because the heat from the sun dries out their skin.

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Convergent evolution is the concept of two or more species evolving similar traits despite being completely unrelated to one another, including the absence of a common ancestor.

The Platyrrhines, more commonly known as "New World Monkeys", share many characteristics with the Prosimians. Some of these include:

and more.

The Platyrrhines and the Prosimians are both nocturnal animals. Despite all other members of their family being active during the day, the Playrrhines have evolved nocturnal habits similar to that of the Prosimians. Aside from that, they feed on insects more so than fruit, which is reflected by the layout of their teeth, and have eyesight well adapted to dark conditions. All of these are traits they share with the Prosimians.

Despite being in different ecosystems and regions, and sharing no recent common ancestors, both of these species have evolved strikingly similar traits. This can be used to corroborate the theory of convergent evolution, which explains how two species can evolve very similar traits despite being unrelated.

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Answer:

I think it is the grass.

Explanation:

Answer:

blood, vessels, oxygen, (heat, hormones), carbon (iv)oxide

Answer:

Answer is C

Explanation:

Each cell has an identical copy of DNA with enzymes controlling the expression of specific genes leading to a variety of cells

The statements 'each cell has an identical copy of DNA with enzymes controlling the expression of specific genes, leading to a variety of cells' BEST describes how different cell types develop (Option C).

In conclusion, the statements 'each cell has an identical copy of DNA with enzymes controlling the expression of specific genes, leading to a variety of cells' BEST describes how different cell types develop (Option C).

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Answer: Mutations

Explanation:

One effect of Earth's rotation is the creation of the Coriolis effect, which causes moving objects (such as wind, ocean currents, and the trajectories of projectiles) to be deflected to one side as they travel along the planet's surface. This results in the formation of rotating weather systems and ocean currents, as well as the characteristic eastward flow of the jet stream. The Coriolis effect is stronger at the poles and weaker at the equator, and it affects the direction of movement of many large-scale natural systems on Earth.

Tight-fitting respirators must seal to the wearer’s face in order to provide expected protection. This includes disposable respirators (also called “filtering facepieces”). Therefore, fit testing is required in the US by the Occupational Safety and Health Administration (OSHA) before a user wears a mandatory respirator on the job, and must be assessed at least annually. In addition, fit tests should be performed:

Whenever a different size, style, model or make of respirator is used.

When any facial changes occur that could affect fit, such as significant weight fluctuation or dental work.

A good fit means the respirator will seal to your skin. A respirator can only work when air passes through the filter. Air will take the path of least resistance, so if the seal isn’t there, the air will go around rather than through the respirator – and therefore lessen the protection.

Safety glasses, hearing protection, face shields, hard hats and coveralls can all vie with a respirator for real estate on a person’s face, head or body. For instance, if a half face respirator doesn’t fit well (especially if it’s too large), it can overlap with glasses. The more that happens, the more fogging can potentially occur on glasses, and the more likely it is that they’ll interfere with the respirator’s seal.

The learning process that occurs when the same response happens in reaction to many similar stimuli is option D: generalization.

It is significant because it enhances the possibility that the learner will be successful in completing a task without the help of a specific teacher or resources that are only available in one instructional environment. The value of skill generalization is frequently undervalued.

Therefore, The idea of generalization holds that if the conditions in the settings are deemed to be similar, humans and other animals can apply knowledge from the past to learning situations in the present.

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Answer:

the answer is generalization

Increasing life expextancy by several years.

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Answer:

Working out regularly can improve your muscle strength and boost your endurance. Moving our body delivers oxygen and nutrients to your tissues and helps your cardiovascular system work more efficiently. And when your heart and lung health improve, you have more energy to tackle daily chores.

By having more energy to do daily activities your life expectancy and quality can increase significantly.

Answer:

b

Explanation:

Answer:

crust

Explanation:

Answer:

ABA namalayan ko Yan

Explanation:

dI ko Yan alam

sorry

In concrete construction, reinforcing steel rods, bars, etc absorbs tensile, shear, and occasionally compressive stresses. Because plain concrete cannot readily endure the strain and bending stresses induced by wind, earthquakes, vibrations, and other pressures, it is unsuitable for most structural purposes. It is also responsible for holding the concrete together in the right position.

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Fat is the most energy-dense nutrient, providing 9 calories per gram.

For an organism to survive, grow, and reproduce, species needs nourishment. Carbohydrates, proteins, lipids, vitamins, minerals, and water are the broad categories that it falls under. Carbohydrates provide energy, proteins build and repair tissue, fats provide energy and help to absorb vitamins, vitamins regulate chemical processes, minerals are used in a variety of ways, and water transports nutrients and helps in digestion. Eating a balanced diet including a variety of nutrient-rich foods is essential for optimal health. A chemical compound (such as protein, fat, carbohydrate, vitamin, or mineral) contained in foods. These compounds are used by the body to function and grow.

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There are certain past occurrences that are comparable to or exact replicas of current happenings.

They keep a record of the old flora, fauna, and climates. The fossils contained therein are frequently used by scientists to determine the correct order of sedimentary rock layers.

Ripples display "tuning-fork" branches and are symmetrical. This suggests to a geologist that wave action was present during the sandstones' deposition (nearshore).

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Answer:

Cells protect their DNA by enveloping it in a nucleus

Explanation:

Answer:

Taxonomy (which literally means “arrangement law”) is the science of classifying organisms to construct internationally shared classification systems with each organism placed into more and more inclusive groupings

Explanation:

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Germination can not be observed here, but if it is a monogenic trait controlled by complete dominance, then the genotype can be homo-zygous (e.g., AA) or heterozygous (e.g., Aa).

In genetics, dominance refers to the phenomenon where one allele completely masks the expression of another allele (the recessive allele) in heterozygous individuals.

In this case, the genetic cross might be Parental 1 (AA) x Parental 2 (Aa) >> Filial 1 F1 1/2 AA + 1/2 Aa.

In conclusion, germination can not be observed here, but if it is a monogenic trait controlled by complete dominance, then the genotype can be homo-zygous (e.g., AA) or heterozygous (e.g., Aa).

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The clownfish's reproductive strategy of laying eggs near a sea anemone is a form of protection and survival for its offspring.

By laying their eggs in close proximity to the sea anemone, the clownfish provide their eggs with a safe place to develop. The sea anemone's tentacles are a powerful defense mechanism that can fend off potential predators that may try to harm or eat the eggs.

In addition to protection, the clownfish also benefit from the relationship with the sea anemone during the reproductive process. The anemone provides a clean surface on which the eggs can be attached and also helps to oxygenate the surrounding water, which is important for the development of the eggs.

The anemone's tentacles also help to keep the eggs free of harmful parasites and fungi. Overall, the clownfish's reproductive strategy of laying eggs near a sea anemone is a mutually beneficial relationship that helps to ensure the survival of the clownfish offspring.

The protection and benefits provided by the sea anemone help to increase the chances of the eggs hatching successfully, resulting in a higher survival rate for the next generation of clownfish.

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Answer:

Various environment have unique environmental properties that make up matter.

Explanation:

Answer:

The Genetic Theory Of Disease

Answer:

Germ

Explanation:it makes more sence