Explain what "extinction" means

A researcher is looking at mutations. She notices a mutation in which a DNA sequence has had one or more nucleotides added. This insertion mutation, according to the expert, will impact genetic diversity. The researcher is right.

Yes, the scientist is correct. Insertion mutations can have a significant impact on genetic variability by altering the DNA sequence and potentially leading to changes in the resulting protein.

These changes can affect the structure, function, and activity of the protein, which can in turn affect the traits and characteristics of an organism. Therefore, insertion mutations can contribute to genetic diversity within a population, which is important for the survival and evolution of species.

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Answer:

oxygen

Explanation:

Answer:

The two processes are similar in that they both produce energy, but in two different forms.

Explanation:

They both provide each other with the necessary ingredients for the process to take place: glucose and oxygen for cellular respiration, carbon dioxide and water for photosynthesis.

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Answer: Most jellies use a form of jet propulsion to move through seawater. ... This is what most jellyfish do. They squeeze their bodies in order to push jets of water from the bottom of their bodies to propel the jellyfish forward. Now check out another method of jellyfish propulsion, used by the comb jellyfish.....Aequorea jellies glow with a bioluminescent protein used in the biotechnology industry. ... Bioluminescence is light produced by a chemical process within a living organism. The glow occurs when a substance called luciferin reacts with oxygen. This releases energy, and light is emitted....Jellyfish seem to blend in with their environment, undulating gently with the ocean's currents, and with good reason: Their bodies are made up of as much as 98 percent water, says How Stuff Works. When they wash ashore, they can disappear after just a few hours as their bodies evaporate into the air.

Explanation:wow look how dumd I am -_-

Answer: the first one

CCU is Proline (pro)

GAG is Glutamic Acid (glu)

AAG is Lysine (lys)

Explanation:

Production of chlorofluorocarbons (CFC) gas which is proposed to be banned in India, is used in refrigerators.

The correct option is B

Chlorofluorocarbons and hydrochlorofluorocarbons are formed as volatile derivatives of methane, ethane, and propane. They are fully or partially halogenated hydrocarbons that contain carbon, hydrogen, chlorine, and fluorine. Freon, a brand name owned by DuPont, is another frequent name for them.

They were used formerly as refrigerants in refrigerators. However, it was discovered that the ozone layer in Earth's atmosphere, which shields the planet from the sun's harmful UV rays, might be destroyed by chlorofluorocarbons (CFCs). CFCs were widely utilized as refrigerant gases and as propellants in aerosol sprays when the scientists published their findings in 1974.

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In order for an organism to exhibit continuation of its kind, REPRODUCTION is essential. The correct option is A.

Reproduction is the biological process through which new individuals of the same species are produced, ensuring the perpetuation of the species.

It involves the formation of reproductive cells (such as sperm and eggs) and their fusion to create offspring. Reproduction allows for the passing on of genetic material, ensuring the preservation of genetic traits and diversity within a species.

While metabolism, irritability, adaptability, and response are important processes for an organism's survival and functioning, it is through reproduction that the species can ensure its long-term survival and continuation.

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Answer: simple diffusion, the alveoli

Explanation: The oxygen enters the bloodstream from the alveoli, tiny sacs in the lungs where gas exchange takes place (Figure below). The transfer of oxygen into the blood is through simple diffusion.

Answer:

Carbon Cycle

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What role do producers, consumers, and decomposers play in the carbon cycle?

~ Producers synthesize their food through photosynthesis using energy from sunlight and carbon dioxide from the air. Their respiration returns carbon dioxide to the atmosphere. Consumers use the food produced by producers for energy. Their respiration also returns carbon dioxide to the atmosphere. Decomposers break down plant and animal waste products. They also break down dead plants and animals. The decomposing process releases carbon dioxide gas into the atmosphere.

How do fossil fuels and volcanic activities contribute to the carbon cycle?

~ When fossil fuels are burned, carbon dioxide is released into the atmosphere in the form of gas. When volcanoes erupt, carbon dioxide that was in the magma passes into the atmosphere as carbon dioxide gas.

How is carbon returned to the Earth and sea in the carbon cycle?

~ Carbon is returned to the Earth and sea in the form of precipitation after carbon dioxide mixes with rain and snow. Erosion is another way that carbon is returned to the sea. When shellfish die, the carbon that was in their shells collects at the bottom of the ocean and eventually forms sedimentary rocks.

Give one example of a human activity�that could disrupt the�carbon�cycle�as well as the consequences of this disruption.

~ Burning fossil fuels can disrupt the carbon cycle, since they increase carbon dioxide in the air, which can lead to environmental problems such as acid rain.

Photosynthesis is the process by which plants produce their food in the presence of sunlight that is solar energy with the use of carbon dioxide and water. The breakdown is the mechanism  by which plants give their carbon dioxide back.

The end products of photosynthesis are glucose and oxygen that is given back to the atmosphere.

In plants, photosynthesis is the process by which plants prepare their food in the presence of sunlight and glucose is made thus this is the way by which plants are preparing their food and in the case of plants glucose is stored in the form of starch.

With the reactions going on when the cellular respiration reactions are going on at that time the reactions produce enough of carbon dioxide which is given back to the atmosphere thus this dependency helps to interpret the mutual relationship.

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True. Phenotypic ratios in offspring are sometimes unexpected, indicating that not all genetic inheritance follows Mendel's principles. Mendel's principles were based on simple genetic inheritance, which assumed that traits were controlled by single genes with two distinct alleles that followed specific patterns of dominance and recessiveness.

Mendel's principles were based on experiments on a small number of traits, including seed color, seed shape, and flower color, in which he was able to observe the phenotypic ratios of the offspring produced by hybrid crosses.However, in many cases, the inheritance of traits is much more complicated than the simple model proposed by Mendel.

The phenotypic ratios of offspring produced by hybrid crosses can be much more variable than predicted by Mendelian inheritance, and can often be affected by random chance.The complexity of genetic inheritance has been the subject of ongoing research in the field of genetics, which has led to the development of new models and theories of inheritance that can better explain the phenotypic diversity observed in nature.

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The inner and outer surfaces of the placenta consist of the following: Chorion and uterine tissue. The correct answer is (D).

An embryonic membrane called the chorion surrounds the growing fetus and aids in the placenta's development. It is the placenta's outermost layer and directly contacts the uterine lining.

The term "uterine tissue" describes the endometrium, which lines the uterus. The interaction of the chorionic villi (extensions of the chorion) with the maternal uterine tissue results in the formation of the basal plate, the inside surface of the placenta. The uterine tissue's maternal blood arteries feed the placenta with a plentiful blood flow, allowing the mother and fetus to exchange nutrients, gases, and waste products.

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Answer: Cell theory explains cell behavior where a law would describe it

Explanation:  Theories are used to explain phenomena, while laws just describe what will always happen. Such as the law of thermodynamics that describes what is going on inside a room when heat leaves it.

Thus, G1 S G2 M is the correct order of the cell cycle phases. The telomere sequence in humans is TTAGGG. This sequence can have up to 15,000 base pairs and is typically repeated about 3,000 times.

Any macromolecule's synthesis goes through three stages: initiation, elongation, and termination. The same is true with DNA replication. DNA synthesis starts at a specific location known as a source of replication during initiation.

A separate enzyme called DNA ligase combines the Okazaki fragments to create a single, cohesive strand. The ends of the a linear DNA present a problem because DNA polymerase only could add nucleotides in the 5′ to 3′ orientation. At the end of parent strands are repeated DNA sequences known as telomeres.

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The activator's ability to activate a target promoter is unaffected by the replacement of the DNA binding domain, which just changes the site at which it will function.

The DNA regulatory sites close to the promoter regions, which function as on/off switches, are where activator proteins interact. This binding promotes the activity of the RNA polymerase and the transcription of adjacent genes.

Gene expression in a eukaryotic cell must be activated by transcriptional activators. RNA polymerase II can be drawn to the promoter or extended with the help of activators attached to the enhancer.

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High-density lipoprotein (HDL) is a type of lipoprotein that is synthesized in the liver and small intestine. HDL is often referred to as the "good cholesterol" because it has a higher proportion of protein to lipid than other types of lipoproteins.

HDL particles are known to transport cholesterol from peripheral tissues to the liver for excretion, which is why it is considered to be beneficial for heart health.The high protein content of HDL is what makes it effective in removing excess cholesterol from the body. HDL particles are also able to remove other types of lipids and inflammatory molecules from the bloodstream, which can further reduce the risk of developing heart disease.

It is important to maintain healthy levels of HDL in the body, as low levels of HDL have been associated with an increased risk of heart disease. Eating a healthy diet, getting regular exercise, and not smoking can all help to increase HDL levels. Additionally, some medications such as statins can help to increase HDL levels in certain individuals.

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Answer:

The properties of this connective tissue are mutable for a short period of time, under neural control, which provides certain mechanical advantages, which include the ability to maintain various postures without muscular effort; that is, it allows Echinoderms to change the consistency of the body, this is useful to escape predators or crawl along the seabed.

Explanation:

Echinoderms comprise the marine organisms known as starfish, sea urchins, sea cucumbers and sea lilies. These present, for the most part, benthic habits and are distributed from intertidal environments to deep bottoms and at different latitudes. They have a mutable collagenous tissue that allows them to change the consistency of the body, that is, they can rapidly change their stiffness and is involved in processes such as fission and autotomy. Some echinoderms quickly switch back and forth between being soft and stiff, which helps crawl along the seabed. Others twist only once from stiff to soft, letting a starfish cut off one of their arms to escape a predator, that is, they can drop an arm when attacked by a predator. When this happens it is called autotomy or autoamputation and the nervous system tells the mutable collagen tissue near the base of the arm to disintegrate. The wound heals and then the arm grows back, a process that can take weeks to months, depending on the species.

Answer:

saves energy

Explanation:

Mutable collagenous tissue is used to lock an Echinoderm into position.

The possible number of vertices in the rooted tree with the given rules is either 3 or 4. This can be obtained by constructing phylogenetic tree.

Let's consider the case where the tree has 3 vertices. Since every parent has exactly two children, there can only be one parent vertex.

Therefore, there are two terminal vertices that have the same number of ancestors. Since the tree has at least 2 edges, there must be one edge connecting the two terminal vertices to the parent vertex.

This satisfies both rules and we have a valid tree.

Now, let's consider the case where the tree has 4 vertices. Again, there can only be one parent vertex. This time, there are three terminal vertices that have the same number of ancestors.

In order to satisfy the second rule, there must be two edges connecting the three terminal vertices to the parent vertex. This creates a tree that satisfies both rules.

We cannot have a tree with only two vertices, as there must be at least one parent vertex and two terminal vertices, which violates the first rule.

Therefore, the possible number of vertices in the rooted tree with the given rules is either 3 or 4.

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Answer:

Translation proceeds in three phases: Initiation: The ribosome assembles around the target mRNA. The first tRNA is attached at the start codon.

Explanation:

Answer:

yes it doess

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Answer:

It completes it's life cycle at the adult stage, where it releases glochida which attaches to the gills of fish

Explanation:

Mussels start out as glochida, metamorphosizing into juveniles, to grow into adult mussels. Males release sperm, taken in by females for thier eggs, and the eggs become glochida.

In the Bohr atomic model, protons (+ charge) and neutrons (0 charge) compose the nucleus. Electrons (- charge) are circulating in orbits around the nucleus. C) Either particle X or particle Y has a positive charge. Particle Z has a negative charge.

The atom Bohr model is a representation of atoms composition of and the interaction between these elements.

The model proposes a nucleus composed of neutrons and protons, and orbits around the nucleus with electrons on them.

There are different orbits around the nucleus, each with a certain energy. Each of these orbits is then the energy level. Electrons can gain or lose energy and jump from one level to another.

The model states that

In the exposed model,

Now, let us analyze the options,

NO. X and Y do not have a positive charge, only one of them has.

NO. X and Y are positive and neutral, while Z is negative.

YES. Either X or Y are representing protons and neutrons, with positive and neutral charges, respectively. Z represents electrons with a negative charge.

NO. X and Y can have a positive or neutral charge. Z only negative charge.

According to this model description, the correct option is C).

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Answer:

The scale of mantle heterogeneities has been debated ever since the first observations of isotopic variations along mid-oceanic ridges1,2. Subsequent studies on lead and strontium isotopic variations along the Mid-Atlantic Ridge3–5 have shown that these isotopic compositions may vary with a major wavelength of ∼100–1,000 km. The immediate question is that of the scale (if any?) at which one may consider a piece of suboceanic mantle under a ridge to be homogeneous. We have studied two segments of oceanic ridges at the scale of a few kilometres. One of these portions of oceanic ridge, the CYAMEX zone in East Pacific Rise is typical, with a strongly ‘depleted’ chemistry. The other one, with an ‘intermediate’ chemistry, is the FAMOUS zone of the Mid-Atlantic Ridge. Our results show isotopic homogeneity for both zones even though small Pb variations persist on a small scale.

Humans have not been able to travel more than a few miles beneath Earth's surface because of the intense heat and pressure. For the same reasons, humans have not been able to travel into the mantle. Temperatures in the mantle range from 1600 degrees Fahrenheit at the top to 4000 degrees Fahrenheit near the bottom.

There is no single 30-second morning habit that is guaranteed to "drain fat cells.

" While there are many health and wellness practices that can support weight loss and fat burning, these typically involve a combination of diet, exercise, and lifestyle factors, rather than a single habit or quick fix.

Some examples of healthy morning habits that can support weight loss and fat burning include eating a balanced breakfast, drinking water to hydrate and support metabolism, practicing mindfulness or meditation to reduce stress and promote mental well-being, and engaging in physical activity, such as stretching or a quick workout.

However, it's important to note that sustainable weight loss and fat burning typically require a long-term commitment to healthy habits and lifestyle changes, rather than a quick fix or miracle cure.

Before starting any new health or wellness practice, it's a good idea to consult with a healthcare professional and consider your individual health needs and goals.

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Answer:

pls insert or write down the statements.

so that people will be able to answer your question.

Answer: Some changes are due to slow processes, such as erosion and weathering, and some changes are due to rapid processes, such as landslides, volcanic eruptions, earthquakes” and collisions by large meteorites with the earth.

Explanation:

The science of geology has been changed and it includes few changes were due to the slow processes, such as the erosion as well as weathering, and some changes were due to rapid processes, such as landslides, volcanic eruptions, earthquakes” and collisions by the large meteorites with the earth.

The term paleogeology has been defined as the historical geology which will be termed as the paleogeology. It has deals with the study of the principles and techniques that was used during the historic times. The discovery of large number of techniques and these are such as radioactivity and the several dating techniques helped in the knowing of previous events that has been happened in the history of the earth.

The maritime science and the environmental science both are more focused on the life and interaction of various parts of ocean, and less on the form of the rocks as it has an fact a sub-discipline of both geology and eceanography.

Therefore, The science of geology has been changed and it includes few changes were due to the slow processes, such as the erosion as well as weathering, and some changes were due to rapid processes, such as landslides, volcanic eruptions, earthquakes” and collisions by the large meteorites with the earth.

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Answer:

Explanation:

This question appears incomplete. However, one of the main differences (in organelles) between plants and animal cells is the absence of cell wall and chloroplast in animal cells while both organelles are present in plant cells. The cell wall is outside of the cell membrane. The cell wall provides rigidity and support to the plant cell while the chloroplast is the cellular "machinery" for photosynthesis. The chloroplast contains the green pigment called chlorophyll which provides green plants with there colour and assist the plants in absorbing/capturing of sunlight/energy for the purpose of photosynthesis (self production of food by green plants).

The cytoplasmic fragments of the megakaryocytes constitute the platelets, this fragments simultaneously into thousands of new platelet cells, these morphological changes are known as proplatelets.

They are cytoplasmic protrusions from which platelets or fragments are going to be detached that end up maturing in the circulation.

Therefore, we can conclude that the megakaryocytes form the future platelets, these platelets are grouped in cytoplasmic portions, called proplatelets.

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