Use the chemical equation to answer the question that follows.

C+0₂ → CO₂

What type of reaction occurs when carbon dioxide is formed from carbon and oxygen?

O synthesis

O decomposition

O single displacement
O double displacement

Answer:

Galaxies range from a few thousand to a million light-years in diameter. A galaxy is a cluster of stars, dust, and gas which is held together by gravity. Galaxies are scattered throughout the universe and they vary greatly in size. A galaxy may be alone or it may be in a large group of galaxies called a "supercluster".

Explanation:

Answer:

D. Both plant and animal cells

Explanation:

The explanation is that animal and plant cells are eukaryotic cells which means they have a nucleus which contains and protects the genetic material. Bacteria is a prokaryotic cell which means it does have genetic material but doesn't have a nucleus.

The correct anatomical sequence that presents the order in which food in the digestive system passes through is:

pharynx → esophagus → stomach → small intestine → large intestine

In this sequence, the pharynx (throat) receives the chewed food from the mouth, and then it passes through the esophagus (a muscular tube that connects the pharynx to the stomach). From the esophagus, the food enters the stomach where it is mixed with digestive juices and further broken down. The partly digested food is then absorbed into the circulatory system by the small bowel, where the majority of the fertilisers are absorbed. Finally, any undigested food or waste material moves into the large intestine (colon) where water is absorbed, and the remaining waste is eliminated as feces through the rectum and anus.

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Answer:

oxygen

Explanation:

The most abundant elements by mass in the body of a healthy human adult are Oxygen (61.4%)

toppr

Decreased rainfall will result in decreased competition among consumer species for food.

The correct option is  C.

An ecosystem is a region in which a bubble of life is created by plants, mammals, and other organisms interacting with the weather, environment, and other factors. Abiotic elements, or non - living things components, coexist with biotic components in habitats. Ecosystem functioning is the ability of natural phenomena and elements to either directly or indirectly meet human demands for commodities and services.

Human welfare and survival rely on healthy terrestrial ecosystems because they give us access to critical goods and benefits. More than 90% of our food originates from ecosystem types, which also offer us energy, resources for building and clothing, health-related products, fresh water, and pure air.

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Answer:

Yes

Explanation:

Plant DNA is found in the plant cells nucleus, mitochondria and chloroplasts!

A. The candy tablets being added to the drink.

Right after the student proceeds to open the soft drink bottle and places it on the floor, they add the candy tablets into the drink. Notice how they notice the fizzes after the candy tablets were dropped in.

Your answer should be A.

The role of single-stranded DNA-binding (SSB) proteins is to bind and stabilize single-stranded DNA (ssDNA) molecules that are generated during various cellular processes, such as DNA replication, repair, recombination, and transcription. SSB proteins prevent the ssDNA from annealing back to double-stranded DNA or from folding back onto itself, which can lead to the formation of secondary structures that can block or impede the progress of DNA polymerases, repair enzymes, or other DNA-binding proteins. By keeping the ssDNA in an extended and flexible conformation, SSB proteins also increase the accessibility and efficiency of other DNA processing enzymes that require single-stranded DNA as a substrate or binding site.

During DNA replication, SSB proteins are essential for the unwinding of the double helix by helicases, which separate the complementary strands of DNA to create a replication fork. SSB proteins bind to the ssDNA exposed by the helicase and protect it from degradation or damage by nucleases or reactive oxygen species. SSB proteins also play a role in the regulation of replication fork stability, by modulating the activity of DNA polymerases, topoisomerases, and other replication factorsIn addition to their roles in DNA replication and repair, SSB proteins are involved in many other cellular processes that require ssDNA intermediates, such as homologous recombination, DNA damage signaling, telomere maintenance, and viral replication. The functions of SSB proteins are highly conserved across all domains of life, and mutations or defects in SSB genes can lead to various genetic disorders, including cancer, neurodegeneration, and immunodeficiency.

In summary, the primary role of single-stranded DNA-binding (SSB) proteins is to bind and protect ssDNA molecules from aberrant folding or annealing, and to facilitate the access and processing of other DNA-binding proteins during various cellular processes. SSB proteins are essential for genome stability and integrity, and their functions are critical for the survival and adaptation of all living organisms.

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Answer:M

Explanation:

Saw some guy say it

Answer:

M is correct

Explanation:

Did the test.

Answer:

​The cell membrane is called selectively permeable as it only allows specific molecules to pass. Only specific molecules like water and gaseous molecules can pass through the cell membrane directly.

The term experiment has to do with the relationship between the dependent and the independent variables in a study .

When we are are carrying out an experiment, the aim is always to know the effect of one variable on another. One is the dependent variable and the other is the independent  variable

Experiment A

Independent variable - Cure for knee problem

Dependent variable - Relief from the knee problem

Control group - Those who were given  the placebo

Experiment B

Experimental variable -The reaction of the deer

Independent variable - The use or not of the tiger urine

Dependent variable -Whether or not the deer was repelled from the tree seedlings

Control group - Tree seedlings without with tiger urine

Controlled variables - Type of seedlings, specie of deer and tiger

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Answer:

True.

Explanation:

Hope this helps!

AIDS (acquired immunodeficiency syndrome) is caused by the HIV (human immunodeficiency virus).

HIV is thought to have originated in chimpanzees in West-central Africa and was transmitted to humans through contact with infected blood, such as through hunting, butchering, and preparation of chimpanzee meat. It is believed that the first cases of HIV infection in humans occurred in the 1920s, but the virus went unrecognized until the 1980s.

It is important to study viruses at the "viral chatter" stage because this is when viruses are replicating and spreading within an organism, and understanding the mechanisms behind this process can help in the development of antiviral therapies and vaccines.

People can come into contact with viruses that could jump to humans through contact with infected animals, their meat, or their bodily fluids. This can occur through handling or consuming contaminated animal products, or through close contact with infected animals in zoos or other settings.

Risky behaviors for zoonotic diseases may continue despite the knowledge that these diseases can infect humans for a variety of reasons. Some people may not be aware of the risks, while others may be unable to afford or access safer alternatives. In some cases, cultural or traditional practices may also play a role.

Global tracking of zoonotic diseases is important because these diseases can spread rapidly, crossing international borders and affecting both human and animal populations. Early detection and response to outbreaks can help to reduce the spread of these diseases and minimize the impact on public health.

There are two types of HIV: HIV-1 and HIV-2. HIV-1 is the more common and more virulent form of the virus, while HIV-2 is found primarily in West Africa and is less virulent than HIV-1. HIV-1 is thought to have originated in chimpanzees in Central and West Africa.

HIV is a virus that attacks the immune system, specifically the CD4 cells (T cells), which help the body fight off infections.

Therefore, It is important to study viruses at the "viral chatter" stage because this is when viruses are replicating and interacting with host cells. By studying these interactions, scientists can learn more about how viruses replicate, how they evade the immune system, and how they cause disease.

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Answer:

The DNA in prokaryotes is different from the DNA in eukaryotes in that DNA in eukaryotes is located in the nucleus, while prokaryotes do not have a nucleus. This is represented by option B. Eukaryotic DNA is organized into linear chromosomes and is associated with histone proteins, while prokaryotic DNA is typically circular and is not associated with histones. Additionally, eukaryotes have multiple chromosomes, while prokaryotes usually have a single chromosome.

Explanation:

The following compounds can be classified as lipids: steroids, saturated fatty acids, phospholipids, unsaturated fatty acids.

WHAT ARE LIPIDS:

Therefore, the following compounds can be classified as lipids: steroids, saturated fatty acids, phospholipids, unsaturated fatty acids

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Answer:

Object B has more charge than Object A

Explanation:

Generally, unlike charges attract each other and like charges repel each other but it happens in a very rare case when like charges attract each other. It is so due to charge difference between the objects.

In the given example a positively charged ball moves towards positively charged object B because object B has more charge than object A and the ball. Due to large difference in the charges between two positive charges, positive charges are displaced at opposite end and object B get concentrated with negative charges that allows ball to move towards Object B.

Hence, the correct answer is "Object B has more charge than Object A".

Answer: milk is present in the digestive system, which turns on the gene for lactase.

Explanation:

A study of post-mortem changes in human central nervous tissue showed that within 100 h after death, no significant change occurs in the amount of nerve cell DNA and nucleolar RNA nor in some membrane-associated enzymes such as succinate dehydrogenase, NADH and NADPH diaphorase and cytochrome oxidase.

Low molecular weight RNA species, probably transfer and messenger RNA, are rapidly lost, but there is little change in ribosomal RNA content. Cytoplasmic enzymes show variable changes; phosphofructokinase activity is rapidly decreased; hexokinase is unchanged, but lactate dehydrogenase, pyruvate kinase, and glucose-6-phosphate dehydrogenase initially show increases in activity that later decline. Oxygen absorption decreases rapidly. These findings indicate that mechanical changes in cell structure, after death, render organelles physiologically ineffective long before any significant changes in certain biochemical components are detected.

With this information, we can conclude that great importance needed in the selection of post-mortem tissues with adequate time for accurate comparative studies of many of the constituents of the cells.

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Answer:

\(\color{yellow}\sf{\pmb{ Granulocytes }}\)

Explanation:

Granulocytes are a type of white blood cell that has small granules. These granules contain proteins. The specific types of granulocytes are neutrophils, eosinophils, and basophils. Granulocytes, specifically neutrophils, help the body fight bacterial infections.

Answer: Fossil fuels

Explanation:

Answer:

fossil fuels

Explanation:

DNA strand replication begins on one end of the open part of the DNA strand which is therefore denoted as option D.

This is referred to as deoxyribonucleic acid and it is the genetic material of most living organisms as it ernsures thast traits are poassed from the parent to the offspring.

DNA replication initiates at specific points, called origins, where the DNA double helix is unwound which means it is at  one end of the open part. A short segment of RNA, called a primer, is then synthesized and acts as a starting point for new DNA synthesis.

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There are several factors that may cause a mineral deposit that had not been considered valuable to become highly sought after. Some of these factors include:

Technological advancements: Advances in technology can make it possible to extract and process minerals that were previously uneconomic. For example, if new technologies make it possible to extract a mineral from a previously unprofitable deposit, it can become highly sought after.

Market demand: Changes in market conditions can increase the demand for a particular mineral. For example, if a mineral is used in new technologies or products, the demand for it may increase, making previously uneconomic deposits viable.

Political or economic instability in a region can cause the prices of certain minerals to rise, making previously uneconomic deposits more attractive.

Exploration and discovery: New discoveries of mineral deposits can also lead to previously uneconomic deposits becoming highly sought after. Exploration companies and geologists are constantly searching for new mineral deposits, and when they find one, it can become highly sought after.

Natural occurrences: Natural occurrences such as natural disaster, geological shifts and changes in the environment can cause a previously uneconomic mineral deposit to become highly sought after.

It's important to note that these are just some examples, other factors may also play a role in the changes in the mineral market.

Answer:

in order to answer that, you have to provide more information about your question

Split-brain patients have undergone a surgery that severs the corpus callosum, the band of fibers that connects the two hemispheres of the brain. This means that information received through the right senses (ear, eye, or side of the body) is processed by the left hemisphere and vice versa. The correct answer is c)Speak about info received exclusively in their left hemisphere.

Split-brain patients are unable to speak about information received exclusively through their left hemisphere because that information cannot be transferred to the language centers in the left hemisphere for verbal expression. However, they can perform tasks that involve integrating logical and spatial information because both hemispheres are still able to process information independently. They may also have difficulty coordinating movements between major and minor muscle groups, but this is not a specific symptom of split-brain syndrome.

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The property of water which best describes how it is able to transport molecules from one place to another is cohesion.

Water is the most important substance found on the planet, and all life forms depend on it. Water is an excellent solvent, capable of dissolving a wide range of substances, and it is also an excellent transport medium. Water is a liquid at ambient temperature and pressure on Earth, making it an essential medium for many biochemical reactions. Water's ability to transport molecules from one location to another is determined by its chemical and physical characteristics, which are determined by its molecular structure.

Water's cohesive nature is one of the properties that allow it to transport molecules from one location to another. Cohesion is the tendency of water molecules to stick together due to hydrogen bonding. This feature allows water to form a thin, cohesive film on the surface of objects such as leaves and the human body, which helps it adhere to surfaces and move as a unit. When water molecules stick together due to cohesion, they can transport other molecules along with them, which is essential for many biochemical reactions and for the proper functioning of living organisms.

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Clearcutting is best described as the removal of all trees from a region so that lumber companies can gather the wood.

Soil erosion occurs when the impact of water or wind separates and removes soil particles, gradually degrading the soil. Surface runoff, soil erosion, and poor water quality have grown to be important problems all across the world.

Compaction, loss of soil structure, nutrient degradation, and soil salinity are a few of these effects. These are extremely real and occasionally serious problems. Soil erosion has negative effects in addition to the loss of farmland.

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Answer:

sorry

Explanation:

hindi ko po Alam same din nga tayo

Answer:

True

Explanation:

Evidence is either implicict, or explicit. This means it is either easily identified or a connection can be made to provide the evidence.

Answer:

there is no picture attached

Answer:

yeah. I need a picture . I was about to say that

There will be two chromatids (2 DNA molecules) by the time metaphase I occurs.

Chromatin refers to a mixture of DNA and proteins that form the chromosomes found in the cells of humans and other higher organisms. Many of the proteins — namely, histones — package the massive amount of DNA in a genome into a highly compact form that can fit in the cell nucleus.

Chromatin is a complex of DNA and protein found in eukaryotic cells. The primary function is to package long DNA molecules into more compact, denser structures.

Meiosis is a type of cell division in sexually reproducing organisms that reduces the number of chromosomes in gametes (the sex cells, or egg and sperm). In humans, body (or somatic) cells are diploid, containing two sets of chromosomes (one from each parent)

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