What do you think the structures
that develop into gills in fish might
turn into in the other animals?

A. Brain
B. Heart
C . Lungs
D. Stomach

Villi are the tiny hair-like projections that line the inside of the small intestine. They contain blood vessels and help absorb nutrients.

These are slender vascular projections that increase the surface area of the membrane.

These project into the intestinal cavity, greatly increasing the surface area for food absorption and adding digestive secretions.

Answer:

D. 1900s

Explanation:

it laid the groundwork for advancements.

Answer:

Pulsar.

Explanation:

I took the test:)

Answer:

in plants is responsible for the timing of seasonal activities such as flowering and growth.Transpiration is the loss of OXYGEN through a plant's leaves. False- water. When the guard cells of a leaf lose water, the stomata OPEN.

Explanation:

so the answer is True

Answer:

use the generation tree starting by the grandparents as first generation and the parents as second generation until the child as third generation

He needs a ticket, but so does Jennifer, sentence contains a coordinating conjunction.

The conjunction "therefore" combines two independent clauses to form a sentence. A comma is placed after the conjunctive adverb when using one, and a semicolon is inserted before it. Conjunctive adverbs include but, also, yet, consequently, hence, likewise, etc.

A coordinating conjunction connects sentences with comparable grammatical structures, such as words, phrases, or clauses. But, and, or, so, nor, yet, for, and coordinator are examples of coordinating conjunctions.

The usage of coordinating conjunctions is seen in the following sentences.

I'm going to have eggs and bacon for breakfast.

When he grows up, Isaac wants to be a doctor or an astronaut.

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Point source pollution is when pollutants enter the environment from a specific and identifiable source, while non-point source pollution comes from multiple sources and is difficult to trace back to one specific origin.

Three examples of point source pollution include industrial discharge from factories, sewage treatment plants, and oil spills. Non-point source pollution examples include agricultural runoff, urban stormwater runoff, and atmospheric deposition from air pollution.

It is important to note that while point source pollution can often be regulated and controlled by the responsible party, non-point source pollution is much more difficult to manage as it involves multiple sources and often requires collective action to address.

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Answer:

DNA structure

DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.

Explanation:

Once the chromatids are on either side, the cell enters telophase, which is the ultimate phase of cell division in which all prophase-related processes are reversed.

The separation of the chromatids is the anaphase phase of cell division. Anaphase is what phase of cell division? During anaphase, each chromatid pair divides into two identical chromosomes, which are attracted to the opposite ends of the cell by the spindle fibres. After the separation of the centromeres, the fourth stage of cell division, known as anaphase, takes place when the chromatids split into chromosomes. Mitosis is a fundamental biological process in which a cell divides into two identical daughter cells. In order to prepare for Mitosis, DNA is replicated (during phase S of the cell cycle) and then condensed into smaller units known as chromosomes (prophase). The chromosomes then travel to the centre of the cell (metaphase).

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Answer:

Lacks an well defined nucleus

Explanation:

Answer:

Answer:

Lacks an well defined nucleus

Explanation:

Explanation:

Answer:

DNA can be extracted from ethanol-fixed lymphoid cells and tissues. The fixation procedure is simple and rapid, and the DNA extraction itself is the same as that normally used for fresh tissue or cells. DNA extracted from ethanol-fixed material is indistinguishable from DNA extracted from fresh samples based on its purity, its ability to be digested with restriction endonucleases, and its ability to specifically hybridize to DNA probes. The capability to extract DNA from ethanol-fixed cells and tissues eliminates the need for stringent handling and storage requirements of fresh or frozen specimens.

Answer:

The law of conservation of energy, which is a fundamental principle in physics, states that energy cannot be created or destroyed, but it can be transformed from one form to another or transferred from one system to another.

This means that the total amount of energy in a closed system remains constant over time, and any energy lost by one part of the system must be gained by another part of the system. The law of conservation of energy applies to all physical processes, including mechanical, electrical, and chemical processes, and is a consequence of the time-invariance of physical laws.

It is a cornerstone principle in the study of thermodynamics and is crucial to our understanding of the behavior of the universe at the most fundamental level.

The law states that "Energy can neither be created nor destroyed adn can be only converted from one form to another."

Thus this means that the total amount of energy in the universe is constant and it cannot be created or destroyed it conly changes its forms.

For example, if we throw a ball from a height we convert its potential energy to kinetic energy. In this case all the potential energy is converted to its kinetic energy in a ideal system and thus no energy is destroyed or created.

Also in a motor vehicle the engine converts the chemical energy present in the fuel to mechanical energy of the car. It is a very important part of mechanics on whose bases many laws are formulated.

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Answer: D

Explanation: D is the only one that is an actual observation. The other options are inferences and don’t just state the facts.

Answer:

Autocrine =  Autocrine signaling is a form of cell signaling in which a cell secretes a hormone or chemical messenger (called the autocrine agent) that binds to autocrine receptors on that same cell, leading to changes in the cell.This can be contrasted with paracrine signaling, intracrine signaling, or classical endocrine signaling.

Juxtacrine =  Juxtacrine signalling (or contact-dependent signalling) is a type of cell–cell or cell–extracellular matrix signalling in multicellular organisms that requires close contact.

Endocrine = Endocrine signaling occurs when endocrine cells release hormones that act on distant target cells in the body. Endocrine signaling can be distinguished from two other types of signaling: neural signaling and paracrine signaling. ... Neurons are connected to their target cells via synapses.

Paracrine = Paracrine signaling is a form of cell signaling or cell-to-cell communication in which a cell produces a signal to induce changes in nearby cells, altering the behaviour of those cells.

Separate mRNAs are transcribed from different promoter sequences upstream of each gene. The correct answer is A.

Since the passage mentions that the operon contains two genes, cgr1 and cgr2, and the question specifically asks about the production of their corresponding proteins, we can deduce that they are transcribed separately. An operon is a group of genes that are transcribed together into a single mRNA molecule. However, the genes within an operon can have their own promoter sequences that control their transcription. Therefore, cgr1 and cgr2 likely have their own promoter sequences that direct the transcription of separate mRNAs, which are then translated into their respective proteins.

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Answer:

False.

Explanation:

Hope this helps!

False.Fungal spores can be produced through both asexual and sexual reproduction processes, each serving different purposes in fungal life cycles

Fungal spores can be produced through both sexual and asexual reproduction.

Asexual reproduction in fungi involves the formation of spores through mitosis, where the parent organism produces genetically identical spores without the involvement of another individual. These spores are called asexual spores or mitospores. Examples of asexual spores include conidia in Aspergillus and sporangiospores in Rhizopus.

On the other hand, sexual reproduction in fungi involves the fusion of specialized cells or structures from two different mating types, resulting in the formation of spores with genetic variation. These spores are called sexual spores or meiospores. Examples of sexual spores include zygospores in Rhizopus and ascospores in Saccharomyces.

So, fungal spores can be produced through both asexual and sexual reproduction processes, each serving different purposes in fungal life cycles. Asexual spores contribute to rapid dispersal and colonization, while sexual spores promote genetic diversity and adaptation.

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Answer:

An actual computer virus is a malicious software, often known as malware, that can harm a computer and its users.

Virus hoaxes are false or misleading information about viruses that circulate through various communication channels.

They can be more dangerous than actual viruses due to their ability to spread quickly, cause panic, and undermine effective public health measures.

Virus hoaxes are deceptive messages or claims that often exaggerate the severity or impact of a particular virus. They can be spread through social media, email chains, or word of mouth. These hoaxes may include misinformation about symptoms, transmission methods, or false remedies, leading people to take ineffective or even harmful actions.

What makes virus hoaxes particularly dangerous is their potential to create panic and misinformation at a rapid pace. The viral nature of social media and other communication platforms allows these hoaxes to reach a wide audience within a short period. As a result, people may make decisions based on false information, such as avoiding necessary medical treatment, taking unnecessary precautions, or spreading fear and misinformation to others.

Moreover, virus hoaxes can undermine public health efforts by diverting attention and resources from legitimate preventive measures. They can erode trust in healthcare authorities and disrupt the dissemination of accurate information, making it harder for individuals to make informed decisions and follow recommended guidelines.

This can have severe consequences, especially during outbreaks or pandemics, where timely and accurate information is crucial for public safety. Therefore, it is essential to verify the credibility of information and rely on trusted sources to mitigate the risks associated with virus hoaxes.

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Answer:

Is this a scam to download this so you can be able to access my computer

Explanation:

Substances in food that neutralize the effects of free radicals are known as antioxidants (option B).

Antioxidants are substances that acts to slow or prevent the oxidation of another chemical.

Free radicals are an example of those chemicals and they are one or more unpaired electrons that are generally highly reactive.

In food substances, antioxidants help to neutralise the effect of those free radicals in the body. Examples of antioxidants are the group of vitamins that act against the effects of free radicals.

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Answer:

d

Explanation:

The drawback or disadvantage associated with the use of light microscopes over electron microscope is its lower magnification power.

LIGHT MICROSCOPE:

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Answer:

The answer is Crocodile

Hope this helps you

Answer:

Crocodiles

Explanation:

Birds are most closely related to crocodiles.

Crocodiles and birds are part of the same larger group, called archosaurs.

answer:

if i were you i would copy the entire question into the search bar on brainly or on your regular seach engine

explanation:

it'll come up when you seach it on google or brainly

also quick tip instead of putting it as as image paste the question and the options and ask your question that way its clearer and other people can look up your question easily if they have the same one!

It pumps blood allowing the distribution of nutrients to all parts of the body

HEART

noun

The heart is the organ in circulatory system that pumps blood throughout the body by the help of the atriums and ventricles that supply oxygen, nutrients to the body and take out deoxygenated blood away to the lungs.

The right atrium is the upper chamber of the heart that receives deoxygenated blood from the vena cava and pumps it into the right ventricle which sends the blood out to the lungs so that it become oxygenated.

Left ventricle the thickest of all the heart's chambers is responsible for the pumping of oxygenated blood to tissues all throughout the body.

Answer:

Satellites

Localised instruments.

Explanation:

Satellites are technological device that is use to provide information from.some region of the Earth's biosphere like oceans , clods, lands e.t.c.It uses radar or optical sensor to capture images on the Earth. Satellite orbits round bigger objects.

Localised instruments are technological devices that is also use to provide information about the Earth's biosphere.

The patterns that are most easily observed is the differentiation of the cells during development.

At the early stage of embryonic development, a few key patterns in appearance can be observed. These include the formation of the neural plate, which will eventually give rise to the brain and spinal cord, as well as the formation of the primitive streak, which marks the beginning of gastrulation and the formation of the three primary germ layers (ectoderm, mesoderm, and endoderm).

Additionally, the embryonic heart begins to beat and blood cells start to form, and the formation of the limb buds, which will give rise to the arms and legs, can also be observed.

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Answer:

Explanation:

Waxing means the moon is getting brighter. It it moving from a New Moon, no light, towards a Full Moon. Also if you see the light of the moon on the right. It will be getting brighter each night until it reaches a Full Moon Then it will start Waning or decreasing in light each night. So the answer is the last one.

Moving closer to a vegetarian diet could have a significant impact on greenhouse gas reduction.

According to research, the livestock sector contributes to approximately 14.5% of global greenhouse gas emissions. The production of beef, in particular, is a significant contributor to greenhouse gas emissions, including carbon dioxide, methane, and nitrous oxide. By reducing or eliminating beef consumption, an individual can significantly reduce their carbon footprint.

Assuming the average American consumes 30 kg of beef in a year, this would equate to approximately 8.1 kg of protein. If this protein were replaced with dry beans, which contain 235.8 g of protein per kg, it would require approximately 34 kg of dry beans. However, this would only contribute to a small reduction in greenhouse gas emissions, as the production of dry beans still produces some emissions.

Thus, while moving closer to a vegetarian diet may not completely eliminate an individual's carbon footprint, it can still have a significant impact on reducing greenhouse gas emissions. This can be achieved by reducing meat consumption and incorporating more plant-based foods into one's diet.

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The male sperm never fertilizes the female egg despite the parrots' repeated mating. Gametes mate, yet they are unable to combine. This is an illustration of a prezygotic reproductive barrier known as gametic isolation.

The process through which one species divides into two or more species is known as adaptive radiation. Different populations become reproductively isolated from one another as a result of adjusting to various circumstances, which typically happens.

By means of speciation, which occurs when an ancestor population divides into two or more genetically separate descendant populations, new species are created. Within the original population, speciation entails the reproductive isolation of groups and the development of genetic variations between the two groups.

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Either the cells have a mutation that prevents the initiation of apoptosis signaling, the cells have lost expression of the receptor for the apoptosis-inducing ligand, or the cells overexpress a boom aspect pathway that inhibits apoptosis.

Most cancers cell is a peer-reviewed scientific journal and scientific magazine that publishes articles that provide the main advances in most cancers research and oncology. The magazine considers manuscripts that solve vital questions applicable to naturally occurring cancers.

Cancer is a sickness caused when cells divide uncontrollably and unfold into surrounding tissues. most cancers is resulting from modifications to DNA. The maximum most cancers-inflicting DNA changes occur in sections of DNA known as genes. those modifications also are known as genetic modifications

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