hayen w, goebeler m, kumar s, riessen r, nehls v. hyaluronan stimulates tumor cell migration by modulating the fibrin fiber architecture. j cell sci 1999;112(13):2241e5

Answer:

White blood cells

Explanation:

Most pneumonia occurs when a breakdown in your body's natural defenses allows germs to invade and multiply within your lungs. To destroy the attacking organisms, white blood cells rapidly accumulate. Along with bacteria and fungi, they fill the air sacs within your lungs (alveoli).

Answer:

B. bacterium

Explanation:

Answer:

The correct answer is fungus.

Explanation:

When the native proteins are separating and we shine the UV light on the gel, the bands are faint. The reason is that native proteins maintain their three-dimensional shape, which enables them to fold back on themselves and protects their hydrophobic core from interaction with the negatively charged SDS molecule.

The SDS-PAGE buffer has a denaturing agent, which causes the protein to denature, lose its three-dimensional shape, and have a uniform negative charge distribution.The migration of proteins that are exposed to a denaturing agent, such as sodium dodecyl sulfate, is based on the length of their polypeptide chains. The bands are darker when proteins are denatured because the denaturation process eliminates their tertiary structure and results in a uniform negative charge distribution, making the SDS-protein complex size-dependent. As a result, the negatively charged SDS binds to the protein, giving it a negative charge, which causes it to migrate through the gel at a rate proportional to its length and charge-density.

Hence, we can conclude that native proteins maintain their three-dimensional shape, and the SDS-PAGE buffer has a denaturing agent that causes the protein to denature, lose its three-dimensional shape, and have a uniform negative charge distribution, which is the main reason for the difference in what we see in the denatured protein lane compared to the native protein lane when we shine the UV light on the gel.

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The action potential is propagated to the postsynaptic neuron whenever neurotransmitter receptors open ion channels.

The action potential is a critical process in neural communication, and it occurs when the postsynaptic neuron is depolarized by the opening of ion channels. These ion channels are opened by neurotransmitter receptors, which are activated when neurotransmitters are released from the presynaptic neuron.

When an action potential reaches the axon terminal of the presynaptic neuron, it triggers the release of neurotransmitters into the synaptic cleft. These neurotransmitters then bind to specific receptors on the postsynaptic neuron's membrane, causing the ion channels to open. The opening of these channels allows the movement of charged particles, such as sodium and potassium ions, across the neuron's membrane.

This movement of ions causes a change in the membrane potential, leading to depolarization of the postsynaptic neuron. When the membrane potential reaches a specific threshold, it triggers the generation of a new action potential in the postsynaptic neuron. This action potential then propagates down the neuron's axon to continue the process of neural communication.

In summary, the propagation of an action potential to the postsynaptic neuron occurs when neurotransmitter receptors open ion channels and cause the neuron's membrane to depolarize. This depolarization leads to the generation of a new action potential in the postsynaptic neuron, allowing for the continuous transmission of neural signals throughout the nervous system.

The question was incomplete, Find the full content below:

The action potential is propagated to the postsynaptic neuron whenever ________

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Answer:

im not really sure but i think its ovarian cancer if thats in one of your options.. maybe skin cancer if its not in ur options.

Explanation:

Answer:

b.

Explanation:

does not effect extractions

The human body is a complex organism and understanding its structure and functions requires a thorough knowledge of directional terminology, body planes, and body movements. In this image, we can see a person performing a side plank exercise which is an effective core-strengthening exercise.

We can also use directional terminology to describe the person's movements. The person is performing a lateral flexion to the side while maintaining an isometric contraction of the core muscles. The movement involves the transverse axis of the body, which runs from front to back, perpendicular to the frontal plane.

In conclusion, this picture shows a person performing a side plank exercise, positioned on the frontal plane and performing a lateral flexion movement. The person is using their core muscles to maintain the position while one arm is supporting their weight and the other arm is extended towards the ceiling.

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Answer:

a

Explanation:

ok ok as you were saying you said it is hard for the glucose concentration in the body this also had to go out so but the plasma membranes and other surfaces layers cell layers of the layer of the soil do not allow to close glucose to pass through which is most likely type of transport type of transport for kids and you still said why it is because it gives energy to the body

Water pollution is still a concern, even though its cycled through the Earth's system continuously, for many reasons. Firstly, people still continue to dump toxic chemicals, and plastic/ garbage into the water. Plastic doesn't decompose, it continues to sit and pollute the ocean unless it is cleaned up. Then there are also the chemicals. Some of these chemicals don't dissipate, or clear out for many years. There is also oil that has been spilt into the ocean. Even though it was many years ago, it still lingers in the ocean, and is very difficult to clean up. Secondly, there are bacteria and algae that lives in the water, which makes it very harmful for us if not cleaned out. The Earth's system is unable to keep these organisms out of the water. Thirdly, there is constantly water, even though water goes through the cycle, there is still unfiltered polluted water that stays, and then pollutes the filtered water. 

felt like this needed a better answer, so here you are. I got 100% on edgenuity 2020 with this.

Answer:

Anomalous expansion

Explanation:

Anomalous expansion of water is the abnormal way water expands when exposed to low temperature.

At 4 degree Celsius , the density at the top layer is usually at the Maximum which makes the water sinks down and then the water in the lower layer rises up.

When the temperature drops below 4 degree Celsius, the water molecules at the top then freezes leaving the denser molecules at the bottom which doesn’t freeze as a result of their high density.

This way, organisms can survive in the water due to the lower layer not freezing.

Answer:

decomposers (b)

Explanation:

Decomposer is missing from the given food web. Therefore, option B is correct.

A "food web" is a collection of connected food networks. Each organism in a food chain is consumed by the next in a specific order. The producers, consumers, and decomposers that make up the many food chains are thought of as parts of the food web.

By incorporating the transfer of matter and energy between organisms that consume and are eaten by others, a food web integrates key information about species relationships, material flow, community structure, and ecosystem functioning. In the depicted food web, phytoplankton is a producer and every other animal is a consumer. This food web does not contain any decomposers.

Thus, the decomposer is absent from the given food web. Therefore, option B is correct.

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Your question is incomplete, most probably the full question is this:

Which of the following is missing from the food web shown above?

A. Producer

B. Decomposer

C. Omnivore

D. Predator

The image is attached below:

The viral capsid, composed of proteins, is primarily responsible for determining the shape of a virion.

A virion is the complete infectious particle of a virus, consisting of nucleic acid (DNA or RNA) surrounded by a protective protein coat called the capsid. The capsid plays a crucial role in determining the shape of the virion. It is composed of repeating subunits called capsomeres, which assemble to form a geometric arrangement. The arrangement of capsomeres determines the overall shape of the capsid, and therefore the shape of the virion.

The capsid can have various shapes, including icosahedral, helical, complex, or enveloped. In icosahedral capsids, the capsomeres are arranged in a symmetrical 20-sided structure, giving the virion a spherical shape. Helical capsids consist of a ribbon-like structure formed by capsomeres wrapping around the viral nucleic acid, resulting in a cylindrical or rod-like shape. Complex capsids have irregular shapes and may include additional structures, such as tail fibers or spikes. Enveloped viruses have a lipid membrane surrounding the capsid, which can give them a pleomorphic or spherical shape.

In summary, the protein capsid is primarily responsible for the shape of a virion. The arrangement of capsomeres within the capsid determines whether the virion has an icosahedral, helical, complex, or enveloped shape.

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If seaweed covers most of Seafoam Reef, the reef's biodiversity will probably decrease.

To solve this problem, the people of Seafoam Island should consider changing how boat anchors are used on Seafoam Reef.

There are a variety of factors that can lead to a decrease in biodiversity, including; habitat destruction, climate change, overexploitation, pollution, invasive species, disease, human activities.

The decrease in the biodiversity will decrease the reef's resilience, or ability to handle damage. This change will probably not increase the ecosystem services that Seafoam Island receives from the reef because more tourists will not necessarily pay to visit if the biodiversity and resilience of the reef are diminished.

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The first daughter cell can receive either the maternal chromosomes or the paternal chromosomes, and the second daughter cell can receive the other set.

During metaphase, I of meiosis, the homologous pairs of chromosomes line up on the metaphase plate. Depending on which homolog is closer to the pole, there are four arrangements of the homologous pairs.

During anaphase I, the homologous pairs separate and go their own way to the opposite poles. As a result, each daughter cell receives a combination of either the maternal chromosomes or the paternal chromosomes.

This arrangement is called the independent assortment and it results in genetic variation among the daughter cells. If a single homolog is passed to each daughter cell, the genetic variation would be reduced. Therefore, the independent assortment is important in creating genetic variation in the daughter cells.

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Answer:

Cytosine & Guanine

Explanation:

Living organisms contain in their cell a biomolecule responsible for the storage and transmission of genetic information called NUCLEIC ACID. DNA is one of the two nucleic acids found in living cells. However, the DNA molecule is a polymer made up of monomeric units called NUCLEOTIDES.

Nucleotides of a DNA are made up of three components namely: 5-carbon sugar (deoxyribose), phosphate group, and a nitrogenous base (Adenine, Guanine, Cytosine and Thymine). Hence, based on the question, Cytosine & Guanine are the components (nitrogenous base) found in the DNA of all living organism.

chiasmata) is the point of contact, the physical link, between two (non-sister) chromatids belonging to homologous chromosomes. ... The chiasmata become visible during the diplotene stage of prophase I of meiosis, but the actual "crossing-overs" of genetic material are thought to occur during the previous pachytene stage.

Answer:

4) theory

Explanation:

Science is a branch of study that deals with answering questions and solving problems. However, there are different scientific principles used to tackle the problems in science. One of them is a THEORY, which is a detailed and well explained fact about a natural phenomena. A theory is said to be an hypothesis that has been subjected to series of experimental testing and found to be accurate or consistent.

In this question, a series of experiments was designed and conducted by several science teachers around the world. The results were found to be consistent that students who stayed up all night playing before their finals did -40% worse than students who didn't. This comprehensive and well explained observation using repeated experiments depicts a THEORY.

Answer:

b

Explanation:

Ecosystem-based management is an approach that takes into consideration the entire ecosystem and its interconnected components when making decisions about natural resource use. It can help advance sustainable natural resources use in Guyana by promoting a holistic and integrated approach to conservation and management.

To develop a plan for the conservation of natural resources in Guyana using ecosystem-based management, the following steps can be taken:

1. Identify and understand the ecosystems: Conduct comprehensive assessments to identify and understand the various ecosystems present in Guyana, such as forests, wetlands, rivers, and coastal areas. This will provide insights into the biodiversity, ecological processes, and services these ecosystems offer.

2. Assess the state of the resources: Evaluate the current status and trends of natural resources in Guyana, including flora, fauna, water bodies, and minerals. This assessment will help identify vulnerable or endangered species, areas of high biodiversity, and potential threats.

3. Establish conservation goals and objectives: Define specific conservation goals and objectives based on the assessments conducted. These goals should consider the need to protect biodiversity, maintain ecosystem services, and support sustainable livelihoods for local communities.

4. Engage stakeholders: Involve relevant stakeholders, including government agencies, local communities, indigenous groups, NGOs, and scientific experts. Encourage their active participation in decision-making processes to ensure diverse perspectives are considered.

5. Develop management strategies: Based on the conservation goals and stakeholder input, develop management strategies that integrate the principles of ecosystem-based management. These strategies should focus on protecting key habitats, managing land and water resources sustainably, and minimizing impacts from activities such as mining, logging, and agriculture.

6. Implement and monitor: Put the management strategies into action, ensuring proper enforcement of regulations and policies. Regularly monitor and evaluate the effectiveness of the implemented strategies to identify any necessary adjustments or improvements.

7. Promote education and awareness: Raise awareness among the public and stakeholders about the importance of ecosystem-based management and sustainable natural resource use. Promote education and capacity-building initiatives to empower local communities to actively participate in conservation efforts.

By adopting ecosystem-based management, Guyana can enhance the sustainable use of its natural resources while safeguarding its unique ecosystems and supporting the well-being of its people.

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Answer: Biomagnification refers to the process by which the concentration of a contaminant increases as you move to higher trophic levels in a food chain or food web. In other words, as organisms consume other organisms, the contaminants present in the prey accumulate and become more concentrated in the bodies of the predators.

To understand this process, let's consider an example involving a water ecosystem. Suppose a pollutant is released into the water, such as a pesticide or heavy metal. The primary producers, such as algae or aquatic plants, absorb small amounts of the contaminant from the water. As herbivorous organisms consume these primary producers, they ingest the contaminants along with their food.

Since the contaminant is not easily broken down or eliminated from the organisms' bodies, it accumulates over time. As a result, the concentration of the contaminant becomes higher in the herbivores than in the primary producers. Now, when carnivorous organisms consume the herbivores, they not only accumulate the contaminant from their own food but also from all the prey they have consumed. This leads to an even higher concentration of the contaminant in the carnivores.

Therefore, biomagnification describes the phenomenon where the concentration of a contaminant increases significantly as you move up the food chain or trophic levels. The highest concentration of contaminants is often found in top predators, such as large fish, birds of prey, or mammals, which can have adverse effects on their health and reproductive capabilities.

It's important to note that biomagnification primarily occurs for persistent and non-biodegradable contaminants that cannot be easily metabolized or excreted by organisms. These contaminants are often lipophilic (fat-soluble), which allows them to accumulate in fatty tissues and remain in the organism's body for long periods, leading to biomagnification.

Explanation:

Audrey should respond by advising Maria against using the vaginal suppositories she bought last year.

Like other medicines, vaginal suppositories have an expiration date, therefore it's important to utilize them before then. Drug efficacy and safety might deteriorate with time, and suppositories that have beyond their expiration date might not have the desired therapeutic outcome. Because of this, Audrey has to let Maria know that the best suppositories to use are those that were just prescribed for her present yeast infection. It's critical to put the patient's health and well-being first by adhering to the right prescription instructions.

Using suppositories that have expired may not have the therapeutic impact expected and may possibly result in worse-than-ideal outcomes or even negative responses. It's critical to put her health and well-being first by adhering to the recommended dosage and instructions for medications.

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Answer and Explanation:

The genotype would be a Upper case and a lower case letter (depends on what letters you are using).

If you can choose, I would do Bb.

#teamtrees #PAW (Plant And Water)

Answer:

Bb

Explanation:

Heterozygous means different alleles. Since for color, there are, in this situation, 2 alleles, B and b, let's say. B being black dominant, and b being black recessive, or white, let's say. For the rabbit to be black, it needs only one dominant allele. Since the rabbit is heterozygous, the genotype is Bb. I hope I helped, and sorry if this was confusing!

Answer:

Coal

Explanation:

Coal is classified as a nonrenewable energy source because it takes millions of years to form.

The oxidation of 1 molecule of NADH by nitrate (NO3-) would yield approximately 4.3 ATP molecules per NADH molecule due to its reduction potential at 0.54 V.

The standard reduction potential of elemental sulfur (S) is at 0.04 V and therefore in the oxidation of 1 NADH molecule, it would synthesize around 1.2 ATP molecules per NADH molecule. The oxidation of NADH by ½ O2 molecule yields approximately 2.5 ATP molecules per NADH molecule due to the reduction potential of oxygen at 0.82 V.

The amount of ATP molecules generated from each of the terminal electron acceptors in NADH oxidation show the significant influence that the reduction potentials of the different terminal electron acceptors have on the amount of ATP the bacteria can synthesize.

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The Phylum Arthropoda is a large and diverse group of invertebrates, including insects, spiders, crustaceans, and more. The correct options are c, d, and e.

The characteristics that apply to members of Phylum Arthropoda are:

c. Segmentation: Arthropods have segmented bodies with specialized appendages, which allows for a high degree of mobility and flexibility.

d. Nervous system centralized in head region: Arthropods have a centralized nervous system with a brain located in the head region, which coordinates the complex movements and behaviors of these animals.

e. Three tissue layers: Arthropods have three germ layers (ectoderm, mesoderm, and endoderm) that give rise to the various tissues and organs of the body.

Therefore, the correct options are c, d, and e.

a. Open circulatory system: This characteristic is present in some arthropods, such as insects, but not all of them. Some arthropods have a closed circulatory system.

b. Breathing through the mouth: Arthropods do not breathe through a mouth; instead, they have a variety of respiratory organs, such as gills, tracheae, or book lungs, depending on the species.

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Full Question ;

Select all of the characteristics that apply to members of Phylum Arthropoda.

a. Open circulatory system

b. Breathing through the mouth

c. Segmentation

d. Nervous system centralized in head region

e. Three tissue layers

Most water molecules that cross the plasma membrane do so by diffusion through aquaporins.

Aquaporins (AQP) are essential membrane proteins that act as conduits for the passage of water and, occasionally, tiny solutes. Animals, plants, and microorganisms all have them preserved in aquaporin. Each aquaporin molecule has a pore in its centre, according to structural investigations of the molecules.

Diffusion is the movement of molecules along a concentration gradient from a region of greater concentration to a region of lower concentration.

The definition of diffusion is the transfer of individual molecules of a material from a region of higher concentration to a region of lower concentration over a semipermeable barrier in diffusion.

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The two types of genes that, when abnormal, cause cancer are tumor suppressors and oncogenes.

The term gene meaning generation or birth or gender) can have multiple distinct meanings in biology. The Mendelian gene is a fundamental unit of heredity, while the molecular gene is a DNA sequence that is translated to create functional RNA. Protein-coding genes and noncoding genes are the two categories of molecular genes.

During gene expression, DNA is transcribed into RNA first. The RNA can be directly functional or be the intermediate template for a protein that performs a function .The inheritance of phenotypic characteristics is based on the passage of genes from one organism to its offspring. These genes combine to form various DNA sequences known as genotypes. The phenotypes are determined by genotypes, as well as environmental and developmental variables.

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Answer: La Niña causes water in the eastern Pacific to be colder than usual. In the same region, El Niño can cause the water to be warmer than usual. Areas that are hit with drought during La Niña years are pummeled with rain in El Niño years.

Explanation: The biggest impact of La Niña on North American rain, snow and temperatures tends to be felt during the winter, according to NOAA. Generally speaking, La Niña winters tend to be drier and warmer than normal across the southern U.S. and cooler and wetter in the northern U.S. and Canada!

Answer:

The correct answer is C. Finding burial sites of modern Homo sapiens in the same region as Homo neanderthalensis fossils

Explanation:

Hominids is a term used to refer to different specimens of human evolution. According to scientific research, it has been established that the best known hominid species of the "Homo" family are organized chronologically as "Homo Habibis", "Homo erectus", "Homo neanderthalensis", and, "Homo sapiens". On the other hand, if an anthropologist believes that the Homo neanderthalensis were the first to practice burials but it is found this practice is only associated to subsequent species such as the Homo sapiens it can be concluded the conclusion of the anthropologist is false. So, the correct answer is c. Finding burial sites of modern Homo sapiens in the same region as Homo neanderthalensis fossils. because the lack of burial sites from Homo Neanderthalensis along with the existence of burial sites of homo sapiens shows this practice belongs to the  modern hominid species.

Answer: C

Explanation:

trust the guy who answered before cuz he right

My answer to the question is Activation Energy.