Can a fossil be created in a few weeks? How long do you think it
takes a dinosaur fossil to form?

Answer:

they have cell walls as an outer boundry

Explanation:

the cells of all living things do not have cell wall. animal cells do not have cell wall. protozoans also do not have cell wall. while cells of plants algae fungi and bacteria have cell wall.

For example, the respiratory system and the circulatory system work closely together to deliver oxygen to cells and to get rid of the carbon dioxide the cells produce. The circulatory system picks up oxygen in the lungs and drops it off in the tissues, then performs the reverse service for carbon dioxide.

Answer: the anwser is c bc it makes the most since

Explanation:

Explanation:

Water mostly enters a tree through the roots by osmosis and any dissolved mineral nutrients will travel with it upward through the inner bark's xylem (using capillary action) and into the leaves.

Answer:

age gender, marital status, race, disability and sexual transmitted infections

A complete collection of single-use and high-throughput electrocompetent and chemically competent E. coli

Choosing the ideal competent cells for your cloning applications and workflows is a critical component of success. Aspects to consider when selecting your competent E. coli strain include:

Transfection method – chemical versus electroporation

Transformation efficiency – bacterial strain and genotype

Downstream application – protein expression, library production, general cloning

Answer:

Humans

Explanation:

short answer is humans, because humans contribute to environmental destruction more than anything. Humans litter, release toxins into the air from factories and transportation, release toxins into our oceans with oil leaks from boats, drill into the earth (frack) to obtain oil for cars, hunt animals and eventually make certain groups extinct.

Humans are causing global warming because of the toxins we release into the air.

The correct option is D, as epidemiological studies showing that individuals with the CFTR mutation have a higher risk of developing respiratory infections and other complications provide support for the idea that the mutated form of the CFTR protein is harmful to humans.

F508del is the most prevalent CFTR mutation, seen in around 70% of patients with CF. The deletion of three base pairs in the CFTR gene results in the lack of an amino acid termed phenylalanine, abbreviated F, in the CFTR protein.

Recessive diseases include cystic fibrosis.

A mutated variant of the CFTR protein is dangerous. Individuals who inherit the mutant variant of the gene are more likely to experience major health issues.

Option D is accurate because it implies that epidemiological research supporting the hypothesis that the mutant version of the CFTR protein is detrimental to humans would demonstrate that people with the CFTR mutation have a higher chance of having respiratory infections and other issues. This is consistent with the widely held belief that the CFTR mutation has detrimental effects on health and causes problems with cystic fibrosis.

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The complete question is: Which of the following types of evidence would provide support for the idea that the mutated form of the CFTR protein is harmful to humans?

A. Studies showing that individuals with the CFTR mutation have a lower risk of developing respiratory infections and other complications.

B. In vitro studies showing that the mutated CFTR protein functions normally in the cell membrane, leading to normal ion transport.

C. Animal studies demonstrating that mice or other model organisms with the CFTR mutation have no symptoms or pathologies related to cystic fibrosis.

D. Epidemiological studies showing that individuals with the CFTR mutation have a higher risk of developing respiratory infections and other complications.

The circulatory system, also known as the cardiovascular system.

The heart is a muscular organ located in the chest. It acts as a pump, continuously contracting and relaxing to circulate blood throughout the body. The heart has four chambers: two atria (left and right) and two ventricles (left and right).

Veins  transport deoxygenated blood back to the heart from the body tissues. Arteries carry oxygenated blood away from the heart to various organs and tissues. Capillaries  the exchange of oxygen, nutrients, and waste products between the blood and surrounding tissues.

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Glucose and oxygen are the product of photosynthesis which is used in cellular respiration.

The process of cellular respiration that occurs in the presence of oxygen gas in order to create energy from food is known as aerobic respiration. The majority of plants, animals, birds, humans, and other mammals all engage in this sort of respiration regularly. As byproducts of this process, water and carbon dioxide are created.

Aerobic respiration and photosynthesis are actually reversed processes. In the process of fixing carbon dioxide into sugar, photosynthesis also generates oxygen. By converting sugar into carbon dioxide during aerobic respiration, oxygen is used up.

While glucose and oxygen are produced from carbon dioxide and water during photosynthesis, carbon dioxide, and water are produced from glucose and oxygen during aerobic respiration.

Therefore, the correct answer is glucose and oxygen.

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Eating a more sustainable diet involves consuming food that is produced in a way that has minimal impact on the environment, such as plant-based foods, locally grown produce, and sustainably raised animal products.

Examples of sustainable foods that people can eat include fruits, vegetables, whole grains, legumes, nuts, and sustainably raised animal products such as grass-fed beef, free-range chicken, and wild-caught fish. Locally grown produce can also be more sustainable as it reduces the environmental impact of transportation.

Eating lower on the food chain can benefit both the environment and human health. . Additionally, reducing the consumption of animal products can decrease greenhouse gas emissions and other environmental impacts associated with industrial-scale agriculture.

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Heliocentric model  represents the copernican model that is most similar to that of Aristarchus

Aristarchus of samos was an ancient greek astronomer who proposed that the Earth revolves round the Sun, suggesting a heliocentric model of the solar system. However, his model did not gain widespread acceptance during his time and the geocentric model prevailed for many centuries.

The heliocentric model later reintroduced and developed by NIcolaus Copernicus in the 16th century. Heliocentric model placed the sun at the center of the solar system, with the planets, including Earth, orbiting around it.

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The ability to self heal, temperature regulation, and enhanced night vision would would it spread quickly because these characteristic may increase the fitness of a species in a short period of time.

Adaptation and evolution are closely related because adaptation is a process of genetic change within a species over time in order to better suit its environment. This genetic change is then passed on to the next generation and over time can accumulate to form new species.

Therefore, with this data, we can see that adaptations that enhance the fitness of a species would tend to spread quickly in evolution.

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longer chain that shows more carbon is used so its not a alcohol only up to methanlo or up to 3 carbon is considered as alcohol

A scientific argument is a method that researchers use to direct their work. In order to ultimately improve rational explanations and experimental designs, scientists point out flaws and limitations in other people's arguments. Evidence-based arguments is the term for this technique.

The aim of scientific reasoning is to assess the reliability and validity of methods and results. It would be appropriate to accept the scientific research if one could validate and demonstrate all of the points made. This part is structured around the four components of scientific argumentation

The method by which research, as a field, creates and greater integration, is through scientific debate. Other scientists assess and analyze the assertions, supporting evidence, and explanations of that evidence when scientists make arguments in favor of novel theories.

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Answer:

Body fossils

Explanation:

Normally, only the hard skeleton is preserved (shell or bone), and the soft tissue (skin, muscle, organs, etc.) rots away after death. Animals with weak skeletons (e.g., a shrimp or an insect) are less likely to be preserved and animals that lack a skeleton entirely are very rarely fossilized.

Explanation:

Food webs are a group of connected food chains. Arrows in a food web go from the organism that is being eaten to the organism that is eating it. Food webs show that animals only eat one type of food. Arrows in a food web represent the flow of energy in a food web. Food webs show all of the eating patterns in an ecosystem.

Answer:

hi

Mostly will be earthquake

Answer:

I would say earthquakes, and i also recommend using jiskha to get answers to schoolwork, it gives better answers then brainly. Good luck:)

Explanation:

Explanation:

The surplus carbon is stored in the plant, helping it to grow. however when trees are cut down and burned or allowed to rot, their stored carbon is released into the air as carbon dioxide .

Answer: because the lesser trees the more carbon dioxide there will be plus your burning them down which just polluted it even more because the fire is releasing a lot of carbon dioxide

Explanation:

Several genetic mechanisms for defense against age-related disease may be studied in the genomes, according to scientists.

The numerous ways in which an individual interacts with some of its environments, whether in its responses to predators, food sources, and habitat, or in its relational or monogamous relationships with conspecifics, appear to be influenced by its behavioral phenotype.

Yes, it is conceivable for two people to have distinct genotypes and the same phenotype. Each parent contributes one allele to an individual, which may be considered dominant or recessive depending on the trait.

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Answer:

NAD+ (nicotinamide adenine dinucleotide) is indeed crucial for ATP production, even in anaerobic pathways such as glycolysis followed by fermentation. Allow me to explain the significance of NAD+ and its role in ATP production.

During glycolysis, glucose is broken down into pyruvate, producing a small amount of ATP and NADH. The conversion of NAD+ to NADH occurs during the oxidation of certain molecules, including glucose, in the pathway. This conversion is essential because NADH carries high-energy electrons that can be used in subsequent steps to generate more ATP.

In aerobic respiration, NADH is further utilized in the electron transport chain (ETC) within the mitochondria. The ETC transfers electrons from NADH to oxygen, generating a significant amount of ATP through oxidative phosphorylation. However, in anaerobic conditions where oxygen is limited, like during fermentation, the ETC cannot function.

Here's where NAD+ becomes critical. In order to keep glycolysis running and continue generating ATP, the NADH produced during glycolysis must be converted back to NAD+. This allows glycolysis to continue producing ATP, even without the presence of oxygen. Without a mechanism to regenerate NAD+, glycolysis would halt due to a lack of NAD+, leading to a severe reduction in ATP production.

Fermentation pathways differ depending on the organism, but they all involve the regeneration of NAD+. For example, in lactic acid fermentation, pyruvate is converted into lactate, which involves the transfer of electrons from NADH to pyruvate, regenerating NAD+. Similarly, in alcoholic fermentation, pyruvate is converted into ethanol, again regenerating NAD+.

In summary, NAD+ is essential in anaerobic ATP production because it serves as a coenzyme that accepts electrons and facilitates the conversion of NADH back to NAD+. By regenerating NAD+, cells can sustain glycolysis and continue producing ATP, even in the absence of oxygen.

According to the research, if a poison was able to block the gap junctions in the intercalated discs of cardiac muscle cells, it would prevent the exchange of chemical and electrical information, key to the cardiac function of cardiac muscle tissue.

It is each of the complex junction structures between two cardiac muscle cells, these junctions take place at the z lines of the sarcomeres of the muscle fibers.

In this sense, this large number of nexus-type junctions allows the transmission of nerve impulses that cross from one cardiac cell to another.

Therefore, we can conclude that according to the research, the intercalated discs support the synchronized contraction of cardiac tissue so if a poison was able to block the gap junctions, it would affect the transmission of electrical information.

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Answer:

a. When glasses (or contact lenses) are used to correct nearsightedness, the lens should form the image at the far point.

b. If a nearsighted person has a far point df that is 3.50 m from the eye, what is the focal length f1 the contact lenses that the person would need to see an object at infinity clearly?

f 1 = -3.50 m

Explanation:

a. Nearsightedness (the person cannot focus on the far point objects) physics of eyesight correction,  can be resolved by using focal length of concave lens as the corrective lens, which correct the eyesight artificially, as the eye’s lens bends the rays from a distant object too much and the rays are brought to a focus before they reach the retina.  A diverging lens bends the ray outwards before they reach the eye’s lens and the rays are brought to a focus on the retina.  

The lens formula to find the focal length of the lens is:

                      1/f = 1u + 1/v

Where, f is the focal length of the lens, u is the object distance, and v  is the image distance.

The light lands in front of the retina, so the image is forming in front of the retina .When concave lens used as a corrective lens the clear vision is achieved, helping to bend the rays of light outwards and the light converge further and reach the retina to form the imagemeaning the lens should form the image at the far point.

b.      The lens formula is,

                       1/f = 1u + 1/v

Here the object distance is infinity,so the reciprocal of infinity gives zero.

   Substitute 0.0  for u   and 0.0 -3.50 m    for   v  

1/f = 1/ -3.50m  + 1/ 0.0

Therefore, the focal length of the contact lenses that the person would need to see an object clearly is -3.50 m

Answer:

c

Explanation:

c is the answer .......

Answer:

B. cocaine

Explanation:

Answer:

Explanation:

vPoint Source - a source of water discharged to surface water through a discrete point - generally through a pipe, ditch, or channel.

Nonpoint Source - Nonpoint sources, such as parking lots or athletic fields, discharge runoff water to groundwater or surface water; runoff does not come from  a pipe, ditch, or channel. These sources may contain pollutants such as pesticides, motor oil, and soaps.

Navigable Waters of the United States  For the purposes of the Clean Water Act, the term "navigable waters" includes:

all waters used in commerce, including groundwater;

all interstate waters including wetlands, mudflats, and sand-flats; and

all other waters such as lakes, rivers, streams, wetlands and sloughs.

EPA policy states, "The majority of facilities in the U.S. have the potential to discharge to navigable waters."  The Supreme Court decision in (2006) requires the Army Corps of Engineers and the EPA to determine whether there is a "significant nexus" between a navigable waterway and an area a spill might affect.  In June of 2007, EPA and the Army Corps of Engineers released provisional interpretive guidance regarding the "significant nexus” question. According to this guidance, the agencies will assert jurisdiction over traditional navigable waters, wetlands adjacent thereto, and relatively permanent tributaries thereof. The agencies will generally not assert jurisdiction over swales and ditches that lack routine water flow. Finally, the agencies will apply the "significant nexus" requirement and make a case-by-case, fact-specific analysis on impermanent tributaries and other wetlands.

Additional executive orders were issued 2015 in 2019.  Under the 2019 proposal, traditional navigable waters, tributaries to those waters, certain ditches, certain lakes and ponds, impoundments of jurisdictional waters, and wetlands adjacent to jurisdictional waters would be federally regulated. It also details what are not "waters of the United States," such as features that only contain water during or in response to rainfall (e.g., ephemeral features); groundwater; many ditches, including most roadside or farm ditches; prior converted cropland; stormwater control features; and waste treatment systems.

Could the requirement for one or more NPDES Discharge Permit apply to my campus?

If your campus discharges pollutants directly to navigable waters of the United States through a point source, you must obtain an NPDES permit or redirect the flow of the waste.

Stormwater releases from certain activities require an NPDES permit. The most common activities on college campuses requiring NPDES permits for stormwater are construction activities disturbing more than 1 acre, hazardous waste storage areas operating under the Resource Conservation and Recovery Act permit system, steam-generating power plants, and airports. See Stormwater section below.

Regulations issued by local water authorities, or Publicly Owned Treatment Works (POTWs), not NPDES permits, govern discharges into sanitary sewer systems. See Sewer Use (POTW) section below for more information about requirements for using POTWs for commercial or industrial waste disposal.

What do I have to do related to NPDES Discharge Permits?

Determine where wastewater flows from buildings and processes on your campus. Any industrial or commercial operation (e.g., ice rink melt pits, floor drains, and vehicle wash stations) that discharge into a water of the United States may require an NPDES permit. If required, you must obtain such a permit from the appropriate regulatory agency, probably your state environmental agency.

French drains, dry wells, and septic system leach fields are different from point source discharges because they do not immediately affect surface water. Some state and federal environmental agencies manage these systems under the Underground Injection Control program, part of the Safe Drinking Water Act. See Safe Drinking Water Act for more information.

Details of NPDES

Answer:

ko

Explanation:

okok

Answer:

true

Explanation:

Answer:

Hey! :D

Explanation:

The gymnosperms, also known as Acrogymnospermae, are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and gnetophytes. The term "gymnosperm" comes from the composite word in Greek: γυμνόσπερμος, literally meaning "naked seeds". The name is based on the unenclosed condition of their seeds. The non-encased condition of their seeds contrasts with the seeds and ovules of flowering plants, which are enclosed within an ovary. Gymnosperm seeds develop either on the surface of scales or leaves, which are often modified to form cones, or solitary as in yew, Torreya, Ginkgo.

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