Examine the following diagram. Place the labeled layers in order from youngest to oldest.

Public Domain

A, B, C, D
C, D, B, A
D, A, B, C
C, B, A, D

Answer:

The goal of disinfection of public water supplies is the elimination of the pathogens that are responsible for waterborne diseases. The transmission of diseases such as typhoid and paratyphoid fevers, cholera, salmonellosis, and shigellosis can be controlled with treatments that substantially reduce the total number of viable microorganisms in the water.

While the concentration of organisms in drinking water after effective disinfection may be exceedingly small, sterilization (i.e., killing all the microbes present) is not attempted. Sterilization is not only impractical, it cannot be maintained in the distribution system. Assessment of the reduction in microbes that is sufficient to protect against the transmission of pathogens in water is discussed below.

Chlorination is the most widely used method for disinfecting water supplies in the United States. The near universal adoption of this method can be attributed to its convenience and to its highly satisfactory performance as a disinfectant, which has been established by decades of use. It has been so successful that freedom from epidemics of waterborne diseases is now virtually taken for granted. As stated in Drinking Water and Health (National Academy of Sciences, 1977), "chlorination is the standard of disinfection against which others are compared."

However, the discovery that chlorination can result in the formation of trihalomethanes (THM's) and other halogenated hydrocarbons has prompted the reexamination of available disinfection methodology to determine alternative agents or procedures (Morris, 1975).

The method of choice for disinfecting water for human consumption depends on a variety of factors (Symons et al., 1977). These include:

its efficacy against waterborne pathogens (bacteria, viruses, protozoa, and helminths);

the accuracy with which the process can be monitored and controlled;

its ability to produce a residual that provides an added measure of protection against possible posttreatment contamination resulting from faults in the distribution system;

the aesthetic quality of the treated water; and

the availability of the technology for the adoption of the method on the scale that is required for public water supplies.

Economic factors will also play a part in the final decision; however, this study is confined to a discussion of the five factors listed above as they apply to various disinfectants.

The propensity of various disinfection methods to produce by-products having effects on health (other than those relating to the control of infectious diseases) and the possibility of eliminating or avoiding these undesirable by-products are also important factors to be weighed when making the final decisions about overall suitability of methods to disinfect drinking water. The subcommittee has not attempted to deal with these problems since the chemistry of disinfectants in water and the toxicology of expected by-products have been studied by other subcommittees of the Safe Drinking Water Committee, whose reports appear in Chapter III of this volume (Chemistry) and Chapter IV (Toxicity) of Drinking Water and Health, Vol. 3.

Organization of the Study

The general considerations noted in the immediately following material should be borne in mind when considering each method of disinfection. Available information on the obvious major candidates for drinking water disinfection—chlorine, ozone, chlorine dioxide, iodine, and bromine—is then evaluated for each method individually in the following sections. Other less obvious possibilities are also examined to see if they have been overlooked unjustly in previous studies or if it might be profitable to conduct further experimentation on them. Disinfection by chloramines is dealt with in parallel with that effected by chlorine because of the close relationship the former has to chlorine disinfection under conditions that might normally be encountered in drinking water treatment.

Answer:

first blank dependent

second blank independent

Explanation:

Light Dependent reactions depend on light and right independent reactions don't

Answer:

Algae is the process to describe that diverse group of photosynthetic lifeforms.

Explanation:

Algae is that environments process to the rivers and lakes to ponds waters an snow, algae living in the contain snow pigments that addition to the surrounding contain distinctive.

Algae is environment near inside water bodies, algae in many components in plants as stems and shoots or leaves nutrients water their body.

Algae like plants an special structure and algae is well defined body in the structure stems and leaves are photosynthetic organisms, algae are free living and symbolic relationship other organisms, there are many types of algae:- Green algae, blue and green algae ,red algae.

Green algae:- green algae to that conduct photosynthesis symbolic relation with higher organisms.

Blue and green algae:- this algae are include dams, river, lakes.

Red algae:- red algae is used in species found in freshwater ecosystem.

Algae is in unicellular and multicellular in environment nature.

The lining of your nose contains many tiny blood vessels that lie close to the surface and are easily damaged.

The two most common causes of nosebleeds are:

Dry air — when your nasal membranes dry out, they're more susceptible to bleeding and infections

Nose picking

Answer:

Digested food molecules

Explanation:

Answer:

here

Explanation:

CaCO3 + H2SO4

-----> CaSO4 + H2O + CO2

Answer:

To activate the process of germination.

Explanation:

Answer:

Carbon Cycle

Explanation:

Answer:

C. could not provide a mechanism for moving continents

Explanation:

Magnetic reversals have the habit of causing geological displacements, since they are directly linked to the movements and distribution of tectonic plates on the planet, which are responsible for the movements of the continents. In this case,

if the discovery of magnetic reversals recorded on the ocean floor were not carried out, it would be impossible to establish its relationship with the movement of the tectonic plates, making it impossible to provide a mechanism for moving continents.

Answer:

B. Citric acid is added to the solution, but the pH of the solution does not change.

Explanation:

In chemistry, buffer solutions or simply called Buffer are solutions that resist a change in pH when an acid or base is added to them i.e they maintain a constant pH. This is as a result of the content of the solution. A buffer may contain a weak acid and its conjugate base (salt) or a weak base and its conjugate acid.

Hence, when a strong base or acid is added to them, they still restore the original pH of the solution due to the reaction that removes or neutralizes the hydrogen or hydroxide ions from the acid and base added to them respectively. This is what happens when Citric acid is added to the solution, but the pH of the solution does not change.

Citric acid, which is an acid, does not practically increase or decrease the pH of the solution. Hence, the solution is called a buffer.

Answer:

Citric acid is added to the solution, but the pH of the solution does not change.

Explanation:

Got it right on Apex

Hope I helped! :)

Answer:

D. A place for cellular reactions to take place

Explanation:

the cell membrane perfomes divers functions ranging from the  Keeping of all the parts of a cell inside, helping cell to alter its shape, allowing prokaryotes to use cell division. Most of the cell reactions happens in the Mitochondrion, not the CELL MEMBRANE

A place for cellular reactions to take place is not true about cell membrane .

Cell membrane forms barrier keeping the constituents of the cell in and unwanted substances out and to be a gate allowing transport into the cell of essential nutrients and movement from the cell of waste products.

The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment.

Hence, D is correct option

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Answer:

Meteor → a streak of light

Explanation:

Got it right on the test

A meteor is a streak of light.

The sun and the group of celestial bodies that are bound by gravitational force form a solar system. It was formed about 4.6 billion years ago.

A comet is a relic covered with dust, rock, and ice. It was formed during the solar system's formation. They have a diameter ranging from a few miles to tens of miles.

They are either metallic or rocky bodies and do not have atmospheres. Asteroids come in a variety of sizes and forms.

Planets are massive astronomical bodies that are neither stars nor remains of stars. They have an orbit and there are 8 planets in our solar system.

A meteor appears as a bright streak of light in the sky. It is a space rock that enters the earth's atmosphere. It is often known as a shooting star or falling star.

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Answer:

Deamination is the removal of an amino group from a molecule

Deamination is associated with deamination of protein​

Answer:

Answer:

The environment   play a role in people mental and physical being.

Explanation:

Environment  quality and human health  remain factors and taking into multiple interactions economic and cultural context.

Environment through air pollution, chemicals, poor quality water and natural area loss, increase in rates obesity, diabetes, and diseases.

Environment factors are particular matter, environmental tobacco smoke leading,and indicative ranking of environmental impacts of health.

Environment across depend on the pressures relate to pollution and natural resources,pollution reduction and the natural environment distribute populations.

Environmental quality can be policy and population group, incomes, elderly and the educational status, environment burden they focus on health and complex causal path.

Answer:

C. could not provide a mechanism for moving continents

Explanation:

Without the discovery of magnetic reversals recorded on the ocean floor, scientists  could not provide a mechanism for moving continents.

Magnetic reversals are responsible for geological shifts and depend on the distribution of tectonic plates that causes movements of continents.

Asymmetric movement of tectonic plates leads to movement of continents  and the degree of asymmetry varies with the same rythm of the magnetic reversal rate.

Hence, discovery of magnetic reversals are important to identify the mechanism for moving continents.

The study of a living being is called biology.

The correct answer is C.

Without the discovery of magnetic reversals recorded on the ocean floor, scientists could not provide a mechanism for moving continents because magnetic reversals are responsible for geological shifts and depend on the distribution of tectonic plates that causes movements of continents.

Asymmetric movement of tectonic plates leads to movement of continents and the degree of asymmetry varies with the same rhythm of the magnetic reversal rate.  Therefore the discovery of magnetic reversals is important to identify the mechanism for moving continents.

Hence, the correct answer is C that it could not provide a mechanism for moving continents.

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Answer:

The correct answer is - roundworms.

Explanation:

The answer is already mention in the question, however, the detailed answer is as follows:

The characteristics that are given in the question are true tissues, bilateral symmetry, and a pseudocoelom. Worms or helminths are known as primitive form of organization of the Bilaterians. All three group of worms or helmints have a basic bilateral symmetry.

These organisms inaugurated various characteristic that are found and carried by other animals such as  true tissues, bilateral symmetry, and a pseudocoelom.

Thus, the correct answer is - roundworms.

Answer:

its b

Explanation:

Answer:

solid

Explanation:

The two models explained are most closely representing the "solid" state.

As in both the models the techniques used are to separate particles through shaking technique and shaking is efficient gravity separation method which helps in separating solid particles such as while dealing with tungsten and tin.

Hence, the correct answer is "Solid".

Answer:

When the container was half full, the particles had more freedom to move around than they did when the container was full. A half-full container represents a liquid. When the container had only a few particles, they had lot more freedom to move about. So, this model represented a gas.

Explanation:

plato answer

Answer:the organelle which are found in both animal and plant cells are

Cell membrane

Cytoplasm

Nucelus

Golgi bodies

Ribosome and

Vacoule ( in different amount)

The structures that are found in both animal and plant cells are cell membrane, cytoplasm, golgi body, nucleus and ribosomes. The correct options are a, c, d, e, and f.

All living organisms and body tissues are made up of cells, which are the smallest unit that can live on its own.

A cell is made up of three major components: the cell membrane, the nucleus, and the cytoplasm. The cell membrane surrounds the cell and regulates the substances that enter and exit the cell.

Plant and animal cells are structurally very comparable because they are both eukaryotic cells.

The nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes are all membrane-bound organelles in both.

Plant cells lack centrosomes and lysosomes, whereas animal cells do. Plant cells always possesses a cell wall, chloroplasts as well as other specialized plastids, and a large central vacuole, whereas animal cells do not.

Thus, the correct options are a, c, d, e, and f.

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Answer:

Through combination of each monomer using covalent bonds.

Explanation:

Most macrmolecules are made from single subunits or building blocks called monomers combine with each other using covalent bonds to form larger molecules known as polymers. In doing so, monomers release water molecules as byproducts.

Answer:

Explanation:

7 Important Functions of Protein in Your Body

   Causes Biochemical Reactions. ...

   Acts as a Messenger. ...

   Provides Structure. ...

   Maintains Proper pH. ...

   Balances Fluids. ...

   Bolsters Immune Health. ...

   Transports and Stores Nutrients.

Answer: A short-day plant will not flower if light is turned on for a few minutes in the middle of the night and a long-day plant can flower if exposed to more red-light in the middle of the night. Cryptochromes are another type of photoreceptor that is important in photoperiodism. Cryptochromes absorb blue light and UV-A.

Explanation:

Answer:

Blue and Red

Explanation:

The highest spike of chlorophyll B on this graph is between 400 and 500nm, making it a shade of blue. The second spike is between 600 and 700nm, making it a shade of orange-red.

the answer is blue\///////

Answer: Lymphatic system

Explanation:

Not respiratory and excretory for sure.

Not nervous because the diagram doesn't show spinal nerves clearly. So its lymphatic system.

:-)

Answer: the modern production of the cars change the way of transportation

Modern houses change the way where people locate

Another example of how technology has changed how people live is the widespread use of smartphones and mobile applications.

Smartphones have become an integral part of daily life for many people, revolutionizing the way we communicate, access information, and carry out various tasks.

Some ways in which smartphones and mobile applications have transformed our lives:

1. Communication: Smartphones have made communication more convenient and accessible. With features like instant messaging, video calls, and social media apps, people can easily connect with others regardless of their location.

2. Information Access: Smartphones provide instant access to a vast amount of information through the internet. With a few taps on a smartphone screen, people can search for news, look up facts, find directions, or access educational resources.

3. Online Shopping: E-commerce platforms and mobile shopping apps have revolutionized the way people shop. With smartphones, individuals can browse and purchase products or services from anywhere, anytime.

These are just a few examples of how smartphones and mobile applications have significantly changed the way we live.

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Answer:

It is called EXCRETION.

Explanation:

This is a process by which metabolic waste is removed from a living organism.

The excretory organs removes these waste.

Accumulation of these in the body is very harmful to our system.

Hope all these helps.

Answer:

"Podocytes are cells in the Bowman's capsule in the kidneys that wrap around capillaries of the glomerulus. Podocyte cells make up the epithelial lining of Bowman's capsule, the third layer through which filtration of blood takes place.[1] The Bowman's capsule filters the blood, retaining large molecules such as proteins while smaller molecules such as water, salts, and sugars are filtered as the first step in the formation of urine. Although various viscera have epithelial layers, the name visceral epithelial cells usually refers specifically to podocytes, which are specialized epithelial cells that reside in the visceral layer of the capsule. "

Explanation:

hope this helps

Answer: Probability: 0%

Explanation:

Hardy-Weinberg establishes that the genetic composition of a population remains in equilibrium as long as no natural selection or other factors act and no mutations occur. This means that the children of this couple will inherit the genes of the parents.

The woman is phenotypically normal with no family history of PKU, this mean that probably there are no affected (recessive) alleles in her family. In an autosomal recessive disorder, both copies of the gene in each cell are recessive. Therefore, her genotype will be AA with A being the dominant and normal allele. As for the Irish man, his sister does have PKU, which means her genotype is aa. So, she must have received a defective allele from each parent. Then the parents' genotypes are both Aa (heterozygous, only one allele affected as they are healthy). So, we know that the Irish man does not have the disease (he can't be aa), but he could be Aa (having inherited a normal allele from one parent, and an affected one from the other parent) or AA (having inherited both normal alleles from each parent).

Then we have two possible punnetts square to do: AA (the Irish woman) and AA (he Irish man); or AA (woman) and Aa (man).

In the attached figure both punnetts squares are shown. The first punnett square (AA x AA) shows that 100% of the offspring will be AA (this means, the phenotypic ratio is also 100% not affected and non-carrier). The second punnett square (AA x Aa) shows that 50% will be AA (healthy and non-carrier) and 50% will be Aa (heterozygous, healthy and carrier) But since it is an autosomal recessive disease, a single affected allele is not enough to develop the disease. So in neither case is there a chance of having a child with PKU.

Answer:

so1: he wrote that their joy may be complete,that they may not sin and also that they may not be deceived.

2:John says that God is light and love

3:so John calls a liar whomever says that they have not sinned or say they know Jesus but don't obey his commandments or denies that Jesus is the Christ

4:I guess is the manifestation of God's word through Jesus Christ

5: the blood of Jesus cleanses us from all sins

6:a Christian should confess their sins

7:everything of this world,lust and pride,are not of God but of this world

8:he called them little children and father's

9:he defines sin as lawlessness

10:he says that none of them commit sin but God's nature abides in the person therefore for those born of him can't commit sin

11:he used Cain who murdered his brother

12:he calls them a murderer

13:he says that we should love in deed and I'm truth

14: because of the presence of many false prophets in the world

Answer:

what he said.how did you type all of that in one sitting