About how much moisture can air hold at 20°?

Answer: physical change

Explanation:

A physical change is defined as a change in which there is alteration in shape, size etc. No new substance gets formed in these reactions.

Example: Dissolution of salt in water

A chemical change is defined as a change in which a change in chemical composition takes place. A new substance is formed in these reactions.

Example: Oxidation of magnesium to give magnesium oxide

[tex]2Mg+O_2\rightarrow 2MgO[/tex]

Thus physical change occurs when salt dissolves in water.

Answer: a) they can use damage to property, sometimes even burying

Explanation:

A mass movement or mass wasting is natural phenomena in which the unstable materials like stones, boulders, sediments move down the slope under the influence of gravity. The fall of material can cause huge damage on villages settled at the hilly region. This can cause loss of property and lives. This can lead to burying of individuals.

Answer:

The phenotypic ratio for the neurofibromatosis gene would be 1:1.

This is because woman has one dominant allele for neurofibromatosis, so there would be 50% of female gametes with dominant allele for neurofibromatosis. On the other hand, man is normal, so there would be all normal male gametes. Therefore, half of their progeny would have neurofibromatosis from mother.  

Further explanation:

A). Dominant autosomal genetic disease.

A dominant autosomal genetic disorder can be defined as disorder, in which one mutated copy of gene (allele) is sufficient to affect the person. It is known as autosomal disorder as genes for this disease are present on autosomes.  

B). Red-Green Color blindness.

Red-green color blindness is a sex-linked recessive genetic disorder, which mutated gene is present on X chromosome (sex chromosome). It is know as recessive as it is expressed only if both the recessive copies of X chromosomes are present.  

C). Phenotype.  

Phenotype of an individual can be defined as a set of features or characteristics, which are observable or expressed physically. For example, height, color of eye or hair, or observable traits for a disease

D).Phenotypic ratio of for diseased gene in children.  

People with autosomal dominant disorder are affected with disorder either in heterozygous or homozygous dominant conditions. In this case, female is heterozygous and affected.  

Assume genotype of woman is Aa (where 'A' represents dominant allele and 'a' represents recessive allele for neurofibromatosis).  

On the other hand, man is normal for neurofibromatosis as he has both recessive alleles for neurofibromatosis. Assume genotype of man is aa (both recessive alleles).  

Even if the man is affected with color blindness, there is no role of color blindness (a sex-linked disorder) in inheritance of neurofibromatosis, which is an autosomal disorder.  

So, the phenotypic ratio for neurofibromatosis can be determined as:  

Parents:                Woman                 X               Man

                              (Aa)                                       (aa)

Gametes:                  ↓                                            ↓

                         A           a                                      a          

                      (50%)     (50%)                             (100%)

Children:                 Aa (with diseased phenotype) = 50%

                              aa  (normal normal phenotype) = 50%            

(For more information please find the Punnet square attached with answer).  

Thus, phenotypic ratio for the neurofibromatosis would be 1:1 as 50% of their children are affected with disease.  

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Grade:  5-9.

Subject: Biology

Subchapter: Genetics

Keywords: Autosomal dominant genetic disorder, color-blindness, X-linked recessive trait, phenotypic ratio.

The phenotypic ratio of neurofibromatosis gene will be 1:1 that is the 50% of the offspring will be affected.

Further Explanation:

Homozygous is the condition in which a particular gene has similar alleles present on a homologous chromosome. While on the contrary heterozygous condition is when a particular gene has dissimilar alleles present on the homologous chromosome.  

If we take an example of Height where (T) represent tall and (t) represents dwarf, the homologous and heterologous condition can be represented as,

TT – tall homozygous condition

Tt- tall heterozygous condition

Autosomal dominant genetic disease- In this condition only one ‘dominant’ gene is enough to cause a disease or a condition. This occurs in only autosomes that is 22 pairs of chromosome other than one sex chromosome. In short the diseases which are caused by transfer of dominant autosomes which are affected are autosomal dominant genetic disease.

Neurofibromatosis- This is a genetic disorder which causes development of tumors in nerve tissue. These tumors can develop in any part from nerves, spinal cord or brain.

Let us consider the condition given in the problem,  

Woman is heterozygous for neurofibromatosis- Nn

Man is homozygous recessive for neurofibromatosis- nn

The gametes which can be formed from Nn is N and n, while from nn two gametes n and n can be formed as shown in the image attached below.

The punnett square showing the number of offspring there genotype and phenotypes can be visualized in the image attached below.

We have the genotypic and phenotypic ratio as,

Genotypic ratio- 1   :   1

                    1 heterozygous dominant: 1 homozygous recessive

Phenotypic ratio- 1   :  1

                        1 neurofibromatosis: 1 non- neurofibromatosis  

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Answer Details:

Grade: High school

Subject: Biology

Chapter: Genetics

Keywords:

Heterozygous, homozygous, neurofibromatosis, dominant, recessive, genetic disease, color blindness, children, offspring, phenotypic ratio, genotypic ratio, Heterozygous dominant, homozygous recessive.

Answer:

Explanation:

Experiment 1.

Experiment 2

Experiment 3

Answer:

The correct option is ALL OF THE CHOICES ARE CORRECT.

Explanation:

Germicidal chemicals are chemical substances that are normally used to eliminate germs. There are many factors that one needs to consider when it comes to choosing and buying the right germicide. For instance, one has to consider the suitability of the germicide with the material that is been treated, one has to consider the impacts of the chemical on the environment, one also has to consider the cost, toxicity, safety and other factors. Thus, all the factors given in the options have to be considered when one is trying to decide on the right germicide.

Final answer:

When alleles are codominant, both are expressed equally in the phenotype. This is observed in the AB blood type in humans, where both A and B antigens are visible. Codominant traits lead to unique phenotypes with both inherited traits being equally expressed.

Explanation:

When alleles for a trait are codominant, it means that both alleles are expressed equally in the phenotype of the organism. Unlike complete dominance where only the dominant allele is visible, or incomplete dominance where a blend of both alleles is seen, codominance allows each allele to maintain its identity and be seen distinctly in the phenotype.

A classic example of codominance can be found in the ABO blood group system. Individuals with type AB blood inherit one A allele and one B allele. These alleles are codominant, allowing for the expression of both A and B antigens on the surface of red blood cells. Likewise, in plants, a flower with codominant alleles for petal color may display both red and white petals simultaneously. This distinct expression of both alleles leads to unique phenotypes that do not blend but rather are expressed together.

In a Mendelian monohybrid cross involving codominance, the heterozygous offspring will express both alleles. The genotypic ratio remains the classical 1:2:1, typical of Mendelian inheritance, yet the phenotypes will distinctly show both inherited traits.

Answer:

Option (C).

Explanation:

Cell theory states that all organisms are consist of cells and it is the structural and functional unit of life. All cells comes from the already present pre-existing cells. Cell theory was given by Schleiden and Schwann.

The image shown in the question shows that organisms are made up of large number of cells. Living organisms constitute different types of cells.

Thus, the correct answer is option (C).

The answer is A, ancient plant remains

Explanation:

Final answer:

Coal is composed mainly of ancient plant remains that were subjected to high temperatures and pressures over millions of years, resulting in a combustible sedimentary rock that can be used as fuel.

Explanation:

Coal is composed of ancient plant remains. It is a complex solid material that originates primarily from plants that died and were buried under sediment millions of years ago. These plants were then subjected to high temperatures and pressures, leading to the formation of coal. Coal is considered a sedimentary rock, and in some classifications, it is also identified as a biologic sedimentary rock because it forms from the accumulation and alteration of plant matter. There are four main types of coal, which are lignite, subbituminous, bituminous, and anthracite, with anthracite being the highest rated due to its heat generating capacity and lower sulfur content.

Answer:

In Biology, the terms "fitness" and "adaptation" go in hands with hands. Fitness can be defined as the capability of an organism to cope with environmental fluctuations in such a way that it is better able to reproduce and survive in that environment. This process in turn increases the adaptation of an organism for that environment. So adaptation can be considered as the process in which living organisms due to their better fitness acquire some characteristics which help in their improved survival.

The more an organism possesses fitness, the more it will have the adaptations towards adverse environmental fluctuations and ability to survive.

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Answer:

carbohydrates are important in the body because they contribute to the body's ability to produce ATP

Answer:

To produce ATP.

Explanation:

Carbohydrates are important in the body because they contribute to the body's ability to produce ATP.

When a person eats food, the carbohydrates in it are broken down which in turn produce an energy rich component called ATP (adenosine triphosphate).

These carbohydrates are broken down by certain enzymes in the small intestine which are present in the form of glucose which then yields ATP to drive the cell.

Answer:

Many hormones cause the heart to pump faster

Explanation:

However, norepinephrine (NE) is one of the more important hormones. It is involved in the fight-or flight response, where it increases heart rate, blood pressure, and blood flow to skeletal muscle.

Access to potable water is most heavily limited by money.

Money can be a limiting factor for people, and with the lack of money, accessing potable water may be difficult.

Answer:

Around the world the most significant restriction on access to potable water is money. While access to raw water sources, clean or otherwise, is important, the purification process itself is expensive. Once water has been rendered potable, it is important that it be delivered without reintroducing contamination. The most convenient way to deliver potable water is through underground pipes, which requires expensive infrastructure.

Explanation:

Answer:

it is c

Explanation:

principle of acquire trait

his Principe is is not world widely because of the assumption that acquired train are present in the gene

Answer:

C.  the principle of acquired inheritance

Explanation:

The principle of acquired inheritance was developed by Malthus and influenced Darwin.

Answer C The light dependent reactions will not occur

Explanation:

Plants wilt without sufficient water due to loss of turgor pressure and water moving from the plant to the soil under drought conditions.

If there is not sufficient water, pressure exerted by the vacuole is reduced, and the cells become flaccid causing the plant to wilt. Dry soil has a lower water potential than wet soil, leading to water moving from the plant to the soil. Under drought conditions, the stomata close to conserve water, and leaves may be shed if the drought continues.

Answer:

Explanation:

A: carry nerve impulses from the brain to skin, glands & muscles.

Answer:

The enzyme will no longer bind to the substrate, slowing or stopping the chemical reaction

Explanation:

The enzyme will get denatured and therefore its active site (that binds the substrate) will be deformed and unable to catalyze reactions. The enzymes, mostly made of folded proteins, are made stable by the interactions between the protein’s amino acids side groups. Changes in the pH of the solution influence the charges of these groups hence altering their interactions. This causes the protein enzyme to deform causing it to lose its function.

Answer:

Neap tide

Explanation:

When the sun and the moon are positioned as such that a right angle is created, as shown in the picture, neap tides occur. This is because the moon and the sun are pulling in directions perpendicular to each other.Because the pulls are working against each other, so the bulges each create kind of spread out or cancel out. That's why they are weak.

Answer:

Neap tide

Explanation:

Neap tide is the type of tide that occurs when the moon is in its first and third quarter or when the moon appears half full in the sky.

The neap tide is also referred to as the smallest difference between the high and low tides.

They are gotten by picking the two lowest high tides of the month.

Technologies such as Carbon Capture and Storage (CCS), clean coal technology, and the use of renewable energy sources can help solve the pollution problems caused by burning coal to generate electricity.

The pollution problem caused by burning coal for electricity can be addressed using new technologies in various ways. One method is Carbon Capture and Storage (CCS), a technology designed to trap and store carbon dioxide produced from coal-fired power plants to prevent it from being released into the atmosphere. Another way is the use of clean coal technology, aimed at improving the efficiency of coal burning and reducing greenhouse gas emissions.

Furthermore, exploring and expanding the use of renewable energy sources such as wind, solar energy, and hydropower as an alternative to burning coal plays a significant role in reducing pollution and counteracting the warming effect on the planet.

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Answer:

This is an illustration of coevolution.

Explanation:

The procedure by which two or more species evolve in tandem by imparting selection pressures on each other is known as coevolution. The examples of coevolutionary systems comprise predators and prey, host and parasites, and symbiotic or mutualistic associations. Thus, the given association between the moth and orchid is an example of coevolution as both the species of moth and orchid are getting evolved in the company of each other, that is, by imparting selection pressures on each other.

Answer:

Deoxyribonucleic acid

Explanation:

Answer:

DNA(Deoxyribonucleic acid)

Explanation:

Deoxyribonucleic acid, or DNA, is the genetic material of all cellular organisms (and most viruses).

It determines the physical and physiological characteristics of individuals, and genes are fragments of DNA that contain the information necessary for the formation of body components, such as the anatomy of the heart, the color of the eyes, the functioning of various organs, and many others.

Answer:

NO

Explanation:

it’s not possible to prevent a Zika infection, although scientists are working to develop a vaccine. While using bug spray and wearing clothing that covers the skin can reduce the risk of infection, they are not completely effective.

NO, it’s not possible to prevent a Zika infection, although scientists are working to develop a vaccine. While using bug spray and wearing clothing that covers the skin can reduce the risk of infection, they are not completely effective.

A: The most common symptoms of Zika virus sickness are fever, rash, headache, joint ache, purple eyes, and muscle ache. Many people infected with Zika won't have signs and symptoms or will have moderate symptoms, which could ultimate for several days to every week.

The Zika virus is most customarily unfolded to someone through the chunk of an inflamed mosquito. If a mosquito bites someone who's already inflamed with the Zika virus, the virus infects the mosquito. Then, whilst the inflamed mosquito bites another man or woman, the virus enters that individual's bloodstream and causes an infection.

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Answer:

controlled experiments

Explanation:

Experiments in which all variables are identical except for one are called controlled experiments. This where an observer tests his hypothesis by looking on changes that were brought about by one variable. The results are always dependent on one adjusted variable.

ANSWER:

The controlled experiments are the ones in which all variables are identical except for one.

EXPLANATION:

Answer:

The correct answer option is A. Acetylcholine.

Explanation:

Acetylcholine is that neurotransmitter which stimulates the beginning of the muscle contraction and movement its movement.

The muscle tissues are composed of cells known as the muscle fibers. The nerve terminals present at the neuro muscular points releases a chemical message which is actually released by the motor neuron.

This  neurotransmitter called acetylcholine binds itself to receptors on the outside of the muscle fiber which then causes muscle contraction and movement.

Answer:

A. Acetylcholine

Explanation:

Answer:

ATC GAA CCG TA

Explanation:

so, for every A, T is paired with it

for every C, G us paired with it

Answer:

The answer is Isoleucine, Glutamate and Proline.

Explanation:

First, the sequence needs to be transformed from DNA to RNAm, so the A's are transformed into U (uracil in RNA) and the G's are transformed into C's (and vice-versa) and the T's into A's. Then, when the RNAm chain is obtained, the first trio turns into (AUC) that codes for Isoleucine, then the second one is (GAA) and it's Glutamate, and finally the third trio codes for Proline (CCG). The fourth part only has two nucleotides so it's impossible to know the amino acid to which it codes.

Involuntary movements means that you can not control whether it does its function or not. This would include your heart. The muscular system includes these involuntary movements. The heart is a muscle and there are muscles in the digestive system that constrict to move food through our body.

This means that the answer is Muscular system.

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Answer:

The correct answer is B, Muscular system.

In a constant environment, the population tends to fluctuate so that it climbs until its to much to be sustained. The population then falls. If there is enough food for 25 bugs in an area but there are 50 bugs, chances are a lot of the bugs will die

Answer:

South

Explanation:

The declination of a star is measured in degrees, whether if it’s north (+) or south (-). Also, the declination has a central line that defines the north and the south that is called the celestial equator. If a star has a +90 degree declination, then it’s referring to the North Celestial Pole; and if the star has a -90 degree declination, then it’s referring to the South Celestial Pole.

Answer:

Your body uses protein to build and repair tissues. You also use protein to make enzymes, hormones, and other body chemicals.

Protein is also important for the repair bones, muscles, cartilage, skin, and blood.

Breaking down carbohydrates yields monosaccharides such as glucose and galactose. Breaking down proteins yields amino acids. These subunits are essential for energy and various bodily functions.

When carbohydrates are broken down, they yield monosaccharides such as glucose, galactose, and fructose as products. These monosaccharides are simple sugars that can be absorbed by the body and used for energy.

On the other hand, breaking down proteins yields amino acids as products. Amino acids are the building blocks of proteins and are crucial for various functions, including building and repairing tissues, making enzymes, and supporting immune function.

Incomplete question-

Proteins and carbohydrates perform various functions in the body. They are needed for the proper development and growth of the body. Breaking carbohydrates into their subunits will yield _____ as products. Breaking down proteins will yield _____as products.

Answer:

Hydrogen bond

explanation :

slight positive charges on the hydrogen atoms in a water molecule attract the slight negative charges on the oxygen atoms of other water molecules. This tiny force of attraction is called a hydrogen bond. This bond is very weak.

Answer:

The ratio of hydrogen atoms to oxygen atoms is 2 to 1

Explanation: