I REALLY NEED HELP Time limit


in the late 1980's scientists began to notice that some strains of staphyloccoccus aureus bacteria were becoming resistant to topical antibiotics used by dermatologists to treat acne. By the year 2000 over 100 strains of staphyloccoccus were resistant to almost all antibiotics and scientists had to develop a new plan to kill the. Explain what happened geneticlly in the bacteria population over time as skin infections caused by staphyloccoccus aureus, were exposed to topical antibiotics.

Answer:

the elipsophre state

Explanation:

this is when the muscles and skine start to spoil

Answer:

D) there is a trade of between the two variables

Explanation:

this makes more sense

Answer:

A fat molecule comprises of a glycerol backbone and three fatty acid tails.

The structure of phospholipids comprise of two fatty acid tails instead of three. The third carbon of the glycerol backbone is attached to a phosphate molecule. The phosphate molecule is absent in the structure of a fat molecule.

Answer:

First, let's add the missing piece- the article

"Well, we haven’t read the articles yet, but I have their titles here. You can read them,” Alana said as she handed a paper to her mother with the following list:

1. Long-Term Cell Phone Use Spurs Tumor Growth

2. Mobile Phone Use and Acoustic Neuroma

3. Study Links Mobile Phones, Benign Tumors

4. Cell Phone-Tumor Link Found?

5.Study Indicates Mobile Phones Increase Tumor Risk

“Now I’m even more confused. Do cell phones cause cancer or not? Can I use mine or not?” asked Alisa impatiently.

“In my next class we’re going to read the articles, so I will tell you everything then,” concluded her sister.

Then the Answer to our question:

Both headlines 4 and 5 outline the exact same way, with little or no difference in the headline structure. On a closer look, we can infer that scientific research 4 looks less definite in a risk being found research. Unlike 5 which looks more definite in combining mobile phones with acoustic neuroma.

Answer:

Natural resources will be the resources which will be the building material for our house. Such resources include wood, clay or cement, steel and any other materials of such kind.

Human resources will be the humans which we will be using for the building our house. These will include the laborers, the carpenters, gardeners, welders, electricians etc.

Capital goods will be all the things with which we will stack our house such as food, furniture, appliances etc.

Answer AND Explanation:

While building a house, different resources are harnessed to complete the work. These resources include natural resources that constitute the building materials. They can be wood, cement, nails, stones and other related materials. The human resources include people who provide mechanical support to build the house.  These are the carpenters, bricklayers, welders and plumbers. The capital goods are the essential things to stock the house with such as furniture and the money for labour.

Explanation:

The difference between the human hand and that of the cat are uses of the appendage and the size and number of certain bones. The human arm is used for a variety of functions while the lizard's and the cat's are used for walking an climbing,

Final answer:

The human arm and the cat's forelimb share a similar bone structure with a humerus, radius, and ulna, pointing to a common evolutionary ancestor. Their functions differ, with human arms optimized for manipulation and cat forelimbs for locomotion.

Explanation:

Comparing the forelimbs of a cat to the human arm reveals significant anatomical similarities. Both contain a single upper bone known as the humerus, and two lower bones, the radius and ulna. Additionally, both limbs include carpals (wrist bones), metacarpals (hand bones in humans, paw bones in cats), and phalanges (fingers in humans, toes in cats). These structural similarities point to a common evolutionary ancestor. However, the functions of these limbs differ; the human arm is adapted primarily for manipulation and complex movements, while the cat's forelimb is adapted for walking, running, and climbing.

The bones of mammals like humans, cats, and whales all follow this basic design, indicating homologous structures that have evolved over time to perform different functions in different species. For example, the human arm is used for throwing, whereas the cat's forelimb is for locomotion, and the whale's flipper is for swimming. The construction of these body parts is controlled by Hox cluster genes, further underscoring their shared biological heritage.

Explanation:

The compounds are lipids

Organic compounds in nature may be large chains of monomers forming biological macromolecules which perform many essential functions in the body. Nucleic acids, sugars, proteins and lipids may be included. These are organic molecules, containing ringed or long-chain Carbons bound to oxygen (O), hydrogen (H), nitrogen (N), and phosphorus (P) elements; they are contained in important organic biomolecules, including proteins, nucleic acids, lipids, and carbohydrates.

Lipids serve as energy storage and chemical messengers for oils, saturated and unsaturated fatty acids with double bonds and waxes and steroids. Nevertheless, lipids consist of fatty acids and glycerol; they do not comprise a fixed set of monomers, and they are not polymers, unlike the other biological macromolecules. Such non-polar macromolecules can offer hydrophilic and hydrophobic properties through the arrangement of hydrophobic heads and hydrophobic fatty acid tails. Specific makeup: C, H, O; non-polar-a triple condensation reaction creates molecules bound to three long-chain carboxylic acids from a single hydroxyl (OH) alcohol.

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Answer:

A - Lipids

Explanation:

I got it right.

Answer:

In a pedigree, a vertical line and a bracket connect parents to their children.

Explanation:

A pedigree can be described as a diagram which depicts the lineage of a person and shows his/her ancestors in a pattern. A pedigree is very helpful in understanding any genetic disorders which occur in a family. It helps the doctor conclude that whether the parents will have the probability of having a normal child or not.

In a Pedigree, a vertical line will be drawn to show the parents and their children. A horizontal line is drawn between the parents.

Answer:

Atmosphere

Explanation:

The water cycle classifies the water reservoir as a surface or atmosphere. Water on the surface can be a lake, river or soil. This water will flow to the ocean, where it can easily get evaporated into water vapor.

Water on the atmosphere is not only water vapor, but it can also be snow or cloud so option A is wrong. Another option is describing the process that moves the water to different reservoir.

Answer:

Answer: If you compare them, Denver has a much colder climate

Explanation:

Explanation:

Answer:

Yes, classification system can change with time due to the improved understanding of organisms around us and majorly due to evolution.

Explanation:

Answer:

The main purpose Ramsar Convention is to protect and preserve the wetlands.

Explanation:

Answer: wetlands

Explanation:

Answer:

Favors random changes (retinal tear)/ nerve cells in front of retina

Explanation:

i could only say 2 i dont know the other one.

Final answer:

Three imperfections of the vertebrate eye include the presence of a blind spot, variability in visual acuity and sensitivity among different species, and astigmatism as a vision defect.

Explanation:

Three imperfections of the vertebrate eye are the presence of a blind spot, variability in visual acuity and sensitivity among different species, and the occurrence of astigmatism as a vision defect.

The blind spot is caused by the positioning of nerve cells and blood vessels in front of the light-sensitive cells of the retina. This design flaw is a result of the evolutionary path that led to the vertebrate eye.

Visual acuity and sensitivity differ among species based on their ecological niches. For example, eagles have a higher visual acuity than humans due to their specialized life-style.

Astigmatism is an unevenness or asymmetry in the focus of the eye, resulting in elongated or blurry images. It can be caused by irregularities in the cornea, lens, or retina.

Answer:

In a pedigree chart, the line which is horizontal shows the parents which mated and produced the children which are represented in the vertical lines below them.

A pedigree chart can be described as a diagram which illustrated the sequence of ancestors of an individual. Often, a pedigree chart is used to look for genetic traits or genetic disorders which might run in the family history. Pedigree charts are important for understanding the probabilities of the offsprings in which a genetic disorder might occur due to family history.

T-cells reach maturity in the Thymus

Explanation:

The thymus is a lymphoid organ located in front of the heart and behind the sternum. The progenitors of T-cells are produced in the bone marrow in  a process called hematopoiesis. They then migrate to the thymus where they mature and develop their specific antigenicity. Only about 20% of the progenitor T-cells mature. The rest mainly get destroyed by apoptosis.

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Answer:

A scientific inquiry can be described as the different ways in which scientists tend to study about the phenomenons occurring in the natural world.

To make advances in scientific inquiries, scientists have to come forward with better technologies than the past to get a better understanding of the events occurring in the natural world.

For example, the telescope was the technology designed by Galileo in 1609 for astronomical observations. The reflecting telescope was designed by Newton in 1668 which was far better than Galileo's telescope and could make better observations.

The development of reflecting telescopes, initially driven by the need for more accurate astronomical observations, showcases how scientific inquiry spurs technological advances.

Answer: C) gas; liquid

Explanation: There are three states of matter: solid, liquid and gas. Water can exist in these three states. Water is a liquid but when heat energy is applied to it, the temperature rises until it reaches its boiling point where it begins to boil and as water boils, it changes to gaseous state i.e., it turns to vapor. When heat is removed, the temperature decreases and the vapor condenses to liquid and if the heat removal continues, the temperature continues to drop until it reaches its freezing temperature (0°C) where it changes from the liquid to ice (the solid state).

Answer:

It is not 4.

Explanation:

Answer: The genotypes of the F1 generation are BbTt and Bbtt.

The probability of having a genotype BbTt is 1/2

The probability of having a genotype Bbtt is 1/2.

The phenotypes of the F1 generation are black trotter (BbTt) and black pacer (Bbtt)

The probability of having a black trotter is 1/2

The probability of having a black pacer is 1/2

Explanation: From the information provided, the genotype of a homozygous black pacer is BBtt while the genotype of a homozygous chestnut, heterozygous trotter is bbTt.

A dihybrid cross between BBtt and bbTt will produce sixteen offsprings in F1 generation. The genotypes of the F1 offsprings is 8 BbTt and 8 Bbtt.

The probability of having a BbTt genotype is 8/16 =1/2

The probability of having a Bbtt genotype is 8/16 = 1/2

The genotype BbTt is heterozygous black, heterozygous trotter.

The genotype Bbtt is heterozygous black, homozygous pacer.

The phenotypes of the F1 offsprings are black trotter and black pacer.

The probability of having a black trotter is 8/16 = 1/2

The probability of having a black pacer is 8/16 = 1/2.

The genotype and phenotype for F1 generation are  BbTt and Bbtt and the probability for F1 generation is 50%.

The genotype of an organism is the collection of genes, that contribute to the traits and characters of the organism.

In the F1 generation, a dihybrid cross between BBtt and bbTt will generate sixteen offspring.

1. The F1 offspring had genotypes of 8 BbTt and 8 Bbtt.

The probability of BbTt genotype is [tex]\dfrac{8}{16} =\dfrac{1}{2}[/tex]

The probability of Bbtt genotype is [tex]\dfrac{8}{16} =\dfrac{1}{2}[/tex]

2. Black trotter and black pacer are the phenotypes of the F1 offspring.

The probability of black trotter is [tex]\dfrac{8}{16} =\dfrac{1}{2}[/tex]

The probability of black pacer is [tex]\dfrac{8}{16} =\dfrac{1}{2}[/tex]

Thus, the probability for genotype and phenotype of F1 generation is 50%.

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Answer:

the outer planets are primarily composed of gasses. also the outer planets are considerably bigger than the inner ones

Answer:

Outer planets are called gas giants.  Outer planets have a high gravity.

Explanation:

Answer:

Darwin's finches

Explanation:

Darwin's finches are the 13 different species of bird which he observed on the Galapagos island during his voyage on the H.M.S Beagle.  The study of these finches helped Darwin to propose the phenomenon of natural selection. According to Darwin, the 13 different types of finches arose because of the different modes of nutrition for the birds located on each island. Through natural selection, those traits evolved which made the species more adaptable to live on the particular island

Answer:

Answer: there must be genetic variation in the population

Explanation:

A PEX

For natural selection to happen, the system must not be in Hardy-Weinberg equilibrium. This means that there must be variation in the population, and that the frequency of alleles in the population must be changing over time.

Additionally, the variation in the population must be heritable, meaning that it can be passed on to offspring. This allows certain traits to be passed on more frequently than others, leading to changes in the population over time.

Competition for resources is actually an important driver of natural selection, as it leads to differential survival and reproduction based on traits that are advantageous in obtaining resources.

The population size and carrying capacity may also play a role in natural selection, but they are not essential requirements for it to occur.

All organisms having the same alleles is not possible in a natural population due to mutations, genetic drift, and gene flow, and it would actually limit the potential for natural selection to occur.

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Answer:

Which religious texts are associated with Judaism?

Avesta and Torah

Explanation:

Both avesta and torah are associated with Judaism

Answer:

The two religious texts associated with Judaism are:

Explanation:

The Torah and the Talmud are the two bases used by Judaism, on the one hand is the Torah where are what would commonly be the first five books of the Bible (the pentateuch) written by Moses, since in his view the Messiah has not yet arrived and they are still waiting for him, on the other hand, the Talmud is a compendium of all the rabbinical discernment through time that allows the Jews to better understand the word of God.

Lack of interaction with social and cultural environments transforms people into members of society is a false statement.

Explanation:

Socialization which involves social interaction of people with each other will help transform themselves into active members of society.

The way we interact and project ourselves to our friends, relatives, parents, teachers, colleagues, neighbors and others grades our socialization process.

Knowing about the social and cultural environment of society and interacting with others based on that knowledge will help an individual to interact closely with other people and hence will transform to being a member of that society.

People who are less or unsocialized, self-interested shows a lack of interest in knowing the social and cultural environment of others and hence would not be successful in socializing.

Socialization process helps to change the status of an individual from “I” to “me”. The “me” part understands the values, expectations, and rules of a society and hence interacts socially to become a member of society.

Answer:

Virtually all non-tasters (dd) cannot taste PTC, while homozygous tasters (TT) occasionally report an inability or weak ability to taste the chemical. The heterozygous genotype (Tt) has the "leakiest" phenotype as reduced or absent tasting ability is relatively common. This is formally called a heterozygous effect.

Explanation:

The genotype for people who cannot taste PTC is 'tt', meaning they have two recessive alleles for the TAS2R38 gene. This genetic makeup results in a lack of sensitivity to the bitter chemical PTC, distinguishing 'non-tasters' from 'tasters' and 'supertasters' who may possess at least one 'T' allele.

The genotype for people who cannot taste PTC is 'tt'. This means they have two copies of the recessive allele. PTC, or phenylthiocarbamide, taste sensitivity is an inherited trait determined by the presence of a specific gene, TAS2R38. Individuals who can taste PTC may have the genotypes 'TT' (homozygous dominant) or 'Tt' (heterozygous) whereas only the 'tt' genotype leads to an inability to taste PTC. The TAS2R38 gene contains single nucleotide polymorphisms (SNPs) that influence the structure of a taste receptor protein on the tongue, affecting the ability to detect the bitter taste of PTC.

Supertasters have an enhanced sense of taste, often because of a higher number of taste buds or sensitivity to certain compounds, and may have a genotype leading to a heightened response to PTC and similar compounds. The genetic variation in the TAS2R38 gene is a prime example of how taste preferences and sensitivities can be affected by our genetic makeup.

There are chances of 75% solid green coloured rind in watermelons.

Explanation:

Dominant trait = Solid Green rind G

Recessive trait= stripes g

Given that both the parent plants are heterozygous so their alleles will be

Gg Gg

From the Punnet square

          G        g

G      GG     Gg

g       Gg     gg

The phenotype ratio is 3:1  ( 3 watermelons with the green colour rind and 1 with striped rind observed)

Genotype ratio is 1:2:1

From the observation, we can say that 75% of the watermelons will have solid green colour rind because G is dominant over g.

The probability that offspring of two heterozygous watermelon plants for rind color will have solid green rinds is 3/4 or 75%, following a 3:1 ratio characteristic of a monohybrid cross with a dominant and recessive trait.

The question concerns a cross between two heterozygous watermelon plants for the rind color trait, where solid green rind color (G) is dominant over stripes (g). To determine the odds that the offspring will have solid green rinds, we must consider the possible genotypes that the offspring could inherit. With both parents being heterozyous (Gg), the potential genotypes of the offspring, according to the Punnett square, include GG, Gg, and gg. When these are combined, there is a 3:1 ratio favoring the dominant phenotype. The proportion of offspring with the solid green phenotype (either GG or Gg) is therefore 3/4 or 75%, meaning there's a 75% chance that an offspring will have solid green rinds. This calculation follows the monohybrid cross pattern, where the probability of an offspring displaying a dominant trait is the sum of the probabilities of being homozygous dominant (GG) or heterozygous (Gg).

Answer:

The correct option is A)  It is not written by an authority

Explanation:

In the English language, credibility can be described as the quality of an object to be reliable or trusted.

A piece of written work which does not mention the name of the writer may be considered to be not reliable and trustworthy. Hence, the correct option is A.

Other options, like option D, is not correct because a peer- reviewed journal carries authentic information as the work has been rechecked by different people who have expertise on the subject.

Answer:

B. The Red Squirrel population would increase.

Explanation:

There isn’t another animal the would eat the Red Squirrels, therefore causing the Red Squirrels to over populate.

Answer:

B. The red squirrel population would increase.

Explanation:

As we can see on the table, red foxes are secondary consumers that's feed on primary consumers, if the red foxes were removed from the ecosystem the population of primary consumers that are eaten by red foxes (such as red squirrel and snowshoe hare) would increase.