Help please this is biology unit 1 test and i’m going to be posting the questions i need help with soo

Answer:

i believe its d

Explanation:

Answer:

symbiosis.

Explanation:

The term that you are referring to is symbiosis. (a symbiotic relationship)

Symbiosis is a proximate and often long-term interaction between two or more different biological species.

The frequency of the dominant blue allele, represented by p, is D. 0.47. This means that 47% of the creatures in the population have the blue eye colour allele.

The equation p + 2pq + q² = 1 represents the Hardy-Weinberg equilibrium equation, which describes the frequencies of alleles in a population.

In this case, p represents the frequency of the dominant blue allele, q represents the frequency of the recessive green allele, and p + q = 1 because these are the only two alleles in the population.

Given that 28 out of 100 organisms are green (q² = 28/100), we can find the value of q. Taking the square root of q², we get q = √(28/100) = 0.53.

Since p + q = 1, we can substitute the value of q to find p. Therefore, p = 1 - q = 1 - 0.53 = 0.47.

So, the value of p, representing the frequency of the dominant blue allele, is 0.47. This indicates that 47% of the organisms in the population have the blue allele for eye color. Therefore, Option D is correct.

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Answer:

a

Explanation:

Answer:

Explanation:

Yes correct Nitrogen bases!

Answer: true

Explanation:

Once fertilized, the egg is called a zygote. Fertilization is not complete, however, until the two haploid nuclei (called pronuclei) have come together and combined their chromosomes into a single diploid nucleus.

Red blood cell (or erythrocyte): carries oxygen, bound to hemoglobin, to deliver to the tissues. This is an anucleate cell type.

Platelet (or thrombocyte): important in the process of blood clotting. Generated from the megakaryocyte.

Neutrophil: short-lived, phagocytic cell that is quick to respond to pathogen infection. Most abundant of the leukocytes.

Lymphocyte: used in the immune response, as either B- or T-cells.

Monocyte: wandering blood cell. Largest of the leukocytes.

Eosinophil: phagocytic cell that engulfs antibody-covered pathogens; an acidic granulocyte with bi-lobed nucleus.

Basophil: releases histamine and heparin. Least abundant leukocyte.

A heterozygous individual has two different alleles for a given trait or character, therefore can produce 2n gametes.

A person who possesses two distinct alleles of a gene is said to be heterozygous for that gene.

Each of the two alleles that this person possesses for that gene will be distributed randomly among the gametes that are produced when this person reproduces. In other words, one allele will be present in half of the person's gametes, while the other allele will be present in the other half.

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Complete question;

How many different gametes are produced by an individual who is heterozygous?

Assuming a single diallelic gene coding for each trait, expressing complete dominance, and with no interaction between genes, the most probable genotypes of the parents are BbRr. Both parents must be dihybrids.

In this example, two features are considered,

After the cross, the results of the progeny were as follows,

Total number of pigs among the progeny = 19 + 6 + 7 + 1 = 34 pigs.

We will assume that of these traits are coded by a single diallelic gene each, that express complete dominance, and do not interact with each other.  

If we perform a cross considering this two genes, we will expect to get 16 possible combinations of the parental gametes.  

So, the 34 pigs from the progeny are included in these 16 possible genotypes.

34 pigs ---------------------- 16 combinations

19 black and rough ----- X = (19 x 16) / 34 = 8.94 ≅ 9

6 black and smooth ----- X = (6 x 16) / 34 = 2.82 ≅ 3

7 white and rough ------- X = (7 x 16) / 34 = 3.2 ≅ 3

2 white and smooth ----- X = (2  x 16) / 34 = 0.94 ≅ 1

So, by looking at the phenotypic proportions of the progeny, we can suggest the possible parental genotypes.

Phenotypic proportion

These proportions are the result of a cross between two dihybrid individuals, meaning that both parents are heter0zyg0us for both traits.

Also, according to these numbers, we can tell that the dominant traits are black and rough over white and smooth, respectively.

So let us make this cross assuming two dihybrid parents,

Parentals) BbRr    x    BbRr

Gametes) BR, Br, bR, br

                 BR, Br, bR, br

Punnett square)         BR          Br        bR         br

                       BR     BBRR    BBRr    BbRR    BbRr

                       Br      BBRr     BBrr      BbRr     Bbrr

                       bR      BbRR    BbRr    bbRR     bbRr

                       br       BbRr     Bbrr     bbRr       bbrr

F1) Genotypes

Genotypic ratio ⇒ 1:2:1:2:4:2:1:2:1

     Phenotypes

Phenotypic ratio ⇒ 9:3:3:1

In conclusion, The most probable genotypes of the parents are BbRr, being dihybrid both of them.

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Most articles pass right through the atom, this means that most of the atom is an empty space.

An atom is described as a particle that consists of a nucleus of protons and neutrons surrounded by a cloud of electrons.

Protons and neutrons make up the core nucleus of an atom, which is encircled by an electron cloud. In relation to the size of the atom as a whole, the nucleus is exceedingly small.

As a result, the electrons surrounding the nucleus are the primary target of interactions when particles or even light pass through an atom. The majority of the atom's remaining space, which includes the nucleus, is vacant.

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It is true that a lot of diseases are caused by genetic error that gets passed down in reproductive cells.

The correct option is True

An illness characterized by one or more abnormalities in the genome is referred to as a genetic disease. It may result from chromosomal abnormalities, DNA mutations in one or more genes, or both.

The responsible mutation may arise spontaneously before embryonic development, or it may be passed down through autosomal recessive inheritance from two parents who carry the defective gene, or from a parent who already has the disease (autosomal dominant inheritance).

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Answer:

b. are derived from opium

Explanation:

Morphine, heroin, and methadone are the name of drugs which are derived from the same source called opium poppy.

Morphine, heroin, and methadone are the class of drugs known as opioids or narcotic are used in medical treatment which interacts with brain to reduce pain perception and methadone is also used to reduces withdrawal symptoms due to addiction of heroin and morphine.

Hence, the correct answer is b.

Varicella Zoster is an infectious viral disease causing chickenpox in children and shingles in grown-ups. Inoculation plays a crucial part in avoidance and lessening complications.

Women and noblemen,

Nowadays, I would like to examine a vital and predominant viral disease known as Varicella Zoster. Varicella Zoster, commonly alluded to as chickenpox, is caused by a varicella-zoster infection. It fundamentally influences children, but can too affect grown-ups who have not been already contaminated.

Varicella Zoster presents as a profoundly infectious sickness characterized by a particular hasty, fever, and common disquietude. The infection spreads through coordinated contact or respiratory beads, making it effortlessly transmissible inside families and communities.

Whereas chickenpox is for the most part a gentle ailment in children, it can lead to more serious complications in grown-ups, pregnant ladies, and people with debilitated resistant frameworks. These complications incorporate pneumonia, bacterial contaminations, and in uncommon cases, neurological complications such as encephalitis.

Luckily, the improvement of a profoundly successful antibody has essentially diminished the frequency of Varicella Zoster around the world. Immunization not as it were secures people from the distress and potential complications of chickenpox, but too makes a difference anticipate the infection from spreading inside the community.

In any case, Varicella Zoster doesn't halt at chickenpox. Once the introductory contamination settles, the infection remains torpid inside the body and can reactivate a long time afterward, causing a condition known as herpes zoster, or more commonly, shingles.

Shingles are characterized by a difficult hasty that ordinarily happens in a single dermatome, regularly along the middle or confront. The reactivated infection can cause critical pain and inconvenience, enduring for weeks or indeed months. Moreover, complications such as postherpetic neuralgia, a persistent torment disorder, can happen, especially in more seasoned people.

To combat the chance of shingles, an isolated antibody called the shingles antibody or herpes zoster immunization has been created. This antibody not as it were makes a difference anticipate shingles but moreover diminishes the chance of postherpetic neuralgia.

In conclusion, Varicella Zoster, enveloping both chickenpox and shingles, could be a viral contamination that has critical suggestions for open well-being. We have made significant progress in reducing the burden of this disease through extensive vaccination efforts.

In any case, ongoing efforts to prevent Varicella zoster from returning to our communities and to protect powerless populations require prompt attention and vaccination.

Much obliged to you for your thought. Let's collaborate to ensure a better future for everyone.

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The energy is related to the change of state represented by the model by: D. Atoms lose energy as a gas changes to a liquid.

A model of the transition from a gas to a liquid is shown in the accompanying image. It demonstrates how atoms or molecules change from being widely scattered as in a gas to being concentrated as in a liquid.

The atoms in this process move from a higher-energy state  to a lower-energy state releasing or losing energy in the process. The most common kind of energy loss is heat.

Therefore the correct option is d.

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If this experiment was a protein X western blot (using an anti-X antibody) instead of a hybridization experiment then:-

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Answer: Kane Tanaka HTH

Explanation:

Answer:

Kane Tanaka

Explanation:

The oldest person ever to have lived is Jeanne Calment (France), who lived to be 122 years and 164 days, and the oldest man ever is Jiroemon Kimura (Japan), who was born on 19 April 1897 and passed away aged at the age of 116 years and 54 days on 12 June 2013. The oldest person living is Kane Tanaka

North Valley High should select blue because more of the sampled students picked the color blue compared to the other colors in the survey. South Hills High should select silver because more of the sampled students picked the color silver than other colors.

This is the correct inference based on the given data. The survey results show that blue was the most popular color among the North Valley High students, and silver was the most popular color among the South Hills High students. Therefore, it would make sense for each high school to choose the color that was most popular among their respective student populations.

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maybe cause you asking this on brainly

Answer:

Explanation:

The materials that are useful are bamboo, plastic, steel, concrete, fabric , textiles, stones, brick, repurposed wood e.t.c.

Materials become useful, when those that uses it use it right and to achieve a specific purposes base on the properties the materials poseses.

The materials that are harmful include asbestos, Mercury containing devices, lead based paints, household hazardous waste, light system, mold, refrigerant containing system.

Materials become harmful when they contain substances or properties that is dangerous or can harm human beings and cause damage to cells.

Answer:

Explanation:

The distance between the particles increases greatly, and the attractive forces between the particles decreases. an the molecules increase

Using my personal life experience, I can identify four learned habits that are influenced by the environment: parasites, noise, light, sound, and food pollution.

Environmental scientists employ the natural sciences they have learned to save the environment. Natural science expertise is used by environmental specialists to safeguard both the environment and public health. In order to reduce waste, they might collaborate with industry, advise legislators, or clean up contaminated places.

The study on organisms and how they interact with their environment is called ecology.. The interaction between living organisms and their environments is studied by ecologists.

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The genotype of the F1 offspring is YyTt, and the phenotype is yellow and tall. The probability of each phenotype in the F1 offspring is as follows yellow and tall is 1/2 or 50%, green and short is 1/2 or 50%.

Genotype refers to the genetic makeup or combination of alleles present in an organism, while phenotype refers to the observable traits or characteristics expressed by an organism. Genotype represents the genes an organism carries, while phenotype represents the physical or observable features resulting from the interaction between genotype and the environment.

When a heterozygous ail yellow plant (genotype Yy) is crossed with a homozygous short green plant (genotype tt), the F1 offspring will have the genotype YyTt and the phenotype of yellow and tall. The probability of this phenotype occurring in the F1 generation is 50%. Additionally, there is a 50% probability of the F1 offspring having the phenotype of green and short.

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Answer: Respiration is the biochemical process in which the cells of an organism obtain energy by combining oxygen and glucose, resulting in the release of carbon dioxide, water, and ATP (the currency of energy in cells).

Explanation:

Answer:

Many factors influence the size of a population. Food, water, shelter, predation, and density are all things that can allow a population to grow or cause it to decline.

Hope it helped! :)

Answer:

The correct answer is -  staphylococcus aureus

Explanation:

A broad-spectrum antibiotic is an antibiotic used to treat the infection or kill the two major groups of the bacteria; gram-positive and gram-negative bacteria.

Staphylococcus aureus is a bacteria that is more resistant to commonly prescribed antibiotics by doctors. These bacteria are more adaptive so as the given information it is possible that George's wound is infected with a resistant strain of Staphylococcus aureus such as methicillin-resistant Staphylococcus aureus (MRSA) strains.

The events described involve both mechanical and chemical weathering processes, highlighting the complex nature of how weathering affects geological structures.

The events can be identified as the result of mechanical weathering or chemical weathering as follows:

The minerals in a marble statue react with water to form acids and pores in the structure - This is an example of chemical weathering. The water reacts chemically with the minerals in the marble, causing them to dissolve and form acids. These acids further react with the marble, leading to the formation of pores and overall degradation of the statue's structure.

A piece of rock crumbles after being constantly thrashed by strong waves - This is an example of mechanical weathering. The constant thrashing of strong waves exerts physical force on the rock, causing it to break apart or crumble. This type of weathering occurs due to mechanical forces like abrasion, pressure, or impact that physically break down the rock into smaller pieces.

Industrial runoff forms cracks in a rocky structure in its path - This is a combination of chemical and mechanical weathering. The industrial runoff may contain acidic or corrosive substances that chemically react with the minerals in the rock, leading to their dissolution or weakening. The cracks in the rocky structure may also be a result of the mechanical force exerted by the flowing runoff, causing physical fractures in the rock.

The rocks in a region are streaked orange after being exposed to repeated rains - This is an example of chemical weathering. The repeated rains introduce water into the rocks, which may contain dissolved iron compounds. Over time, these iron compounds oxidize in the presence of water and oxygen, leading to the formation of orange-colored iron oxide minerals, such as rust. The streaking of rocks with orange indicates the chemical transformation of the minerals due to the weathering process.

In summary, the events described involve both mechanical and chemical weathering processes, highlighting the complex nature of how weathering affects geological structures. Mechanical weathering involves physical forces breaking down rocks, while chemical weathering involves chemical reactions leading to the alteration or dissolution of minerals.

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Tiger sharks eat seal populations, thereby both species are related by a predator/prey ecological relationship.

In conclusion, tiger sharks eat seal populations, thereby both species are related by a predator/prey ecological relationship.

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Answer:

Tiger sharks eat seal populations, thereby both species are related by a predator/prey ecological relationship.

Explanation:

Answer:

1. Matter

2. Biosphere

Explanation: