In a homologous pair of chromosomes, one of the chromosomes came from mom and the other one came from dad. True or False

Answer: B

Explanation:

The Galapagos tortoises became separate species because they were on different islands. This is an example of geographic isolation, where the separation of physical barriers (in this case, different islands) prevents gene flow and leads to the divergence of populations and the eventual formation of new species

Answer:

It helps to growth population and maintains in continuity of life. And another advantage is that it helps in production of new type of organisms. It means offsprings are genetically difference than parents etc.

The data shows a shift in moth populations in response to pollution, with a decrease in the Typica (light) phenotype and an increase in the Carbonaria (dark) phenotype, indicating natural selection and adaptation to the polluted environment.

The given data represents the phenotypic and genotypic frequencies of moths in two different environments: a clean forest and a polluted forest. The moths are categorized into two phenotypes: Typica (light) and Carbonaria (dark). The initial frequencies indicate the starting proportions of each phenotype and allele.

In the clean forest, the Typica phenotype has a frequency of 0.49, while Carbonaria has a frequency of 0.51. This suggests that the two phenotypes were initially present in approximately equal proportions. However, in the polluted forest, the frequencies have significantly changed. The Typica phenotype has decreased to a frequency of 0.03, while Carbonaria has increased to 0.97.

The allele frequencies indicate the frequencies of the two alleles, "q" and "p." The initial allele frequency of "q" is 0.70, indicating that the "d" allele was more common initially. The G5 allele frequency of "q" is 0, suggesting that the "d" allele has become very rare in the polluted forest.

The genotype frequencies provide information about the combinations of alleles in the moths. The G5 genotype frequencies for Typica are 2pq (light, heterozygous) and p^2 (light, homozygous). For Carbonaria, the G5 genotype frequency is p^2 (dark, homozygous).

Overall, the data indicates a significant shift in the moth populations in response to the pollution in the forest. The Carbonaria phenotype, which is better camouflaged in the polluted environment, has become more prevalent, while the Typica phenotype has decreased. This is a classic example of natural selection and adaptation in response to changes in the environment.

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Answer:

Birds have a two part stomach, a glandular portion known as the proventriculus and a muscular portion known as the gizzard. Hydrochloric acid, mucus and a digestive enzyme, pepsin, are secreted by specialized cells in the proventriculus and starts the process of breaking down the structure of the food material.

Sweet, savory, and bitter tastes are activated by the binding of molecules to G protein-coupled receptors on the cell membranes of taste buds

The existence of the SGLT1 receptor (which transports sugars into cells only when sodium is present) on oral sweet taste cells may analyze why to taste sweet perceptions can be more when salt is present in food.

Salt is used as a general flavor improver because at the low application it will reduce bitterness, but increase sweetness, sour, and umami, Saltiness, and sourness are discerned when alkali metal or hydrogen ions enter the taste buds.

So we can conclude that which is advisable for sweet recipes. But at higher concentrations, it suppresses sweetness and enhances umami.

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Answer: 144

Explanation: Do I really need one?

Answer:

144

Explanation:

The function of the following in cellular respiration are energy storing, production of ADP, carry ATP molecules and acceptor.

NAD/NADH is an electron carrier that is used during cellular respiration to temporarily store energy.

Adenosine triphosphate (ATP) synthase is to produce ATP in the F1 sector from ADP and inorganic phosphate (Pi).

Electron transport is the process of transferring energy from electron carriers to more ATP molecules.

As the last electron acceptor in cellular respiration, oxygen plays this role.

A series of chemical processes known as cellular respiration convert glucose into ATP, which can then be used as energy for a variety of bodily reactions. Glycolysis, the citric acid cycle, and oxidative phosphorylation are the three main processes that take place during cellular respiration.

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Answer:

because visual images are held in sensory store/memory for up to 1/4 second

You can "see" your hand briefly because visual images are held in Sensory

Store/Memory for up to about 1/4 second.

When the sensory organ involving the eyes views an object briefly, the

information is usually passed to the brain which tells the type of object and

the action to take in response to the stimuli.

In this case, the visual image are usually held in the sensory

store/memory(brain) for few seconds which is why it is seen briefly even

after closing the eyes.

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You can use the data you have collected to calculate the average daily return for Eastern Mining Corp. over the last 120 days.

To calculate the average daily return, you will need to sum all of the daily returns and then divide by the total number of days in the sample (120 in this case). You can then use this average daily return to make predictions about the future performance of the company's stock.

The average daily return is a measure of the average gain or loss of a stock or other financial instrument over a period of time, usually expressed as a percentage. It is calculated by adding up all of the individual daily returns for a given period and then dividing by the total number of days in the period. The average daily return can be used to compare the performance of different stocks or financial instruments, or to assess the risk of investing in a particular stock or instrument.

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The backbones of DNA and RNA are made of alternating sugars and phosphate groups. So the correct option is A.

Nucleic acids are macromolecules that will be formed by a column of phosphates and sugars, this will give support to the molecules. This type of union is quite stable since they are difficult to break and not any enzyme can break it. Nucleotides are made up of nitrogenous bases, a sugar, and a phosphate group. The phosphate will be a high energy bond.

Nucleic acids will carry information that will be hereditary and they will have the information to be able to produce proteins. These macromolecules will be stored mainly in the nucleus of the cell.

Therefore, we can confirm that the correct option is A. made of alternating sugars and phosphate groups.

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Answer:

Soil and gases or particles in air

Explanation:

The solid part of Earth is called its geosphere. The geosphere includes the rocks, minerals, and landforms of the surface and interior of our planet.

The atmosphere of Earth is the layer of gases that surrounds it. This layer of gases is what we call the air.

Based on this information, we can conclude that all interactions between the atmosphere and geosphere include the soil and gases or particles in the air.

Answer:

They are produced from rocks (parent material) through the processes of weathering and natural erosion.

Explanation:

Water, wind, temperature change, gravity, chemical interaction, living organisms and pressure differences all help break down parent material.

Answer:

d. surface tension

Explanation:

i just got it right on acellus :)

Answer:

hello it might be invasive I think if not I am sorry

Answer:

Invasive.

Explanation:

Because tending to spread especially : tending to invade healthy tissue invasive cancer cells. 2 : involving entry into the living body (as by incision or by insertion of an instrument) invasive diagnostic techniques. Other Words from invasive.

Answer:

I think that answer might be B

Answer:

The answer to the first question is 0.8, and the second is 333

Explanation:

I took the test

1) The volume of the stock solution needed to make 2.0 L of 0.20M MgSO4 is 0.8 L.

2) Millimeters of 6.0M sodium hydroxide are required to prepare 2000mL of a 1.0M sodium hydroxide solution is 333.33 mL.

At normal temperature, sodium hydroxide is a white, crystalline substance. It has no smell and draws moisture from the atmosphere. It releases heat when combined with water, which is sufficient for the ignition of flammable materials.

It is one of the necessary components for manufacturing soap. Another name for sodium hydroxide is lye. Chemical reactions occur when lye solution is combined with fats and oils. Saponification is the name of this reaction.

The household goods that contain sodium hydroxide are drain cleansers and oven cleaners. Sodium hydroxide transforms the oil and fat-filled obstructed pipes into soap.

It is utilised in the pharmaceutical sector to make a variety of medications, including the painkiller aspirin as well as medications that lower cholesterol and prevent blood clots. Paper is produced using it in the paper industry.

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Blue-green algae are photosynthetic prokaryotes, while fungi are eukaryotes that obtain nutrition through absorption.

Blue-green algae and fungi are both organisms, but they belong to different domains and have distinct characteristics. Blue-green algae, also known as cyanobacteria, are classified under the domain Bacteria, while fungi belong to the domain Eukarya.

Blue-green algae are prokaryotic organisms, lacking a true nucleus and membrane-bound organelles. They obtain energy through photosynthesis and are capable of converting sunlight into chemical energy. They typically inhabit aquatic environments, such as lakes, ponds, and oceans, and some species can fix atmospheric nitrogen.

On the other hand, fungi are eukaryotic organisms with a distinct nucleus and membrane-bound organelles. They obtain nutrition by absorbing organic matter from their surroundings. Fungi play crucial roles in decomposition and nutrient cycling in ecosystems. They can be found in various habitats, including soil, plants, and even as symbiotic partners with other organisms, such as in mycorrhizal associations.

In summary, the primary differences between blue-green algae and fungi lie in their cellular structure, mode of nutrition, and classification. While blue-green algae are photosynthetic prokaryotes, fungi are eukaryotes that obtain nutrition through absorption. Understanding these distinctions helps in appreciating the diversity and ecological significance of these two groups of organisms.

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Answer:

The correct answer is - ovaries.

Explanation:

Ovaries are organ which plays a distinct role in two different organ system and both roles of the organ are essential. Ovaries not only produces egg in the reproductive system but also produces the hormone which is part of the endocrine system.

The endocrine system is a system of chemical messengers which depends on the feedback loop to release the chemical messenger or hormone directly to the circulatory system, ovaries are part of this system as it produces a hormone.

Answer: The correct option is D.

The concentration of calcium in the myofibril must decrease.

Explanation:

This is because calcium makes myosin, actin and ATP to interact which actually lead to the contraction of muscle fibre.

Relaxation of muscle fibres occurs when the nerves stop stimulating. The result in the pumping of Calcium into the sarcoplasmic reticulum which then cause a break in the link that connect actin and myosin. Actin and myosin return to their unbound state leading to the relaxation of the muscle .

Answer:

A petition is a request to do something, most commonly addressed to a government official.

Explanation:

A petition is a formal request presented to a court, usually in the kind of an appeal. A person, a group of people, or an organization can submit a petition.

A petition is a written letter that is sent to a specific person, official, national parliament, or court to express a complaint or ask for a favor. Moreover, petitions are used to gather signatures so that a candidate can be added to a ballot or so that the electorate can vote on a particular subject.

A petition is a demand for action that is typically made to a public figure or official of the government. Supplication is a type of prayer in which people make petitions to a deity. A petition, in the common meaning, is a letter addressed to an official that has the signatures of several people. A petition is submitted in court by a petitioner against a respondent.

Thus, a petition is a formal request presented to a court, usually in the kind of an appeal. A person, a group of people, or an organization can submit a petition.

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Answer:

Polar Bear.

Explanation:

The antelope population has a negative population growth rate. So, the birth rate + immigration rate of the population will be less than the death rate and emigration rate. Thus, the correct option is C.

Population growth rate is the increase or decrease in the number of individuals in a population or a dispersed group. Population growth depends upon several factors which include:

1. Birth rate: It is the total number of new births in a population. It increases the population growth.

2. Death rate: It is the total number of deaths in a population. It decreases the population growth.

3. Immigration: It is the entry of new individuals through migration into a population. It increases the population growth.

4. Emigration: It is the removal or migration of individuals from a population. It decreases the population growth.

Thus, a population with negative population growth rate will have birth rate and immigration less than the death rate and emigration rate.

Therefore, the correct option is C.

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All of the above.

Sedimentary elements are made up of broken down particles from many different substances. Sedimentary rock forms when multiple particles lump together to make a larger particle until it becomes highly visible and large. For example,

The Mississippi River carries sediment from upstream (typically soil from the dryer parts of the USA) and that sediment gathers into levee's which help protect the coast of Louisiana and the Gulf of Mexico.

Hope this helps and have a nice day.

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When true yellow-seeded breeding pea plants  are crossed with green-seeded plants, all the offspring will produce yellow seeds. When true round-seeded breeding plants  are crossed with furrow-seeded plants, all progeny will produce round seed.

True reproductive organisms are genetically identical and have identical alleles for certain traits. The alleles of this type of organism are homozygous.

When true breeding pea plant with yellow cotyledons and round seeds is crossed to a plant with green cotyledons and wrinkled seeds the parent plants would be genotyped YySs and Yyss seeds to produce wrinkled seeds in the progeny, a round plant would be heterozygous. The number of progeny with green round seeds would be 2/16 or 1/8.

When Mendel crossed true-breeding pea plants with purple flowers with true-breeding pea plants with white flowers all of the F1 offspring has purple flowers because the result was a hybrid offspring. Rather than being a mix of the two colors, the offspring was purple flowered. The resulting hybrids in the F1 generation all had violet flowers.

The yellow seed allele is dominant and the green seed allele is recessive. In true breeding plants where one parent had yellow seeds and the other green seeds, all F1 hybrid offspring had yellow seeds.

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Answer:

I believe its E

Explanation:

Atomic mass = atomic number + amount of neutrons

Atomic number = amount of protons

Therefore Atomic mass is the amount of protons plus the amount of neutrons so your answer would be E.

Answer:

A) The gene flow between hatchery-reared and wild populations is leading to a decline in fitness of wild populations.

Explanation:

we have relative fitness at its greatest in trouts whose parents are wild x wild. crossing the wild with hatchery reared causes a decrease in the fitness of the troutgene flow is the exchange of genes between two different breeds. the wild is a greatly diverse breed and it is highly adaptive. while the hatchery reared is less adaptive.when these two breed less fit alleles will then be transferred to the wild

therefore option a answers the question