Sort the variables of these three studies based on whether they are independent or dependent variables.

Study 1: the effect of light on flowering patterns of plants
Study 2: the effect of penicillin on the growth of E. coli
Study 3: the effect of progesterone on the ovulation of rats

A representation of a cell in an isotonic solution. The cell's size stays the same since it is placed in an isotonic solution

Answer:

c) Malaria, African Sleeping sickness, and intestinal diseases.

Explanation:

Malaria, African Sleeping sickness, and intestinal diseases are the examples of infections caused by protists. Therefore, the option (c) is the correct answer.

The factors that increase a community's diversity are the age of the community; Energy input and Human activity.

There are many ways to describe diversity. Assuming that diversity is defined broadly, as opposed to, say, genetic diversity, there are many things that can influence the diversity of a group.

The diversity may be impacted by the landscape's complexity, the community's age, and its surroundings.

Diversity will be impacted by the diversity of the habitat or landscape itself. There isn't much possibility for variety if the habitat is continually boreal forest, with the same species distribution and composition throughout.

There is potential for more ecological niches in an environment with a variety of habitat types. Different species may inhabit various niches and tailor their adaptations to them.

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Answer: d

Explanation:

Answer: It is D and E



Explanation:

Explanation:

Here the underlined parts are STOP CODONS NO INTRONS WERE FOUND IN THE GIVEN SEQUENCE

Intron: AUC, UUU, CUA, CGC, UUA, AGA, AGG, CGU, AUG, AGG, AUG, UGG

Exon: GUU AUG AGU CGU UGG CAU UAA UCU UUC CUU AUG AUU GUC GCU GAU CGU UAG, UCG UCC AUG CGU GUG GCU GAC UUC CAA UGA CCA AAU CUU CGG UGG CGG AGU, UAA C AUU AUA AGA AUG ACC AAA AGG CGU CGA UGA GGA UGU GGC AAU UUA ACA UC

Parts of a gene are known as introns and exons in molecular biology. While introns are the non-coding portions that break up coding sequences, exons are the coding areas of a gene that carry the information required to construct a protein.

Introns are not expressed, whereas exons are the regions of a gene that are. Introns are cut out and exons are spliced together to create the final messenger RNA (mRNA) which will be translated into a protein after a gene has been transcribed into mRNA.

Therefore, Intron: AUC, UUU, CUA, CGC, UUA, AGA, AGG, CGU, AUG, AGG, AUG, UGG

Exon: GUU AUG AGU CGU UGG CAU UAA UCU UUC CUU AUG AUU GUC GCU GAU CGU UAG, UCG UCC AUG CGU GUG GCU GAC UUC CAA UGA CCA AAU CUU CGG UGG CGG AGU, UAA C AUU AUA AGA AUG ACC AAA AGG CGU CGA UGA GGA UGU GGC AAU UUA ACA UC

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Answer:

C. Sea Floor Spreading

Explanation:

Primary succession involves the gradual establishment of communities of different species in mostly lifeless areas.

The correct answer choice from above is option b.

Primary succession can simply be defined as that association of living things whereby these organisms are the first that first colonizes a barren habitat. In order words, it simply refers to the ecological association of plants and animals such that they are are ones that inhabit the region first.

In conclusion, we can now confirm from the explanation above that this primary succession is a succession which starts from scratch.

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With the equation of cellular respiration C₆H₁₂O₆ + 6O₂ → 6CO₂+ 6H₂O, gaseous exchange takes place, glucose reacts with oxygen forming Adenosine Triphosphate used by cells.

About 21% of oxygen and 0.4% of carbon dioxide of air is inhaled while the air we breathe out contains 16.4% of oxygen and 4.4% of carbon dioxide because cells use oxygen inhaled to release energy and carbon dioxide as byproduct.

Cellular respiration is how organisms convert fuel into energy and nutrients by combining oxygen with food molecules, sending the chemical energy for life sustaining activities while expelling carbon dioxide and water.

We inhale 21% of oxygen and 0.4% of carbon dioxide and exhale 16.4% of oxygen and 4.4% of carbon dioxide as by product during the process of cellular respiration.

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Answer:

This process occurs in three major stages, and one intermediate stage

glycolysis, oxidation of pyruvate, the Krebs cycle, and electron transport

Explanation:

hope this helps :)

Answer:

true

Explanation:

Answer: Heat energy can move from hot objects, liquids, gases, or spaces to cooler ones through three methods of transfer: conduction, convection, and radiation. Conduction is when heat passes through solid material to increase the temperature of whatever is beyond it.

Explanation:

Answer:

.

Explanation:

.

Answer:

A recessive trait will be observed in individuals that are homozygous for that trait.

Explanation:

Recessive traits will be observed only when the individuals are homozygous for that trait because for a recessive phenotype to appear in an indivual, there should be two recessive alleles (homozygous) otherwise dominant alleles in heterozygous will show dominant traits.

Biological transmission differs from mechanical transmission in that biological transmission option B: involves reproduction of a pathogen in an arthropod vector prior to transmission.

When a pathogen reproduces inside a biological vector that spreads it from one host to another, it is said to have undergone biological transmission. The primary carriers of biological transmission are arthropods.

The fundamental distinction between mechanical and biological transmission is that during mechanical transmission, agents are simply transferred from an infected host or contaminated substrate to a susceptible host. During biological transmission, the agent develops and/or propagates within the vector.

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Answer: alteration, and loss of habitats, pollution, and climate change.

Explanation: Theres 3 have a good day

Answer:

or the variety of all living things on our planet, has been declining at an alarming rate in recent years, mainly due to human activities, such as land use changes, pollution and climate change."

Explanation:

Answer:

Explanation:

Its C

Substance A is converted to substance B in a chemical reaction. it adjusts the ph of the reaction medium. this statement best describes the role of an enzyme during this reaction.

The H+ ion concentration's negative logarithm is known as pH. As a result, the meaning of pH is justified as the strength of hydrogen.

Although less apparent, the mathematical definition of pH is more beneficial overall. It claims that the pH is equal to the negative logarithmic value of the hydrogen ion (H+) concentration.

[H+] = -log pH

The pH of a water source depends on how acidic or alkaline it is. The activity of the hydrogen atoms determines the pH level since this activity is a reliable predictor of the acidity or alkalinity of the water. The pH scale has a range of 0 to 14, with 7.0 being neutral, as may be seen below. According to conventional wisdom, water with a low pH is acidic, whereas water with a high pH is basic (alkaline). The pH of pure water should be 7.0, however because of the impurities in the water, water supplies appears acidic.

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Answer:

C.

so that u don't have to replicate the experiment

Answer:

alligator and turtles sitting in a golf fairway

Cells that produce and secrete proteins have exceptionally high levels of rough endoplasmic reticulum (RER). The correct option to this question is D.

The endomembrane system, the plasma membrane, or proteins that will be secreted are the general purposes of the ER. All of the cell's membranes, including those of the endoplasmic reticulum, the Golgi apparatus, lysosomes, and vesicles, are included in the endomembrane system. Chloroplasts, peroxisomes, and mitochondria do not make up the endomembrane system.

To produce proteins in the cell, the rough endoplasmic reticulum is crucial. The cell would lack crucial proteins and other organelles would be unable to perform their duties if the rough ER were not functioning properly.

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More solar radiation would be reflected and scattered and More solar radiation would be absorbed by the clouds to the solar energy that reaches Earth's atmosphere.

A variety of methods, including solar power to produce electricity, solar thermal energy (including solar water heating), and solar architecture, are used to capture the radiant light and heat from the Sun.

It is a crucial source of renewable energy, and depending on how solar energy is captured, distributed, or transformed into solar power, its technologies can be roughly categorised as either passive solar or active solar.

Utilizing concentrated solar power, photovoltaic systems, and solar water heating are examples of active solar approaches. Passive solar strategies include aligning a structure with the Sun, choosing components with favourable thermal mass or light-dispersing qualities, and creating air-circulated areas.

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One issue that Alaska and the Artic are facing due to Climate Change is that ground ice becomes prone to thaw and collapse, which impact in life of people inhabiting these regions.

The term Climate Change makes reference to the sudden modification on the weather condition on the Earth over the past few decades, whose velocity of change is increasing and it is considered to be caused by human activities that generate global warming such as the burning of fossil fuels for industrial purposes.

In Alaska and the Artic, the melting ice is causing many problems associated with daily life in these regions The ground ice known is melting, and thereby structures on the surface may collapse due to this phenomenon.

Therefore, with this data, we can see that Climate Change causes the ice in the ground ice to thaw and thus collapse.

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Answer:

D, the reaction will release heat

Explanation:

exo means outser and thermic means heat

Mitosis helps sequoia tree become so big in the following way: Mitosis makes more cells to repair or replace dead or damaged cells, and it makes more cells to help the tree grow (option C).

Mitosis is the division of a cell nucleus in which the genome is copied and separated into two identical halves. It is normally followed by cell division.

Mitosis is opposed to meiosis, which is a cell division that produces gametes by the dividing a diploid cell into four haploid cells.

Mitosis is retains the number of chromosomes of the parent cell in the offsprings. Mitosis describes the duplication and distribution of chromosomes, the structures that carry the genetic information.

One of the major functions of mitosis is the repair or replacement of damaged cells, hence, by so doing creates more and more cells that makes a living organisms grow in size.

Therefore, the sequoia tree mentioned will become big because of the activities of the mitotic process.

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Side effects (i.e. allergic reactions, seizure).If you use the wrong antibiotic it can kill cell and cause other effects

In order to help doctors choose the best course of therapy for their patients, the Kirby-Bauer disc diffusion susceptibility test evaluates the sensitivity or resistance of pathogenic microbes to various antibiotic drugs. Medicines called antibiotics are used to treat bacterial infections. Antibiotics come in a variety of varieties. Only specific microbes are resistant to each kind. Finding the antibiotic that will be most effective at curing your infection can be determined with the aid of an antibiotic sensitivity test.

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Spartina is a plant that grows in salt marshes. It stores salt in its roots, making the root have a higher salt concentration than the water around them.  Water moves into the roots is most likely to occur in response to this concentration of salt in the roots.

The grass family taxon Spartina is typically seen in coastal salt marshes.  One or two species also occur on the western coast of North America and in freshwater habitats inland in the Americas. Its species, also known as cordgrass or cord-grass, are native to the coasts of the Atlantic Ocean in western and southern Europe, north-western and southern Africa, the Americas, and the islands of the southern Atlantic Ocean. The east coasts of North and South America, notably Florida, have the greatest species variety. Particularly in coastal salt marshes, they establish sizable, frequently dense colonies and expand swiftly. The species' height ranges from 0.3-2 m. Several of the species will create hybrids if they interbreed.

The propensity of Spartina species to hybridize is widely documented. Late in the eighteenth century, S. Southern England unintentionally received alterniflora from North America. It quickly bred with the only local species, S, here. maritima produced a sterile but robust hybrid known as Spartina X townsendii that had the ability to propagate vegetatively (as can all Spartina species). This hybrid eventually underwent chromosomal duplication, becoming fertile. Although Spartina townsendii var. anglica is the preferred name for this species, it is also referred to as S occasionally. anglica, which is now the predominant Spartina species in the majority of salt marshes in the United Kingdom.

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