A student hypothesizes that temperature affects the acidity of water. Which of the following lab tools would be most useful to her investigation?
A.
microscope and thermometer
B.
thermometer and pH probe
C.
pH probe and hot plate
D.
hot plate and microscope

Answer:

Velocity

Explanation:

Given the change in positive (direction) over time we are given the velocity formula.

V = Change in direction/Change in time

Since we are given a direction we can rule out speed as well as direction in itself. We can also rule out acceleration because that is the change in Velocity divided by change in time.

Answer:

can u put the examples

Health care that relies choices about patient care on the most recent and trustworthy clinical studies is known as evidence-based medicine.

Health care that relies choices about patient care on the most recent and trustworthy clinical studies is known as evidence-based medicine. Evidence-based medicine aims to integrate the expertise of the practitioner, the patient's values, and the best research findings in order to support clinical care decisions. The phrase was first used to describe a method for enhancing physician evaluations of specific patients while simultaneously directing medical practice. In addition to these programs, CMS is also in charge of a number of other responsibilities, including those relating to administrative simplification required by the Clinical Laboratory Improvement Amendments (CLIA), the satisfaction of long-term care facility requirements through its survey and certification process, and the high standards for scientific laboratories.

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It seems that you have provided a series of statements about the genotypes of different individuals at two genetic loci, the b locus and the d locus. Each genetic locus can have two alleles, and the combination of alleles present in an individual's genotype determines their physical and behavioral traits.

Genotype refers to the genetic makeup of an individual, specifically the set of alleles that an individual carries for a particular trait or traits. An allele is one of two or more alternative forms of a gene that arise by mutation and are found at the same location on a chromosome. Each individual has two copies of each gene, one inherited from each parent, and thus can have two copies of the same allele or two different alleles.

Here,

Based on the information provided, we can make some observations: At the b locus, both parents were bb. This means that both parents had two copies of the recessive b allele, and all of their offspring will inherit one b allele from each parent, resulting in a genotype of bb.

At the d locus, one parent was dd and the other was dd. This means that both parents had two copies of the recessive d allele, and all of their offspring will inherit one d allele from each parent, resulting in a genotype of dd.

At the b locus, one parent was bb and the other parent could have had any genotype (bb, Bb, or BB). This means that one parent had two copies of the recessive b allele (bb), and the other parent could have had two copies of the recessive b allele (bb), one copy of the recessive b allele and one copy of the dominant B allele (Bb), or two copies of the dominant B allele (BB). The genotype of the offspring will depend on the genotype of the other parent.

At the d locus, both parents were dd. This means that both parents had two copies of the recessive d allele, and all of their offspring will inherit one d allele from each parent, resulting in a genotype of dd.

The other statements simply repeat some of the information provided earlier, so we can make the same observations as above.

It's worth noting that we can't make any predictions about the physical or behavioral traits of the individuals based solely on their genotypes at these two loci, since we don't know which genes are associated with which traits.

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- Pepsin enzyme

This is a stomach enzyme produced by the gastric chief cells. This enzyme is secreted in its inactive form, pepsinogen, and activated in the stomach lumen. Its function is to break down protein found in food into smaller peptides, i.e. the enzyme in charge of digesting proteins.

-Gastric mucus

This substance is secreted by the epithelial cells of the stomach, its function is to create a protective barrier around the stomach wall to prevent damage caused by the digestive enzymes and the hydrochloric acid.

-Gastrin hormones

Gastric is a peptide secreted by the G cells of the stomach, its function is to enhance stomach functions.

It stimulates the growth of the gastric mucosa barrier, promotes gastric mobility, and the secretion of hydrochloric acid.

-Hydrogen and chloride ions

These ions are secreted by the parietal cells and form hydrochloric acid in the stomach's lumen. Its function is to activate pepsinogen into pepsin, provide the acid pH needed for digestive processes, and break down the bonds linking amino acids.

The correct option is a) Pepsin enzyme.

Answer:

The two primary Stem Cells are Pluripotent (Embyotic) and Somatic (Adult).

Explanation:

Pluripotent stem cells can turn into any type of cell in an adult body.

Somatic stem cells can only differentiate into specific cells in an organ or tissue.

Answer: a 12% increase in photosynthetic rate, and 14 petagrams of additional carbon being removed.

Explanation:

Taken directly from the article. (paragraph 3)

Explanation:

The illustration below shows translation in progress. The orange structure represents a ribosome and the dark grey ones labelled A and

B represent 2 tRNA. Fill in the blanks in the next sentence and answer the short essay question that follows.

A

5'-AGGGACUAUGAACAUUUACCAACUACGGUGGCGUUAGAC

As written in the question the level of carbon dioxide in sea water increases which is wrong because the level of carbon dioxide in sea water is not increasing directly it is increasing because the amount of carbon dioxide in the atmosphere increased.

Carbon dioxide is defined as the chemical compound that is made up of molecules each containing a carbon atom covalently linked to two oxygen atoms found in the gaseous state at room temperature. In air, carbon dioxide is transparent to visible light but absorbs infrared radiation, acting as a greenhouse gas.

In the virtual lab, we will have to blow the \(CO_2\) we exhale into sea water using a straw which will create bubbles of \(CO_2\)  that will mix with the sea water. A pH meter will then be used to measure the acidity of the sea water.

So, as written in the question the level of carbon dioxide in sea water increases which is wrong because the level of carbon dioxide in sea water is not increasing directly it is increasing because the amount of carbon dioxide in the atmosphere increased.

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According to the research, the correct option is true. SEM creates an image by detecting reflected or knocked-off electrons providing information on the sample's surface.

It is an instrument that allows the observation and characterization of materials from the creation of an image is obtained from the signals emitted by the sample and is formed as the electron beam.

This technique is used to analyze the morphology of solid materials of all kinds, the study of cell cultures, provided through three-dimensional images that correspond to secondary electrons or backscattered electrons.

Therefore, we can conclude that according to the research, the correct option is true. SEM creates an image by detecting reflected or knocked-off electrons providing information on the sample's surface.

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A waxy cuticle that covers the outer surface of the plant and prevents drying out through evaporation. The cuticle also partially protects against radiation damage from UV light.

Stomata (singular: stoma) are present in all land plant lineages except liverworts (similar to -but not the same as! – mosses). Stomata are pores or holes which allow for exchange of gasses (such as oxygen and carbon dioxide) between the plant cells and the environment. Stomata or similar structures are necessary in land plants because the waxy cuticle blocks free-flow of gasses.

Roots (or root-like structures) anchor plants to the soil and—in plants with true roots— serve as conduits for water absorption. All land plants except Bryophytes (mosses, liverworts, and hornworts) have true roots. Bryophytes have root-like structures called rhizoids that anchor them to their substrate but are not involved in water absorption (which is less important for Bryophytes because they can only survive in very moist environments).

Mutualistic association with mycorrhizal fungi, which are tightly associated with plant roots. Mychorrhizal fungi are associated with approximately 80% of all land plant species and provide additional surface area for absorption of both water and nutrients from the soil. The fungi share these resources with the plant roots, and—in exchange— the plant shares photosynthetic sugar products with the fungi.

The alternation of generations life cycle, which includes both a multicellular haploid stage and a multicellular diploid stage. Why is this an adaptation to life on land? It isn’t, in and of itself—in fact, it also occurs in *some* green algae, which are aquatic but share a common ancestor with all land plants. But specific adaptations to the alternation of generations life cycle have occurred in different lineages of plants, and those adaptations DO function as adaptations to life on land. We’ll consider these adaptations later in this reading.

These are from my text book, from last year.

Answer:

It has cuticle, a waxy, airtight seal that covers plants and allows them to retain water.

It has seeds, plant embryos without a protective cover on the scales of a cone which allows them to disperse into new locations.

It has pollen, but it is not produced in flowers, which allows it to reproduce without the need of water.

Explanation:

The joint is a  ball and socket joint and the labeled diagram is attached.

A ball and socket joint is a type of synovial joint in which the rounded head of one bone fits into the concave socket of another bone, allowing for a wide range of movement in all directions. This joint is also known as a spheroidal joint or enarthrosis.

The structure of a ball and socket joint allows for movements such as rotation, flexion, extension, adduction, and abduction.

Examples of ball and socket joints in the human body include the hip joint and the shoulder joint.

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Answer:

Explanation:

Geological substratum refers to the solid rock or layer of Earth's crust that lies beneath the soil, sediment, or other surface materials.

Hope it helps!!

Answer: It is no longer circulated throughout the body supplying oxygenated blood. The un-oxygenated blood turns blue which makes the body look “dusky”. Since it is no longer circulating, the blood pools in the lowest part of the body making these areas looked dark or bruised. (If the person was laying on their back, the blood would pool on the backside of the body)

Explanation:

When a person dies, the heart stops circulating blood and the lungs stop oxygenating the recirculated blood. The blood turns blue and pools in lowest place.

The scenario will be Son: 25% colorblind daughter: 25% colorblind son: 25% of carrier daughters with normal vision: 25% normal son

The condition is frequently inherited. Certain eye diseases and medications are also possible causes. Men are more affected than women.

Color blindness is characterized by the inability to distinguish between red and green shades.

A colorblind man's genotype is XcY, and a heterozygous carrier female's genotype is XcX. A cross between XcY and XcX would result in progeny with the following ratio=

Son: 25% colorblind daughter: 25% colorblind son: 25% of carrier daughters with normal vision: 25% normal son.

Thus, the couple is likely to have a son who is half normal and half affected. Similarly, the couple is likely to have 50% normal daughters and 50% colorblind daughters.

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Answer: Eggs form in the ovaries of a female while developing in the womb. Once Ovulation occurs, the egg releases from the ovary and goes down the fallopian tube into the uterus where it waits for sperm to come and fertilize it. If the egg is not fertilized, the uterus will shed with the egg which results in a period.

Explanation:

Genes are segments of DNA, which means that de DNA is composed of a series of genes. The chromosomes are composed of hundreds of thousands of genes. So, the DNA containing the information for the production and function of proteins is arranged in genes. Those genes are arranged in groups of hundreds of thousands, forming a chromosome. Therefore, A) is wrong because genes are related to chromosomes, being parts of it. C) is also wrong, because chromosomes contains genes, not the opposite. D) is incorrect as well because chromosomes often contain hundreds of thousands of genes, not only hundreds. In the end, the correct answer is B), because DNA is indeed made of genes which are located on chromosomes.

The assignment wants to know how you interpret the argument and how you develop an essay. For that reason, I can't write your essay, but I'll show you how to write it.

Below you can see an example of how your introduction might be written.

Terra Snider is an activist and co-creator of the movement formed by parents and teachers who seek a change in school schedules. Snider says that classes should start later, as they would optimize students' sleep and promote a series of positive effects.

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If a reaction in one direction releases energy, the reaction in the opposite direction ABSORB ENERGY (Option B)

In conclusion, if a reaction in releases energy, a reaction in opposite direction ABSORB ENERGY (Option B).

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Answer: Meiosis, each daughter cell should contain 23 chromosomes after

Explanation: Meiosis had 2 mitosis phases the first phase is about separating the chromosomes the second phase is splitting the chromosomes into chromatids and crossing over and then you end up with 4 daughter cells instead of your usual 2 that you would get in mitosis.  

In evolution, a common ancestor refers to a species or group of organisms from whom a group of organisms descends.

This term refers to a group that gave place to more groups, rather than individuals.

This means B) A species from which 2 or more recent species evolved, is the right answer

Answer:

Mols enzymes are proteins

The catalyse metabolic

According to the research, the correct answer is they are not stored in the body. One difference between water-soluble vitamins and fat-soluble vitamins is that the first are not stored in the body.

They are the organic substances that dissolve in water and that are present in food and that are necessary for the balance of vital functions.

In this sense, they are compounds that are not stored in our body and fat-soluble can be dissolved in fat, both are necessary, in small amounts, for the maintenance of normal biological activity.

Therefore, we can conclude that vitamins in a balanced way improve physiological functioning where fat-soluble ones can be dissolved in fats, and water-soluble ones in water.

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