What is density of a liquid with mass of 17.4 and a volume of 20 mL ? Would this liquid float or sink at room temperature based on its density and the known density of water?

Answer:

probe

Explanation:

hope this helps

have an awesome day - TJ

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Answer:

the prokaryotic virus does not have a nucleus (????) but I do think it has a membrane bound organelle. cant answer the rest. Hope this helps!!!

Explanation:

I did it in biology but the teacher was a bit of a bad teacher.

The KPC enzyme found in certain strains of Klebsiella confers resistance by breaking apart and inactivating an antibiotic.Klebsiella is a genus of Gram-negative bacteria that belongs to the family Enterobacteriaceae. Klebsiella is a facultative anaerobe that can cause infections in humans and animals. It can be found in water, soil, plants, and animals in nature. Klebsiella infections can be severe and can lead to pneumonia, sepsis, and other infections in humans.The KPC enzyme is an extended-spectrum beta-lactamase that is produced by some strains of Klebsiella pneumoniae.

The KPC enzyme confers resistance by breaking apart and inactivating beta-lactam antibiotics such as penicillins, cephalosporins, and carbapenems. KPC-producing Klebsiella pneumoniae is a significant public health concern because it is resistant to many antibiotics and can cause severe infections in humans.In conclusion, the KPC enzyme found in certain strains of Klebsiella confers resistance by breaking apart and inactivating an antibiotic.

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Answer:

Which of the following terms identifies a singular path for the flow

Answer:The important functions of the respiratory system are to provide oxygen to the body's cells, remove carbon dioxide from the body, and regulate the pH of the body's fluids. Additionally, the respiratory system helps to regulate body temperature, filter out airborne particles, and produce vocal sounds.

Explanation:

Answe:RNA는 핵 밖으로 이동합니r다.

Explanation:

Answer:

Atoms! An atom is the smallest unit of ordinary matter that forms a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are extremely small, typically around 100 picometers across. They are so small that accurately predicting their behavior using classical physics—as if they were tennis balls, for example—is not possible due to quantum effects.

Reservoirs which provide humans, animals, and plants with drinkable water are lakes, rivers, and groundwater.

A reservoir is an enlarged lake behind a dam. Such a dam may be either artificial, built to store fresh water or it may be a natural formation.

All basic functions of a reservoir can be made use of: storage, water conservation, flood control, water treatment, and aquatic environment. Reservoir systems can be either single- or multi-purpose systems.

A dam and reservoir may support navigation, recreation, flood control, irrigation, and water supply, with each multipurpose benefit providing significant social and economic impacts on a local, regional, and national level.

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Answer:

D

Explanation:

the point in the orbit of a planet, asteroid, or comet at which it is furthest from the sun.

lol it might be wrong mark be brainiest

OR I WILL FIND YOU

Vitamin A deficiency causes the epithelial cells of the skin to change shape and to secrete.

The skin, blood arteries, urinary system, and organ surfaces of your body are all sources of epithelial cells. They defend your body from viruses by acting as a barrier between the inside and outside of it.

It's usual to find a few epithelial cells in your urine. Infection, kidney disease, or any serious medical condition may be indicated by a high number. In order to examine our urine under a microscope, your doctor may prescribe a urine test or urinalysis.

In terms of size, shape, and appearance, epithelial cells vary. These epithelial cells are the most crucial. A renal problem may be indicated by an elevated number. Another name for them is renal cells.

Therefore, Vitamin A deficiency causes the epithelial cells of the skin to change shape and to secrete.

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Answer:

Carbon dioxide and water

Explanation:

Answer:

The extra parts of the immune response in vertebrates that are adaptations to intracellular pathogens are the production of antibodies, the activation of the complement system, and the production of interferon.

Correction of Nearsightedness (Myopia) using a Diverging Lens

Nearsightedness, also known as myopia, is a common refractive error of the eye that affects a person's ability to see distant objects clearly. In myopia, the basic optical problem lies in the excessive focusing power of the eye, causing the focal point to fall in front of the retina instead of directly on it. This results in distant objects appearing blurry or out of focus.

To correct nearsightedness, a diverging lens is used. A diverging lens is a concave lens that causes light rays to spread out or diverge. When placed in front of the nearsighted eye, the diverging lens helps to decrease the focusing power of the eye by further diverging the incoming light rays before they enter the eye. This adjustment allows the focal point to move backward, aligning it with the retina, and allowing distant objects to be seen more clearly.

To remember which type of lens corrects this defect, we can associate the terms "nearsighted" and "diverging." Since a diverging lens spreads out light rays, it helps to correct the focusing problem associated with nearsightedness. The idea of "diverging" aligns with the goal of moving the focal point backward, away from the eye, and closer to the retina.

In summary, nearsightedness (myopia) is corrected by using a diverging lens, which reduces the focusing power of the eye and allows the focal point to align with the retina. The association between "nearsighted" and "diverging" can help remember that a diverging lens is the appropriate choice for correcting this particular refractive error.

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Answer:Problem Set 4 Answers

1a. The template DNA strand, from which the mRNA is synthesized, is 5’ CAAACTACCCTGGGTTGCCAT 3’

(RNA synthesis proceeds in a 5’ à 3’ direction, so the template strand and the mRNA will be complementary to each other)

b. The coding DNA strand, which is complementary to the template strand, is 5’ ATGGCAACCCAGGGTAGTTTG 3’

c. The sequence of the mRNA is 5’ AUGGCAACCCAGGGUAGUUUG 3’

(the sequence of the mRNA is complementary to the template strand and identical to the coding strand with U substituted for T)

d. The third codon is 5’ ACC 3’.  Therefore, the corresponding anti-codon is 5’ GGU 3’

2. Below is a table for the genetic code:

T

C

A

G

T

TTT Phe (F)

TTC "

TTA Leu (L)

TTG "

TCT Ser (S)

TCC "

TCA "

TCG "

TAT Tyr (Y)

TAC "

TAA Stop

TAG Stop

TGT Cys (C)

TGC "

TGA Stop

TGG Trp (W)

C

CTT Leu (L)

CTC "

CTA "

CTG "

CCT Pro (P)

CCC "

CCA "

CCG "

CAT His (H)

CAC "

CAA Gln (Q)

CAG "

CGT Arg (R)

CGC "

CGA "

CGG "

A

ATT Ile (I)

ATC "

ATA "

ATG Met (M)

ACT Thr (T)

ACC "

ACA "

ACG "

AAT Asn (N)

AAC "

AAA Lys (K)

AAG "

AGT Ser (S)

AGC "

AGA Arg (R)

AGG "

G

GTT Val (V)

GTC "

GTA "

GTG "

GCT Ala (A)

GCC "

GCA "

GCG "

GAT Asp (D)

GAC "

GAA Glu (E)

GAG "

GGT Gly (G)

GGC "

GGA "

GGG "

a. The following codons can be mutated by one base to produce an amber codon:

CAG    Gln

AAG    Lys

GAG    Glu

TCG    Ser

TTG    Leu

TGG    Trp

TAA    Stop

TAT    Tyr

TAC    Tyr

b. From part a, CAG (Gln) and TGG (Trp) can become amber stop codons through EMS.

c. From part b, both of the resulting amber codons could be suppressed by amber nonsense suppressors generated by EMS.

3a. The codon is the three nucleotide sequence in the mRNA that indicates which amino acid should be incorporated in the growing polypeptide chain.  The anticodon is the complementary three nucleotide sequence in the appropriate tRNA.

b. Template strand is the DNA strand off which the mRNA is synthesized.  The coding, or non-template, strand is the DNA strand complementary to the template strand; it has the same sequence (except for T for U substitutions) as the mRNA.

c. The Pribnow box is a sequence of six nucleotides (TATAAT) positioned at -10 that signals where transcription initiation should begin in prokaryotic DNA.  The Shine-Delgarno sequence is a short, purine-rich region in the mRNA that is complementary to the rRNA within the 16S ribosomal subunit.  The sequence signals which AUG acts as the translation start in mRNA.

4a. False, a wobble allows the anticodon in the tRNA to hybridize with different codons in mRNA.

b. False, a frameshift mutation affects all the subsequent amino acids.

c. False, only one codon (AUG) encodes for the start of protein synthesis; three codons signal the end of protein synthesis.

d. False, the wobble is first base (5’ to 3’) in the anticodon.

e. True, RNA can be used as a template for DNA synthesis in a process known as reverse transcription.

f. True.  For example, a single base substitution causing CAT to change to AAT would signal a termination.

g. False, the Wobble Hypothesis explains how alternate base pairing can occur with the first nucleotide (going from 5' to 3') in the anticodon.

5a. Digestion of RNA with alkali will cleave the strand after each 3’ phosphate.  Therefore, the products remaining will consist of pppNp, Np, and N-OH

b. If RNA was synthesized in the 3’ to 5’ direction (i.e. by adding ribonucleotides to the 5’ end), then the pppNp and Np fragments should be labeled with tritium.

c. If RNA was synthesized in the 5’ to 3’ direction (i.e. by adding ribonucleotides to the 3’ end), then the Np and N-OH fragments should be labeled with tritium.

d. Since the N-OH fragments were labeled with tritium, RNA synthesis must occur in a 5' to 3' direction.

6. In a missense mutation, the new nucleotide alters the codon so as to produce an altered amino acid in the protein product.  With a nonsense mutation, the new nucleotide changes a codon that specified an amino acid to one of the stop codons (TAA, TAG, or TGA). Therefore, translation of the messenger RNA transcribed from this mutant gene will stop prematurely.

Explanation:

The complementary strand of  the mentioned DNA strand is AGCTCCGATT.

DNA  is a hereditary material  which is present in human beings as well as all other living organisms.  Every cell which is present in an organism's body has DNA  which is the same. Most of the DNA is situated in the cell's nucleus and small amount of it can be found in the cell's mitochondria as well.

Information which is stored in DNA is stored as codes made up of four chemical bases namely, adenine, thymine , cytosine and guanine.Human DNA consists of 3 billion bases .The order of the bases determines information which is required for building and maintaining an organism.

DNA bases are capable of pairing up with each other. Adenine pairs with thymine and guanine pairs up with cytosine .Each base is also attached to a sugar molecule and a phosphate group. A base, phosphate  sugar are together called as nucleotides.

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Your question is incomplete but most probably your full question  was ,one Strand of DNA is listed below. Which of the following best

represents the complementary strand of DNA?

DNA Strand: TCGAGGCTAA

A. ACGUCCGAUU

B. GATCTTAGCC

C. AGTCCGAUU

D. AGCTCCGATT.

Answer:

As Per Provided Information

We have been asked to determine the volume of the crate .

Formula used to calculate the volume of crate is

\( \boxed{\bf \: Volume_{(Crate)} = Base \: Area \times Height}\)

On substituting the given value in above formula and we obtain.

\( \qquad\longrightarrow\sf \: Volume_{(Crate)} \: = 6 \times 4 \\ \\ \\ \qquad\longrightarrow\sf \: Volume_{(Crate)} \: = 24 \: {m}^{3} \)

Therefore,

Answer: When a cat feels threatened the muscles under their skin contract to extend

the hairs on their backs and tails.

Explanation:

The enzyme which allows a modified form of glucose to get confined within the cell since no transporter for this modified form exists is known as hexokinase.

The modification that the enzyme makes is phosphorylation, whereby a phosphate group is added to the glucose molecule, resulting in glucose-6-phosphate. This modification of glucose-6-phosphate is essential as it keeps the glucose within the cell, and thus it can be used as a source of energy for the cell by glycolysis.Glucose-6-phosphate can then enter the glycolytic pathway, whereby it can either be converted into glycogen or pyruvate through a series of reactions.

This pathway is considered to be an anaerobic pathway since it does not require oxygen to occur. The mechanism reaction type in which glucose is phosphorylated is a transferase reaction, whereby a phosphate group is transferred from ATP to glucose, resulting in glucose-6-phosphate. Hexokinase is an essential enzyme in the body since it helps in maintaining glucose homeostasis.

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Answer:F

Explanation: I just know

Promoter sequences are bound by bacterial RNA polymerases. The promoter is the name given to the segment that RNA polymerase attaches to in bacteria.

The role of a locus just upstream of the three genes in the lactose operon was initially described by geneticists in 1964 using this nomenclature. The primary enzyme responsible for transcription is RNA polymerase, which creates a complementary strand of RNA using a template made of single-stranded DNA. RNA polymerase constructs an RNA strand specifically by adding each new nucleotide to the 3' end of the strand as it moves along in the 5' to 3' direction.

Promoter sequences are DNA sequences that specify the starting point of an RNA polymerase-mediated transcription of a gene. The 5' end of the transcription initiation site or immediately upstream are the traditional locations for promoter sequences.

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Answer:

D.Salt and water

Explanation:

:) hope this helped

Answer:

Better Irrigation can help preserve both energy and water, given the fact that if irrigation precision with respect to the amount of water a plant needs, is timed perfectly each day, as well as unutilizing uneeded areas of irrigation, can help save a tremendous amount of both water and energy. With both power and water usage per plant being on the T, this not only perfects the way of cultivating plants, but also makes it as enviromentally friendly and cost-efficient as possible.

Answer:

all of them except

"Many of the girls plays on the sidewalk."

Explanation:

Subject here "girls" is plural which mean if a subject is plural, its verb must also be plural. verbs REMOVE an s from the singular form.

therefore inorder for it to be correct, s must be remove from play

Answer: Many of the girls plays on the sidewalk.

Explanation: "Plays" needs to be removed. Correct sentence: Many of the girls play on the sidewalk.

Hope this helps! :)

Answer:

Mitosis is the dividing of all other cells in the body. It is how a baby in the womb grows. Mitosis causes the number of chromosomes to double to 92 and then split in half back to 46. This process repeats constantly in the cells as the baby grows.

Explanation:

Normally, meiosis causes each parent to give 23 chromosomes to a pregnancy. When sperm fertilizes an egg, the union leads to a baby with 46 chromosomes.

The plant hormone that triggers the withering of petals and stamens while promoting fruit ripening is ethylene.

Correct option is E.

Abscisic acid is a plant hormone primarily involved in controlling processes such as seed dormancy, leaf abscission, and inhibition of cell division. It is produced in growing leaves and buds and is also found in fruits and seeds, where it performs a ripening and ripening-related functions. When abscisic acid accumulates in the reproductive organs, it causes the petals and stamens to wither and fall off.

It also triggers the ripening of fruits and vegetables by activating specific enzymes in the cells. Abscisic acid is also involved in other important processes like controlling leaf water stress through the stomatal closure and promoting bud dormancy. It primarily works in opposition to auxin, a plant hormone that stimulates fruits and leaf abscission.

Correct option is E.

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The main metabolites that feed into gluconeogenesis are lactate, pyruvate, glycerol, and certain amino acids.

Gluconeogenesis is the process by which the liver and kidneys synthesize glucose from non-carbohydrate sources, such as lactate, pyruvate, glycerol, and amino acids. These metabolites are converted into glucose through a series of enzymatic reactions that bypass the irreversible steps of glycolysis.

Lactate is produced by anaerobic glycolysis in tissues such as muscle, and can be transported to the liver for conversion to glucose. Pyruvate, the end product of glycolysis, can also be converted to glucose through gluconeogenesis. Glycerol, which is released from adipose tissue during lipolysis, can be converted to dihydroxyacetone phosphate (DHAP) and enter the gluconeogenic pathway.

Certain amino acids, such as alanine, can also be converted to glucose through gluconeogenesis. The carbon skeletons of these amino acids are converted into pyruvate, oxaloacetate, or other intermediates that enter the gluconeogenic pathway.

The regulation of gluconeogenesis is complex, and is influenced by hormonal signals such as glucagon and insulin, as well as by the availability of substrates and cofactors. The process is crucial for maintaining blood glucose levels during periods of fasting or carbohydrate restriction, and for providing glucose to the brain and other tissues that require a constant supply of glucose for energy.

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C. Binding of Ran-GTP to the receptor releases the cargo protein accurately describes a step in GTP-driven nuclear transport.

GTP-driven nuclear transport involves the regulation of cargo movement between the nucleus and the cytoplasm using the small GTPase protein Ran. The correct answer, C, states that the binding of Ran-GTP to the receptor releases the cargo protein.

In this process, cargo proteins containing nuclear localization signals (NLS) are recognized by import receptors in the cytoplasm. The cargo-receptor complex is then transported through nuclear pore complexes (NPCs) embedded in the nuclear envelope. Inside the nucleus, the GTP-bound form of Ran (Ran-GTP) interacts with the cargo receptor, leading to the release of the cargo protein from the receptor.

Ran-GTP binding causes a conformational change in the receptor, facilitating the dissociation of the cargo protein. This step allows the cargo to be released within the nucleus, where it can perform its specific functions. Ran-GTP subsequently undergoes hydrolysis to Ran-GDP, which leads to the release of the receptor from the cargo protein, resetting the system for subsequent rounds of nuclear transport.

Overall, the binding of Ran-GTP to the receptor is a critical step in GTP-driven nuclear transport, enabling the release of cargo proteins within the nucleus.

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Most RNA viruses carry RNA-dependent RNA polymerase. Option B is the correct answer.

A virus that possesses ribonucleic acid (RNA) as its genetic material is referred to as an RNA virus, as opposed to a retrovirus. Although it is typically single-stranded RNA (ssRNA), the nucleic acid can also be double-stranded (dsRNA). Option B is the correct answer.

Common cold, influenza, SARS, MERS, Covid-19, Dengue virus, hepatitis C, hepatitis E, rabies, polio, mumps, and measles are among the well-known human illnesses brought on by RNA viruses. RNA viruses can be further divided into negative-sense and positive-sense, or ambisense, RNA viruses based on the sense or polarity of their RNA. Because positive-sense viral RNA and mRNA are related, the host cell may quickly convert positive-sense viral RNA. Since negative-sense viral RNA is complementary to mRNA, translation requires an RNA-dependent RNA polymerase to convert it to positive-sense RNA.

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The complete question is, "Most RNA viruses carry which of the following enzymes?

A. DNA-dependent DNA polymerase

B. RNA-dependent RNA polymerase

C. reverse transcriptase

D. ATP synthase"

Answer:

Overpopulation

Pollution

Burning fossils fuels

Answer:

growth, reproduction, and sensitivity

Explanation:

The characteristics of living organisms displayed by the object are growth, reproduction, and sensitivity.

When the organism reacted by rolling over in response to touch from the learner, it was displaying sensitivity. Sensitivity has to do with the ability of living organisms to be sensitive to things such as touches.

When the object divided, it was displaying growth and reproduction that are characteristics of living organisms. Growth can be defined in this case as an irreversible increase in the number of cells and reproduction can be defined as the production of new individuals.

By dividing into 2, the object has increased its number of cells and has also produced a new individual.

Hence, the characteristics of living organisms shown by the object are growth, reproduction, and sensitivity

Answer:

k

Explanation: