True or False: The density of a specific type of material never changes.

Answers

Answer 1
Answer:

The statement 'the density of a specific type of material never changes' is TRUE.

  • The density of a substance/material is a measurement that describes the relationship between mass and volume.

  • The density can be easily calculated by dividing mass by volume (d = M/V, where d describes density, M is equal to mass, and V is equal to the volume).

  • Density is considered as an intensive property, thereby this value does not change as the amount of a given material/substance changes.

In conclusion, the statement 'the density of a specific type of material never changes' is TRUE.

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Answer 2
Answer:

Answer:

true

Explanation:

One of the ways to tell what a material is would be to find the density then you know the material


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Using the hardy-weinberg principle, which expression represents the frequency of the homozygous recessive genotype?
Why would cells die if they were unable to make (or otherwise obtain) the amino acid arginine?
A researcher is studying gene expression in different types of cells. For a gene of interest, he notes its expression no longer appears to be regulated—it occurs in all cells, rather than in just a few cell types. The gene’s corresponding transcript and protein, however, appear normal. This may be the result of a mutation in which of the following regions associated with the gene? (5 POINTS)SilencerIntronExonPromoter9What role does the MutL protein play in DNA repair? (5 POINTS)It performs a proofreading function, similar to DNA polymerase, and removes incorrect bases from the template DNA strand.It recognizes and binds to a pair of "mismatched" nucleotides, preventing their translation.It recognizes the newly-synthesized DNA strand (e.g., by detecting nicks), ensuring only it—and not the template strand—is repaired.It helps to link together regions of DNA, after an error has been removed via exonuclease.10If a mutation occurs that affects the large subunit of a ribosome, rendering it inactive, how would this affect translation? (5 POINTS)The small subunit of the ribosome would fail to associate with a mRNA.Methionine tRNA would not recognize the start codon of a mRNA.New amino acids would not be added after the initial methionine, so translation would be effectively inhibited.Arginine tRNA, rather than methionine tRNA, would associate with a mRNA’s stop codon.

What is the final product of the Calvin cycle

Answers

The answer is glucose

The function of the Calvin cycle is to take CO2 from the air and bond it together to form the molecules that will make the sugar glucose. This process is called carbon fixation . The actual result of the Calvin cycle is not glucose, a 6-carbon sugar, but another molecule called G3P. G3P is an abbreviation for glyceraldehyde-3-phosphate. This molecule is later converted by other chemical reactions into glucose.

It was in my lesson.

What structure is only found in animal cells

Answers

Answer:

Centrosomes and Lysosomes

Explanation:

Animal cells each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts, and other specialized plastids, and a large central vacuole, whereas animal cells do not.

Write a complete step-by-step plan for dealing with broken glassware on the floor or lab table. Write your plan in list form in the order in which steps should be taken.

Answers

The step-by-step plan for dealing with broken glassware on the floor or lab table has been stated below:

1 tell the person in charge or the teacher

2 make sure u did not get cut

3 get the large pieces and put them into glass waist container

4 get broom or brush weep area and get small pieces depose in same place

5 take a wet wipe and cover area to pick up anything that as missed.

What is glassware?

Glassware has been refer to the any laboratory apparatus made of glass. When you are done using a glassware, wipe down the glassware to remove any cleaning solvent. They are often washed with a solvent and particles of the cleaning solvent adheres to the glassware.

A lot of our laboratory apparatus are made of glass e.g beakers, conical flask, measuring cylinders etc. These glassware must be properly cleaned after use.

These particles of the solvent must be wiped to remove these particles of cleaning solvent that could contaminate a sample placed in the glassware.

Therefore, The step-by-step plan for dealing with broken glassware on the floor or lab table has been stated below:

1 tell the person in charge or the teacher

2 make sure u did not get cut.

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Answer:

Notify the teacher and follow his or her instructions.

Wash the cut with soap and water.

Treat the cut with antiseptic from the first-aid kit.

Put a bandage over the cut.

Explanation:

Scientists today can use many investigative methods to study evolution. Which method was developed after Darwin'stime?
O DNA comparisons
o observations
O comparison of fossils
O experimentation

Answers

Answer:

DNA comparisons

Explanation:

The molecular nature of DNA and its role in inheritance and evolution was not known during Darwin's time.  Therefore, it was not possible to compare similarities in DNA sequences between different species to understand their evolutionary relationships.  

This type of method was not in regular use until the 1980s/1990s, when sequencing and DNA amplification technologies were invented

What is the y intercept of the line with the equation 4x + 2 = 12

Answers

4x-2y=12  

plug in 0 to find y or x intercept: 4x-2(0)=12 4(0)-2y=12

4x=12 2y=12

x=2 y=-4

(2,0) (0,-4)

so the y-intercept is -4 and x-intercept is 2

Which of the following identifies the process shown at point Z?

Answers

According to the diagram, it identified the process shown at point Z should be considered as the Translation.

What is Translation?

In terms of molecular biology and genetics, translation refer to the process where  ribosomes in the cytoplasm should synthesize the proteins after considering the process of transcription of DNA to RNA with respect to the cell's nucleus.

Therefore, According to the diagram, it identified the process shown at point Z should be considered as the Translation.

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Answer: Translation

Explanation: Transcription is converting DNA to mRNA.  They're both made of  nucleotides, so you're just transcribing the information from one form to the other.  Translation is turning mRNA to protein, so you're translating the information from one language to another.