4. Which of the following statements accurately describes a difference between
viruses and bacteria? *
A. Viruses are much smaller than bacteria cells.
B. Viruses have a higher metabolism than bacteria cells.
C. Viruses contain organelles while bacteria cells do not.
D. Viruses reproduce asexually while bacteria cells reproduce sexually.
e
Answers
Answer:
Explanation:
Nor do viruses have cells: they're very small, much smaller than the cells of living things,Bacteria are also much bigger than viruses. The virus or its genetic material enters the cell.
The statements accurately describes a difference between viruses and bacteria is viruses are much smaller than bacteria cells. Thus, option A is correct.
What is virus?A virus is a microscopic organism that serves as infectious agent and replicates only inside the living cells of an organism. Viruses infect all living organisms such as plants, animals, human beings including bacteria and other microscopic organism.
Virology is the branch of science which deals with the study of viruses. When virus infected a host cell rapid production can be observed and by multiplying rapidly thousands of original copy of viruses are produced.
When the virus enters into a infected cell or living cell, viruses exist in the form of independent particles known as virions. In open air viruses are non-living but when they entered into a living cell of an organism they become active and reproductive as well.
Therefore, The statements accurately describes a difference between viruses and bacteria is viruses are much smaller than bacteria cells. Thus, option A is correct.
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Related Questions
betadine is an example of which of the following groups of antimicrobial agents?
Answers
Betadine is an example of the iodophor group of antimicrobial agents.
Iodophors are antimicrobial agents made up of iodine and solubilizing agent, such as polyvinylpyrrolidone. Iodine is present in various forms in iodophors, including free iodine, iodine tinctures, and povidone-iodine.
They can be applied as antiseptics or disinfectants. Iodophors can be used to treat and prevent a wide range of bacterial, fungal, and viral infections by reducing their spread.
They're typically used in medicine, food processing, and agriculture, among other industries. Betadine is a type of iodophor that is commonly used as a surgical scrub and to disinfect wounds.
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How does the Krebs cycle rely on glycolysis in order to run?
Answers
Answer:
Krebs cycle involves a series of reactions which oxidize the pyruvic acid molecules formed from glycolysis to produce carbon dioxide, energy(atp) as well as water
Which statement is accurate about natural selection?(1 point) A. Natural selection cannot inactivate genes. B. Natural selection does not impact reproduction rates. C. Natural selection does not change the alleles an organism has. D. Natural selection cannot occur through mutations.
Answers
Answer:
B
Explanation:
The correct option is "B" Natural selection does not impact reproduction rates according to the theory of Natural selection.
What are the factors of natural selection?Natural selection is the process through which populations of living organisms adapt and change. There are four factors are required for natural selection are reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population.
Hence, the option is "B" Natural selection does not impact reproduction rates according to the theory of Natural selection.
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which feature of the ocean floor results when one plate is pulled under another?abyssal plainmid-ocean ridgetrenchcoastal slope
Answers
One of the features of the ocean floor that occurs as a result of one plate being pulled under another is a trench.
A trench is an elongated, narrow, and deep depression on the ocean floor. A subduction zone occurs when one tectonic plate moves under another, resulting in the formation of trenches. As one plate moves beneath another, it begins to sink into the mantle, where the friction between the two plates causes the leading edge of the subducting plate to melt and form magma. The magma then rises to the surface, forming a volcanic arc and oceanic trench. The trenches are usually located near the continents, as these are the locations where tectonic plates meet, such as the Mariana Trench, the deepest trench on the ocean floor.
In conclusion, the feature of the ocean floor that results when one plate is pulled under another is a trench.
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Beans, peaches, and tomatoes are all in the same group of plants. What do these plants have in common?
Answers
Males express all the genes on their x chromosome, dominant and recessive. true or false
Answers
False. Males do not express all the genes on their X chromosome, dominant and recessive.
This is because males have only one X chromosome, while females have two. In males, the genes on the X chromosome are expressed in a different way.
The fundamental physical and functional unit of heredity is a gene. DNA is what makes up genes. Some genes serve as instructions for making proteins, which are molecules. Be that as it may, numerous qualities don't code for proteins. Genes in humans can be as small as a few hundred DNA bases or as large as more than two million bases.
Information that is transmitted from one generation to the next is carried by our genes. One child, for instance, has blonde hair like their mother and brown hair like their father because of their genes. Genes also determine whether babies will be male or female and why some diseases run in families.
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Neurons that are i myelinated appear ___ which is what we call ____ matter
A. White:white
B.grey:grey
C. White:grey
D.grey:white
Answers
Answer:
A
Explanation:
Which of the samples in the above table are alive? (E. Coli, Fungus, Human Skin, Maple leaf, root hair, protists, and sand/silt). How do you know?
Answers
every single one of them except for the sand/slit
every single one of those except for sand/slit has a metabolism and is made of cells
The sample in the table are alive are E. Coli, fungi, Human Skin, Maple leaf, root hair, protists. Only sand/silt is not alive.
What are living organisms?All living creatures, according to cell theory, are made up of cells, making the cell the essential basic unit of all forms of life.
Organisms can be unicellular (such as bacteria) or multicellular (such as plants) (e.g., plants and animals). According to the principle of biogenesis, only live organisms may produce other living species. Nucleic acids, lipids, carbohydrates, and proteins are all examples of macromolecules.
All organisms contain all four or any of these organic compounds as the basic structure and aid in the provision of all functions and supports in the living body.
Therefore, the live samples from the table are E. Coli, fungi, Human Skin, Maple leaf, root hair, and protists.
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Classify each statement as describing class I MHC proteins or class II MHC proteins. Class I MHC Class II MHC Answer Bank usually found on the surface of antigen-presenting cells found on the surface of all noncancerous nucleated cells displays fragments of proteins synthesized within the cell activates CD4 T cells displays protein fragments from endocytosed materials activates CD8 T cells
Answers
The statement "usually found on the surface of antigen-presenting cells" describes Class II MHC proteins. The statement "found on the surface of all noncancerous nucleated cells" describes Class I MHC proteins.
The statement "displays fragments of proteins synthesized within the cell" describes Class I MHC proteins. The statement "displays protein fragments from endocytosed materials" describes Class II MHC proteins. The statement "activates CD4 T cells" describes Class II MHC proteins. The statement "activates CD8 T cells" describes Class I MHC proteins.
Class I MHC proteins:
- Found on the surface of all noncancerous nucleated cells
- Displays fragments of proteins synthesized within the cell
- Activates CD8 T cells
Class II MHC proteins:
- Usually found on the surface of antigen-presenting cells
- Displays protein fragments from endocytosed materials
- Activates CD4 T cells
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Physics
Solve this
And also tell what is 1dm3
Answers
Explanation:
1 dm3 is a cube with dimension 1 deci meter
One cubic decimeter is the unit of volume which is exactly equal to one litre.
What is meant by volume ?Volume of an object is defined as the amount of space within the object which the matter can be occupied.
Here,
It is said that volume is a derived quantity.
Volume is said to be a derived quantity because, volume is the product of length, breadth and height of a three-dimensional shape.
It is given that,
1 L = 1000 mL
1 L = 1 dm³
1L = (10cm)³ = 1000 cm³
We know that, 1 cm = 10⁻²m
So, we can write that,
1L = 1000 x (10⁻²m)³
1L = 10³ x 10⁻⁶m³
Therefore,
1L = 10⁻³ m³
Or
1 m³ = 1000 L
1 dm³ or 1 cubic decimeter is the unit of volume, which is equal to one litre.
Hence,
One cubic decimeter is the unit of volume which is exactly equal to one litre.
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The production of offsrpings is a charatericities of life that enables the continuation of a species.
Answers
Answer:
"Reproduction" is a characteristic of life that enables the continuation of a species
Explanation:
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what is the most important advantage of pfu polymerase over taq polymerase?
Answers
Taq polymerase is an enzyme utilized in molecular biology to help with the polymerase chain reaction (PCR). It was initially separated from Thermus aquaticus, a bacterium found in a natural spring in the Lower Geyser Basin of Yellowstone National Park.
The most important advantage of Pfu polymerase over Taq polymerase is the proofreading ability of Pfu polymerase. Taq polymerase doesn't have a proofreading ability, which implies that it doesn't have a 3' to 5' exonuclease action. This leads to a high error rate and the likelihood of mutations during DNA replication. Pfu polymerase (Pyrococcus furiosus) is a DNA polymerase. The archaea P. furiosus is a hyperthermophilic bacterium that grows optimally at 100 °C. Pfu polymerase is thermostable and can endure high temperatures, just like Taq polymerase. Nonetheless, it likewise has a 3' to 5' exonuclease activity that permits it to proofread the DNA strand that it is copying and correct any errors that it may find. The most important advantage of Pfu polymerase over Taq polymerase is the proofreading ability of Pfu polymerase.
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How do Antibodies help fight Infections/viruses and bacteria in our body
Answers
Answer:
The acquired immune system produces special molecules (known as antibodies) with the help of immune cell system that protects the body against a specific intruder. After the body has been exposed to the invader, cells called B lymphocytes produce antibodies. Antibodies remain in your child's system.
Which mutation changes the number of chromosomes in the cell
Answers
Answer: aneuploidy
A gain or loss in the number of chromosomes from the normal 46 is called aneuploidy. A common form of aneuploidy is trisomy, or the presence of an extra chromosome in cells. "Tri-" is Greek for "three"; people with trisomy have three copies of a particular chromosome in cells instead of the normal two copies.
Which is a difference between a compound light microscope and a scanning electron microscope? A: the scanning electron microscope can view the internal part of a cell, while the compound light microscope views the surface of a cell. B: The scanning electron microscope specimens can be stained for contrast, while the compound light microscope specimen appears black and white. C: the scanning electron microscope is used for dissections, while the compound light microscope is not. D: The scanning electron microscope uses an electron beam and a layer of gold to view the surface of the cell, while the compound light microscope uses light and lenses.
Answers
Answer:
The correct answer is D.
Explanation:
Because the scanning electron microscope uses an electron beam instead of a light beam to form an image, and the compound microscope uses lens and light.
which of the following statements are true about dna replication in eukaryotes? select all that apply. a. replication of the entire genome takes about ten minutes. b. a replication fork occurs at each growing point of the replicating chromosome(s) c. eukaryotes have many different chromosomes, with replication occurring in each at the same time d. replication occurs at the rate of about 500-5000 base pairs per minute e. multiple sites of replication are present on each chromosome
Answers
True statements
b. a replication fork occurs at each growth point of the replicating chromosome;
During DNA replication, a double-stranded DNA helix unwinds and splits into two single strands, creating a replication fork. A replication fork is the point at which two DNA strands are separated and a new strand is synthesized.
c. Eukaryotes have many different chromosomes, and each replicates simultaneously.
Eukaryotes have multiple chromosomes and replication occurs in all of them simultaneously.
d. replication occurs at a rate of approximately 500-5000 base pairs per minute.
The rate of DNA replication in eukaryotes is typically 500-5000 base pairs per minute.
e. each chromosome has multiple sites of replication.
DNA replication occurs at multiple sites on each chromosome called origins of replication. These origins are where the replication process begins and are distributed along the chromosome to allow efficient whole-genome replication.
False statements
a. Whole genome replication takes about 10 minutes.
Replication of an entire eukaryotic genome can take hours to days, depending on the size of the genome and the particular organism.
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2. One of the physical characteristics is that a gas can
Answers
True or False? Circle the correct answer for each statement. If a statement is false, explain why under the
statement
1. The type of chemical bond within the water molecule is the ionic bond. True False
Answers
Answer:
False
Explanation:
The water molecule is not an ionic bond due to it being made out of covalent bonds.
Ribosomes are tiny factories within cells that do all of the following EXCEPT
A. decode an mRNA message into a protein
B. assemble amino acids into polypeptide chains
C.attach to mRNA molecules in the cytoplasm
D. translate DNA into RNA
Answers
Answer:
d. translate DNA into RNA
Explanation:
An RNA polymerase binds to promoters and then breaks down hydrogen bonds between two strands of the DNA and attaches on one of them. A DNA strand is used as a template for a new RNA molecule. In this way, pre-mRNA is made, which becomes mRNA after the introns are removed.
A mRNA molecule enters the ribosomes, located in the cytoplasm. In these organelles, a transfer RNA attaches to a mRNA and the process of translation begins. The final product is a polypeptide chain.
The Ribosomes should be considered for small factories within cells that does not involved the translate DNA into RNA
What is RNA?The polymerase binded for promoters and then split down hydrogen bonds that lies between 2 strands of the DNA and then attached one of them.
The DNA strand should be used like the template for the new RNA molecule. Also, the mRNA should be made that becomes mRNA when introns should be removed.
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Why is the nucleus called the "control center" of the cell?
Answers
Answer:
because it gives signals out to the rest of the cell.
Explanation:
Answer:
because it controlls all the activities of the cell including cell reproduction, heredity. these proteins in turn, form the structural units of cells and control all chemical processes within the cell.
What features do we find in the cells of bacteria AND plants?
What features do we find in the cells of animals AND plants?
What features do we find in ALL cells (animals, plants, AND bacteria)?
Answers
Answer: There is always a nucleus
where does the energy used to produce atp in the light reactions of photosynthesis come from?
Answers
Answer:
I don't know it can you help me
what is the main difference between plant and animal cell
Answers
Answer:
The vacuoles are different sizes.
Explanation:
The organisms native to an area will impact the types of soil found in that area.
Please select the best answer from the choices provided
T
F
Answers
Answer:
Trueeeee
Explanation:
trust :)
A firm has $820 in inventory, $3,200 in fixed assets, $1,210 in accounts receivable, $890 in accounts payable, and $360 in cash. What is the amount of the net working capital?
a. $4,700
b. $5,590
c. $3,600
d. $2,390
e. $1,500
Answers
The net working capital for the firm is $1,500, calculated by subtracting current liabilities from current assets, the correct option is (e).
To calculate the net working capital, you need to subtract the current liabilities from the current assets.
In a company's financial statements, the formula for calculating current assets can be expressed as the sum of inventory, accounts receivable, and cash.
Current Assets = Inventory + Accounts Receivable + Cash
Current Liabilities = Accounts Payable
Using the given values:
Current Assets = $820 (Inventory) + $1,210 (Accounts Receivable) + $360 (Cash)
= $2,390
Current Liabilities = $890 (Accounts Payable)
The formula to calculate Net Working Capital is derived by subtracting Current Liabilities from Current Assets.
Net Working Capital = Current Assets - Current Liabilities
Net Working Capital = $2,390 - $890
= $1,500
Therefore, the amount of net working capital is $1,500.
Hence, the correct option is (e).
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WBC count that can cause turbidity in the cyanmethemoglobin method resulting to falsely high hemoglobin value:_____.
Answers
A very high WBC count can lead to turbidity in the cyanmethemoglobin method resulting in falsely high hemoglobin value.
Cyanmethemoglobin method is a method which is used for the estimation of hemoglobin. In this method, hemoglobin is converted to cyanmethemoglobin by adding ferricyanide and potassium cyanide. The absorbance is then measured at 540nm using a spectrophotometer.
This is a very advantageous method as it is able to measure all forms of hemoglobin except sulphaemoglonin and also since spectrophotometer is used, subjective errors are avoided. But, if the WBC count is very high, it can lead to turbidity in the cyanmethemoglobin method resulting in falsely high hemoglobin value.
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The recessive allele 'a' occurs with a frequency of 0.72 in a population of toads that is in Hardy-Weinberg equilibrium What is the frequency of homozygous dominant individuals ? (Give your answer to 4 decimal places)
Answers
The frequency of homozygous dominant individuals in a population of toads in Hardy-Weinberg equilibrium can be calculated as 7.84%.
How to calculate homozygous dominant frequency?In a population that is in Hardy-Weinberg equilibrium, the frequency of the homozygous dominant genotype (AA) can be calculated using the following equation:
p² + 2pq + q² = 1
where,
p is the frequency of the dominant allele (A), q is the frequency of the recessive allele (a), and 2pq represents the frequency of heterozygous individuals (Aa).We are given that the frequency of the recessive allele (a) is 0.72.
Therefore, the frequency of the dominant allele (A) can be calculated as follows:
p = 1 - q
p = 1 - 0.72
p = 0.28
Now, we can use the equation above to calculate the frequency of homozygous dominant individuals (AA):
p² = (0.28)² = 0.0784
Therefore, the frequency of homozygous dominant individuals is 0.0784, or 7.84% (to four decimal places).
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A. calls B. dinners C. cleans D. shops
Answers
Answer:
a call
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Answer:
a.call
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What is better Sharingan or Byakugan
Answers
Answer:
well in combat byakugan, in illsusiona nd far distance attacks built to one hit K.O a person sharingan is
Explanation:
Blood flow to the right side of the heart muscle decreases due to constriction of the __________, and decreased blood flow to the heart tissue can result in