Answer:
Nanometer
Explanation:
A Nanometer is 1000 time smaller than a Micrometer and a micrometer is 1000 time smaller than a millimetter and so on.
The smallest unit of measurement among the options given is the nanometre (nm).
What is the unit of measurement?A unit of measurement is a defined quantity used to express a physical quantity such as length, mass, time, volume, or temperature. Units of measurement provide a standard reference for comparing and measuring physical quantities.
There are several systems of units used around the world, including the International System of Units (SI), the British Imperial System, and the United States Customary System. The SI system is the most widely used system of measurement, and it is based on the metric system.
SI units are defined using a set of base units, such as the meter for length, the kilogram for mass, and the second for time. Other units, such as the Newton for force or the Watt for power, are derived from these base units.
In addition to the SI units, there are also non-SI units that are widely used in various fields, such as the Angstrom for measuring atomic distances in chemistry and the knot for measuring speed in marine and aviation industries.
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Help ASAP
Using a microscope a student observes small circular cells that have a cell wall but no nucleus have based on their observations how would the student classify the cells A bacteria B protist C plant D animal
If enzymes are made up of proteins, then can proteins be considered as monomers to enzymes?
Answer:
no
Explanation:
just no............
pros and cons of penguins in huddles
Answer:
Pro: Warmeth for the cold
Con: Big dinner for predators
What would be the outcome of the processes shown below if the mRNA never moved outside
of the nucleus?
Answer:
Translation is the process of protein synthesis in which the genetic information encoded in mRNA is translated into a sequence of amino acids in a polypeptide chain
Ribosomes bind to mRNA in the cell's cytoplasm and move along the mRNA molecule in a 5' - 3' direction until it reaches a start codon (AUG)
Anticodons on tRNA molecules align opposite appropriate codons according to complementary base pairing (e.g. UAC will align with AUG)
Each tRNA molecule carries a specific amino acid (according to the genetic code)
Ribosomes catalyse the formation of peptide bonds between adjacent amino acids (via a condensation reaction)
The ribosome moves along the mRNA molecule synthesising a polypeptide chain until it reaches a stop codon, at this point translation stops and the polypeptide chain is released
Explanation:
The process of protein synthesis initiates with the transcription process in the nucleus and continues with the translation process in the cytoplasm. If the mRNA never left the nucleus, the translation would not be possible.
-------------------------------------
The protein synthesis process involves transcription and translation.
Transcription:
Transcription is the copying process of the DNA section for the desired protein occurs.It happens in the nucleus, where the template DNI strand is read in direction 3´→ 5´ to build the mRNA molecule in direction 5´→ 3´.Once the transcription is over, the new mRNA molecule leaves the nucleus and goes to the cytoplasm.
Translation:
Translation occurs in the cytoplasm when mRNA meets a ribosome. rRNA and tRNA read mRNA in the direction 5´→ 3´ to build the protein. While the ribosome reads mRNA strain from its 5´ extreme to 3´, tRNA adds the correct amino acids to build the polypeptide. Protein growth initiates in the AUG start codon -Metionin-, and ends when reaching either of the stop codons UAA, UAG, UGA.
If the mRNA does not move outside of the nucleus, the translation process is not possible. Only transcription would occur, but no translation. Protein synthesis could not be accomplished.
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Which statement about the cell membrane is true?
It contains cellulose and sugars that are involved in communication.
It is present in animal cells only.
It is rigid and elastic for supporting the cell’s shape.
It prevents harmful substances from entering a cell.
Answer:
D
Explanation:
9. In one or two sentences, describe how the available energy may affect the population sizes of organisms at different
trophic levels
Answer:
Explanation:
In food web energy are been transfered from the producer which are often plants down to the last individual on the web.
Each individual takes in and expels the remaining to the next until it is distributed to all. The amount of energy received from the producer will determine the amount of energy that will be available for others to share, when enough energy is transferred they all have enough to share but when the energy level is low the individual on the web also receive a low energy this may affect the population leading to a reduction,
It can also lead to competition among the organisms,migration out of environment to search for food. But When the energy level is high or on the increase it leads to growth and development among the organism.
What apparatus did Priestly use to reach
his conclusions?
A. triple beam balance
B. bell jar
C. microscope
Please help, 10 points
Answer:
The answer is B. Bell Jar
Place the Levels of organization in hierachical order from smallest to largest
1. Cells
2. Tissues
3. Organs
4. Atoms
5. Molecules
6. Organisms
7 Organelles
Answer:
The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism.
Explanation:
Hope this helps you!!!
A solution with a hydroxide (OH-) ion concentration greater than water would be a?
A) acid
B) base
C) neutral
D) ion
Answer:
B) base
Step-by-step explanation:
Acids have a higher concentration of hydrogen ions. Bases have a higher concentration of hydroxide ions.
Can producers function without sunlight? Why or why not?
Answer:
No because the producers function is to produce food for itself and other organisms through photosynthesis. Without sunlight, photosynthesis is impossible. Dont know why it is bold srry.
How does being close to the ocean keeps the cities near it cool?
Answer:
I guess the ocean breeze
Which is the proper order of structures that contact the substances removed from the blood?
nephron → urethra → bladder → ureter
urethra → ureter → bladder → nephron
nephron → ureter → bladder → urethra
urethra → bladder → ureter → nephron
Answer:
nephron → ureter → bladder → urethra
Answer:
nephron → ureter → bladder → urethra
Explanation:
The nephron, a functioning unit of the kidney, filters blood and is where urine is produced. Once there is urine, it empties into the ureter, a tube from the kidney to the bladder. The urine is then temporarily stored in the bladder until the body is ready to excrete the urine through another tube called the urethra.
How would you expect the spread of an airborne disease to be similar to and different from the spread of a foodborne disease and a person-to-person disease
Answer:
The airborne disease is only similar in the way that you must come in contact with infected air. There is no physical contact needed.
Explanation:
Answer: A. person to person
Explanation:
The graph shows that the disease spreads slowly at first, then rapidly, and slowly at the end. This pattern of transmission is most characteristic of a disease spread from one person to the next. When only one person has the disease, the rate of transmission is slow because that person may only meet a few others. But as the number of people with the disease increases, the number of meetings that spread the disease also increase. At this time, the disease can spread very rapidly. The disease spreads more slowly again when there are only a few people remaining that do not have the disease. With foodborne and airborne diseases, the rate of disease spread is most rapid when the disease first arises and the greatest number of possible victims are available. Graphs of foodborne and airborne transmission show the greatest rate of disease spread at the start of the outbreak.
FYI: This isn't my explanation this is the explanation the question gives! :) YW
HELP!What are the roles of and what happens to chromosomes, centrioles, centromeres, spindle fibers, nucleus and cell membrane during mitosis.
Answer:
Perhaps the most amazing thing about mitosis is its precision, a feature that has intrigued biologists since Walther Flemming first described chromosomes in the late 1800s (Paweletz, 2001). Although Flemming was able to correctly deduce the sequence of events in mitosis, this sequence could not be experimentally verified for several decades, until advances in light microscopy made it possible to observe chromosome movements in living cells. Researchers now know that mitosis is a highly regulated process involving hundreds of different cellular proteins. The dynamic nature of mitosis is best appreciated when this process is viewed in living cells.
Explanation:
What is the effect of paraquat on ATP, NADPH,
and sugar?
Answer:
ATP will increase
NADPH will decrease
Sugar will decrease
Explanation:
Trust, and I just got this answer
The effect of paraquat on ATP, NADPH, and sugar includes the fact that ATP will increase, NADPH will decrease, and sugar will reduce.
Paraquat is also referred to as methyl viologen. It's a toxic chemical which is used as an herbicide for grass and weed control.
Paraquat can cause damage to one's health when it comes into contact with one's mouth or intestines.
It should be noted that biochemical changes that are caused by paraquat in the lungs will lead to rapid and prolonged oxidation of the NADPH. This then leads to the reduction in NADPH as it attempts to detoxify the lipid hydroperoxides. Also, paraquat will lead to an increase in ATP and a reduction in sugar levels too.
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An organism has a haploid number of 36. What is the organism's diploid
number?
What kind of human cells contain the most ribosomes?
Answer:
A mammalian cell contains more than 10 million ribosomes.
Answer-
Mammalian
Reason-
Mammalian cell can contain about 10 million ribosomes.
The three components of RNA are a phosphate group, ribose sugar, and a nitrogenous base
How are the base pairs different?
Answer:
The nitrogenous bases Adenine (A), pairs with uracil (U), while guanine (G) and cytosine (C) pair up.
Explanation:
Nucleotides are monomers that make up DNA and RNA- these are nucleic acids that function as storage, transport and messenger molecules for encoding proteins. Nucleotides contain a 5-carbon deoxyribose (with hydroxyl modifications) or ribose sugar (RNA), phosphate and one of four nitrogenous bases:
Adenine (A)
Guanine (G)
Cytosine (C)
Thymine (T).- DNA only
Uracil (U) found in RNA
Nucleotide monomers derive their names from their bases. Nucleic acid polymers form on a single strand through covalent bonding. This occurs between two nucleotides in an esterification reaction where a phosphodiester bond is formed.
Nitrogenous bases encourage hydrogen bonding, and resulting base pair formation. Adenine (A), pairs with uracil (U), while guanine (G) and cytosine (C) pair up.
16. What explanation can be used to describe the test tube shown?
5 points
A. Water is polar and oil is polar therefore the substances will not mix.
B. Water is nonpolar and oil is nonpolar therefore the substances won't mix.
C. Water is nonpolar and oil is polar therefore the substances will not mix.
D. Water is polar and oil is nonpolar therefore the substances will not mix.
Answer:
Water is polar and oil is nonpolar so the substances won't mix.
Explanation:
Water is polar covalently bonded within the molecule. This unequal sharing of the electrons results in a slightly positive and a slightly negative side of the molecule. oils are nonpolar, so they will remain separate from molecules of a polar solvent such as water.
What would happen to an organism if mitosis did not occur? Check all that apply.
The organism would not be affected.
The organism would not grow.
If an organism were cut or burned, the damaged area would not heal.
The organism would not produce new cells.
Answer:
The organism would not grow.
If an organism were cut or burned, the damaged area would not heal.
The organism would not produce new cells.
Explanation:
Answer:
B-The organism would not grow.
C-If an organism were cut or burned, the damaged area would not heal.
D-The organism would not produce new cells.
Explanation:
i just did it
Explain why plants grown in green light will not grow as fast as plants grown in white light.
Since plants are green, they absorb every color except green, and reflect green away. They can't use the light unless they absorb it.
Bacterial DNA is located in the cytoplasm of the bacterial cell.
Answer: Yes, you are right.
Which statement best describes a dormant plant? *
1.It is in need of food,
2.It is hardy
3.It is inactive
4.It is fast growing
1. In Model 1 a pathogen (virus, bacteria, foreign protein, parasite) has entered the bloodstream ofan individual. Describe the symbol that represents the pathogen.
And if possible answer #3, I will mark brainiest
Complete question:
1. In Model 1 a pathogen (virus, bacteria, foreign protein, parasite) has entered the bloodstream of an individual. Describe the symbol that represents the pathogen.
3. Another type of white blood cell that is involved in the cell-mediated response is a helper T-cell.
a. Draw the symbol that represents the helper T-cell in Model 1.
b. In your drawing above, circle the specialized surface proteins on the helper T-cell.
Answer:
1. The pathogen is the one with the "star-like" symbol
3. a) The helper T-cell is represented like a Circle with the Th wrote inside.
b) The surface protein on the Th cell is the symbol that looks like this ⊥
or T Th cells.
Note: All the symbols are shown in the attached file.
Explanation:
Pathogens: These are invading the bloodstream, so you can see them among the white cells, and too many of them. Macrophages are one of the different types of white globules involved in the organism's defense against strange substances and pathogen agents. These cells are the principal actors in the immune response. Macrophages are the principal phagocytes of tissues, capable of recognizing different strange molecules that penetrate the organism, such as bacterias, parasites, and viruses. Macrophages phagocyte these substances and eliminate them, a process known as phagocytosis. Macrophages also have the capability of inducing an adaptative immune response. Macrophages show the antigens on their surfaces where they are recognized by lymphocytes.Helper T-cell: T-Lymphocytes are in charge of the regulation of the immune system. T-cells are the helper cells that coordinate the initial response in front of the pathogen. There are three types of helper T-cells: TH1 (lymphocyte T helper), TH2, and TH17. TH1 cells are highly effective during the elimination of intracellular pathogens.How are genes passed from parent to offspring?
Answer:
Explanation:
A sperm and an egg each contain one set of 23 chromosomes. When the sperm fertilizes the egg, two copies of each chromosome are present (and therefore two copies of each gene), and so an embryo forms.
What would be the calculated population density for a frog population if there were 100 frogs living in a
pond that covers four square kilometers?
A) 100 frogs per square kilometer
B) 50 frogs per square kilometer
C) 40 frogs per square kilometer
D) 25 frogs per square kilometer
HELPPP PLEASE ASAP!!!!!! Which of the following best describes positive feedback?
A) It causes an effector to signal the control center, which creates the stimulus to make a response.
B) It amplifies a change in a given condition by signaling for a response that increases that change.
C) It produces a response by increasing the set point in the organism’s metabolism.
D) It promotes decreases, rather than increases, in an organism’s metabolism.
Answer:
I think it was b
Explanation:
why do i think this because i have seen it everywhere im about to take the test and i will commet before someone else gets it wrong too.
The muscular system aids in movement but also has three types of muscles. Which muscle below is Not part of the muscular system?
Answer:
what are the awnsers below?
Explanation:
Cocci bacteria are atrichous?
Answer:
Yes
Explanation:
A) Atrichous is ur answer.. Since cocci bacteria are those bacteria which are oval or spherical in shape.
Why can't the air just rise and go up?
it's sinking
it's spinning
Air does rise and go up. For example, hot air rises because when you heat air (or any other gas for that matter), it expands. When the air expands, it becomes less dense than the air around it. The less dense hot air then floats in the more dense cold air much like wood floats on water because wood is less dense than water. keep this in consideration though, as the hot air cools and sinks back to the surface of the earth, there it gets warmed by the ocean only to rise again. This is called a convection current. In conclusion, air does indeed rise and go up.