Given what we know about the behavior of gases like helium, we can confirm that the small tank of helium was able to fill so many balloons because the helium expanded to fill its new container, which is the balloon.
Helium is a chemical element known as a noble gas. Like all other elements in a gaseous state, the atoms that comprise helium are spaced apart. This allows the gas to be compressed, a property that manufacturers of the gas take advantage of since they can compress a large amount of gas into a small container.
This is precisely what is happening in the question. The small tank of helium, despite being small in size, contains a large amount of compressed helium gas. Therefore, once it is released from the container, the gas expands to fill its new container, which in this case is the balloons, because of this, a relatively small tank of helium was able to fill many large balloons.
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(compound microscope)
1. Put a table lamp in front of the?
2. Put a low-power (, e.g., x5) ________into
the microscope.
3. Rotate a low-power (e.g., x4)
______________into position.
4. Look through the eyepiece. Adjust the __________________ until you see a bright circle of light.
5. Place a slide on the _________, and fix it with the __________. The ___________ on the slide should be right above the hole of the stage.
6. Look at the microscope from the side. Turn the ______
carefully to lower the objective until it is very close to the ________.
7. Look through the eyepiece. Turn the coarse
adjustment knob to raise the objective slowly until
you can see an __________ of the specimen.
7. Turn the ________ to get a sharper image. The image is now in focus.
Choices: microscope, eyepiece, objective, coarse adjustment knob, slide, specimen,
mirror, stage, clips, fine adjustment knob, image
In this exercise it is necessary to fill the gaps with the correct given word. So, the right order of words will be:
1. microscope
2. eyepiece
3. objective
4. mirror
5. stage
6. clips
7. specimen
8. coarse adjustment knob
9. slide
10. image
11. fine adjustment knob.
So, after filling all the gaps, the text and, consequently, the final answer will be:
1. Put a table lamp in front of the microscope.
2. Put a low-power (, e.g., x5) eyepiece into the microscope.
3. Rotate a low-power (e.g., x4) objective into position.
4. Look through the eyepiece. Adjust the mirror until you see a bright circle of light.
5. Place a slide on the stage, and fix it with the clips. The specimen on the slide should be right above the hole of the stage.
6. Look at the microscope from the side. Turn the coarse adjustment knob
carefully to lower the objective until it is very close to the slide.
7. Look through the eyepiece. Turn the coarse adjustment knob to raise the objective slowly until you can see an image of the specimen.
8. Turn the fine adjustment knob to get a sharper image. The image is now in focus.
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Complete the following sentence: Environmental science can answer questions about _____________by analyzing and observing the world and testing ideas about it. physical laws moral values philosophy and art natural phenomena
Answer:
d
Explanation:
Environmental science can answer all the questions about natural phenomena by analyzing and observing the world and testing ideas about it. Thus, the correct option is D.
What is Environmental Science?
Environmental science is an interdisciplinary academic field of science which integrates different disciplines such as physics, biology, and geography to the study of the environment as a whole, and the solution of environmental problems. Environmental science has emerged from the fields of natural history and medicine during the Enlightenment period.
Environmental science has the ability to answer all the questions about the natural phenomena by the analysis and observation of the world and by testing the ideas about it.
Therefore, the correct option is D.
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#SPJ2
___________1. Variety of species and abundance of species
___________2. Refers to the heterogeneity present in the world or a habitat,
ranging from macromolecules within the cells to biomes
___________3. Plant or animal that exist in small numbers
___________4. It is the loss of species
___________5. Species in danger of extinction
___________6. Number of different species present in an ecosystem
___________7. Relative abundance of individuals of each of those species
___________8. Refers to the role of that a species play in its ecosystem
___________9. They serve as biological smoke alarms
__________10. The world’s largest coral reef
__________11. Also known as the four major causes of loss of diversity
__________12. The process during which a large expanse of habitat is
transformed into a number of smaller patches of smaller
total area
__________13. Species that are introduced accidentally or intentionally
__________14. Also called overharvesting
__________15. They have broad niches
The Middle East and Eurasia (primarily Russia) have about 70% of the world's
Select one:
Оа.
natural gas reserves.
on
O b. coal reserves.
O coil reserves.
O d. peat reserves.
a. Natural gas reserves
What is the science in which earthquakes are studied called?
A. Plate Tectonics
B. Earthquake Science
C. Wave Science
D. Seismology
Answer:
D. Seismology
hope helpful <3
Answer:
D. Seismology
Explanation:
Seismology is the scientific study of earthquakes and the propagation of elastic waves through the Earth or through other planet-like bodies.
Hope this helps :)
why do polygenic traits show bell curves in variation
Answer: because there are multiple genes that play a role in the phenotype, and each gene could have multiple alleles. This can give a range of possible phenotypes from all the variation that's coming into play here.
Which of the following is true of gravity?
1 it is a pulling force
2 it holds objects in orbit
3 it is a bending of space
4 it can alter the path of light
5 all of the above
Answer:
5. All of the above
Explanation:
Hope this helps!
Adolescent may conform with peers out of fear of
A. Becoming depressed.
B. being arrested.
C. establishing a new identity.
D. being disliked
E. Other
Where are materials stored in single celled organisms?
Answer: Ribosomes most of the time.
Explanation:
All members of a species living in the same location are called a
population
genus
community
ecosystem
Answer:
population is the best answer
HELP PLEASE! TY
A. How are radio waves used to create radar maps?
B. How does reflectivity help meteorologists figure out the weather shown on
radar maps?
A. These signals have been calibrated against actual visual and location readings for the amount of rain falling and cloud water content.
B. Reflectivity of an object helps indicate the amount of water that a cloud may carry. The stronger the reflected signal from the radar signal sent out, the easier the meteorologist will be able to tell what to expect.
I hope i helped! :D
. A kidney cell is an example of which type of cell?
a. somatic cell
b. germ cell
c. sex cell
d. haploid cell
Answer:
A. Somatic cell
Have a good day!!!
Explanation:
Please, help! If you don't know, please don't give me the wrong answer.
Answer:
Option C
Explanation:
The hydrogen atom in the water bond to the hydrogen atoms in the air create a greater surface tension than most other liquid..
PLEASE MARK ME AS BRAINLISTAnswer:
C
Explanation:
unequal sharing of electrons between the atoms and the unsymmetrical shape of the molecule means that a water molecule has two poles - a positive charge on the hydrogen pole and a negative charge on the oxygen pole.
HELP................
Answer:
Active Transport
Explanation:
If Adam and Eve were the only people on earth first ,then does that mean every one is like your 5,000th cousin?
Answer:been isolated for more than 1250 years (which would render the proposition false at a conservative rate of 4 generations per century)? Quite possibly. They don’t, for example, have any form of agriculture or even a means to make fire, and their language is unintelligible. Chances are you have no recent (a few hundred, generations at least) Sentinelese relatives.
Explanation:
Spindle fibers are composed of which type of protein?
Answer:
Hey there. The answer should be Tubulin.
Explanation:
Spindle fibres are formed from microtubules which are made up of a protein called Tubulin.
how are lymphatic capillaries different from blood capillaries?
Answer:
Lymphatic Capillaries are slightly larger in diameter than blood capillaries, and have closed ends (unlike the loop structure of blood capillaries). Their unique structure permits interstitial fluid to flow into them but not out.
Explanation:
What observations did charles darwin make about finches in the galápagos islands?
Answer:
He noticed that each finch species had a different type of beak, depending on the food available on its island. The finches that ate large nuts had strong beaks for breaking the nuts open.
Donde termina el impulso nervioso y que accion origina?
Por favor necesito ayuda con esto, yo ya respondí la parte de donde termina pero donde de verdad necesito ayuda es en la acción que origina, y gracias de antemano.
Answer:
Un impulso nervioso comienza cuando una neurona recibe un estímulo químico. El impulso nervioso viaja a través de la membrana del axón como un potencial de acción eléctrico hasta el terminal de axón. El terminal de axón libera neurotransmisores que llevan el impulso nervioso a la siguiente célula
Explanation:
please Mark my answer in brainlist
describe the negative impacts to an ecosystem of large-scale monocultures of crop
plants and of intensive livestock production
Answer:
CHECK THIS LINK YOUR QUESTION WILL BE ANSWERED.
https://www.goconqr.com/mindmap/4978927/negative-impacts-on-an-ecosystem-of-large-scale-monocultures-of-crop-plants
Explanation:
how many sperm are produced in the testes each day?
Answer:
300 million..........
True or false: In a typical mammalian adult cell, the M phase takes up a large fraction of the entire cell cycle.
Answer:
True
Explanation:
Hope this helps! :D
where is the electron transport chain located?
Answer: inner mitochondrial membrane
Explanation:
I got asked this question <3
Suppose white and brown fur in a species of rodent were due to different alleles at the same gene. An F1 cross between true breeding brown and white lines is set up. What evidence would best support white fur being dominant to brown
An F1 cross between true breeding brown and white lines is set up. What evidence would best support white fur being dominant to brown -----
The best evidence to show that white fur being dominant is when all the offspring after the cross are white instead of brown
They are therefore expected to produce heterozygous lines.
The evidence that would best support white fur being dominant is when all the lines produced are white despite being heterozygous.
A dominant trait is known to mask the expression of other traits.
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If there is oxygen around, how will muscle cells make ATP?
Answer:
Muscle cells can continue to produce ATP when oxygen runs low using lactic acid fermentation. ... Many yeast use alcoholic fermentation to produce ethanol
pls help
When new bonds form, energy is __________.
released
disconnected
gone
stored
Answer:
When new bonds form, energy is 'released'
What happens to the genetic material before the cell divides
Because each chromosome is made from a single molecule of 'DNA', before a cell divides itself, it had to replicate and copy its DNA. This makes it so that after cell division, each new cell holds an exact copy of the genetic material from the original cell.
I hope this helps! :)
The graph above shows the initial rate of an enzyme-catalyzed reaction at
different substrate concentrations in the presence of a constant
concentration of the enzyme.
Connect the primary structure of the enzyme to its overall shape.
The overall shape of an enzyme changes after the attachment with the substrate.
Enzymes are proteins composed of amino acids that linked together in one or more polypeptide chains. This sequence of amino acids in the form of polypeptide chain is known as the primary structure of an enzyme.
The tertiary structure is the enzyme's overall three dimensional structure, which occurs due to interactions between the R groups of the amino acids that make up the protein and the active sites of the substrate with which the enzyme can attach so we can conclude that the overall shape of an enzyme changes after the attachment with the substrate.
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The primary structure of enzymes determinies their functions and their secondary and tertiary structures. R groups remain in the center of the molecule and stabilize the structure.
--------------------------
To answer this question, we need to remember that enzymes are proteins, and hence, they share many properties. From now on, we will refer to the enzyme as proteins or molecules.
AMINO ACIDSAmino acids are organic molecules. They are composed of a central carbon, one hydrogen atom, one carboxyl group (COOH), one amine group (NH2), and one R group.
The composition of the R group is what makes them different from each other.
PROTEINS -enzymes-Proteins are amino acid polymers linearly arranged and connected by peptidic bonds. These molecules characterize by their different structures.
The peptidic bond is the union of two amino acids by their carboxyl and amine groups.
The R group of each amino acid is involved in stabilizing the molecule through their interactions.
The amount of amino acids that compose the polypeptide and their order in the chain determines the primary structure of the protein. The primary structure of the proteins determines the tertiary one.
Protein functions also depend on the aminoacids sequences. Proteins with different functions have different sequences. And among species, proteins with similar functions have similar structures.
PROTEIN STRUCTURE
The primary structure refers to the sequence in which the amino acids are arranged in the chain.
The secondary structure is the folding that the polypeptide chain adopts thanks to the formation of hydrogen bonds.
The three-dimensional structure makes them even more stable in the environment and capable of properly accomplishing their biological role.
When proteins are composed of more than one polypeptide subunit, they arrange in a fourth structure, named quaternary structure.
The hydrophilic R-groups remain in the center of the molecule, facing the protein interior, and avoiding interaction with water.
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5. What is the role of DNA poly-
merase in DNA replication?
Answer:
DNA polymerase (DNAP) is a type of enzyme that is responsible for forming new copies of DNA, in the form of nucleic acid molecules. ... DNA polymerase is responsible for the process of DNA replication, during which a double-stranded DNA molecule is copied into two identical DNA molecules.
You do NOT have a pair of which of the following organs?
A. Lungs (plural)
B. Ureters (plural)
C. *Urinary bladder (singular and we have only one of these)
D. Kidneys (plural)
how did this question possibly violate any guidelines?
lets see if this question stays put this time.
Quiz let is better
Answer:
c. Urinary bladder is correct
Explanation: