Answer:
To determine the flask on basis of the molarity or concentration of the solutions, an individual should design an experiment with the help of using water and dialysis tubes. Dialysis tubes up should be filled with pure water, then seal or closed them from both ends.
Measure the weight and note the mass of each tube, student should stick label the cups with the solutions. Weighing the solutions after leaving them for 8 to 10 hours. The tubes would lose weight as water leave the tube when placed in the solutions due to the principle of diffusion- movement.
The measure of the chemical constituents of the specific solute in a solution is called molar concentration.
For the determination of the flasks based on the molarity and concentration, the experiment should be designed based on dialysis tubes and water.
The dialysis tubes should be filled with pure water and both the ends of the tubes should be sealed.The tubes should be measured and marked. Place the tubes into the solutions and after leaving them overnight weigh them again.The weight of the tubes will decrease because of the flow of water.Therefore, due to diffusion movement, the tubes will lose weight and the concentration of the flasks can be determined.
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What type of solvent would dissolve a nonpolar solute
Answer:
Explanation:
For example, ionic compounds, which are very polar, are often soluble in the polar solvent water. Nonpolar substances are likely to dissolve in nonpolar solvents. For example, nonpolar molecular substances are likely to dissolve in hexane, a common nonpolar solvent.
Answer:
Explanation:
Like dissolves in like, so only non-polar solutes can dissolve in non-polar solvents.
Why is a cell membrane so important
Answer:
-provides protection for a cell
-provides a fixed environment inside the cell.
-The cell membrane also provides some structural support for a cell.
Explanation:
Answer: The cell membrane is very important because it provides mainly all the protection over the cells. It’s flexibility also helps a LOT!
Which diagram correctly shows how heterozygous alleles are found on homologous chromosomes?
Answer:
The answer is I think D
Explanation:
The diagram that correctly shows how heterozygous alleles are found on homologous chromosomes is ; Aa ( The first diagram )
Heterozygous alleles are different alleles gotten/inherited from the genes inherited from each parent cells ( i.e. from each parent ). while
Homologous chromosome is a pair of chromosomes containing same gene sequence, chromosomal length and posses the same centromere location in each chromosome in the pair.
Hence we can conclude that The diagram that correctly show how heterozygous alleles are found on homologous chromosomes is the first diagram ( Aa ).
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what element must a molecule contain to be considered organic?
Organic compound, any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen. The few carbon-containing compounds not classified as organic include carbides, carbonates, and cyanides.
hope this help!
A total solar eclipse is not viewable from everywhere on the side of Earth facing
the sun. Why not?
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the answer is down below
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Answer:
The Moon is smaller then the Sun and Earth, its shadow isn't very big. Some places on the planet get to witness this event. People who lives on the sunny side of Earth cannot see the solar eclipse. People who lives in the moon's shadow can see the solar eclipse, while other peers miss it.
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What do proteins nucleic acids and carbohydrates all have in common?
a. they all use peptide bonds to form macromolecules
b. they're all made of chains of amino acids
c. they all contain the instructions for building organisms
d. they're all formed from the same elements
What are the two main proceses of the carbon cycle?
Answer:
this chart will help!
Explanation:
Why is phosphorus important to living things?
The lab setup shows four test tubes. Tube 1 contains water only. Tube 2 contains a live snail. Tube 3 contains a live green water plant. Tube 4 contains both a live green water plant and a live snail.
In this setup, which tubes contain at least one organism carrying on cellular respiration?
A) Tubes 1 and 2 only.
B) Tubes 2 and 4 only.
C) Tubes 3 and 4 only.
D) Tubes 2, 3, and 4 only.
Answer:
I would assume D
Explanation:
Tube 1 doesn't contain an organism so it can't be that one. Both a snail and a plant are considered an organism, and cellular respiration occurs in almost any organism's cells
Answer: D) tubes 2, 3, and 4, only
Explanation:
I got this question on a test and got it right:)
1. Why were populations able to get so big? What happened that allowed this to happen?
2. What do you think will happen if the populations of humans continued to increase
3. What could happen that could limit the population or cause it to decrease ( Stop growing )
Answer:
1. reproduction
2. we could run out of food as not enough is produced fast enough
3. lack of food, women and men who are infertile or diseases which can kill people
The tendency to view one's own culture or group as superior to others.
ideology
reformulation
internalization
self-fulfillment
narcissism
ethnocentrism
True or false
Answer:
ETHNOCENTRISM.. . the tendency to view one's own culture and group as superior to others.
What happens when a gene is expressed?
the gene is mutated
the gene dies
the gene is able to specialize
the gene duplicatesexactly
Answer:
Gene expression is the process by which the information encoded in a gene is used to direct the assembly of a protein molecule. The cell reads the sequence of the gene in groups of three bases.
Explanation:
Answer:
lol
Explanation:
1 and 2
List the seven characteristics that Mendel investigated in pea plants.
Answer:
Mendel studied the inheritance of seven different features in peas, including height, flower color, seed color, and seed shape.
Naturally formed features on the surface of the earth are called ___________?
Answer:
landform
A landform is a natural or artificial feature of the solid surface of the Earth or other planetary body. Landforms together make up a given terrain, and their arrangement in the landscape is known as topography.
Answer:
LandformsHope this helps you
Stay happy and safe ✌️
The disruption of which cell function leads to gene mutations that result in cancer?
DNA replication
RNA transcription
RNA translation
protein synthesis
Answer:
its the first one dna replication !!
On opening night, a movie theater sold
$1,712 in tickets for the first showing.
If each ticket cost $8, how many tickets
were sold?
Answer:
214
1712 / 8 = 214
.A substance from outside needs to reach genes in the cells of your body. In which order will it encounter different parts of the cell? cell wall -- cell membrane--- nuclear membrane ---cytoplasm—gene cell membrane--- cytoplasm –gene cell membrane--- cell wall ----cytoplasm---- nuclear membrane---- gene cell membrane -----cytoplasm----- nuclear membrane----- gene
Answer:
cell membrane -----cytoplasm----- nuclear membrane----- gene
Explanation:
A cell is made up of three part this include the cell membrane, the cytoplasm and the nucleus.
cell membrane encloses the cells and it prevent external material from getting inside the cell while the nucleus is formed by a nuclear membrane around a fluid nucleoplasm. chromatin in the nucleus contain deoxyribonucleic acid (DNA) which is the genetic material of the cell.
The cytoplasm is fluid found in the cell. It is gel like in nature and a medium for chemical reaction.
cell membrane -----cytoplasm----- nuclear membrane----- gene
The arrangement will be a cell membrane for protection followed by the cytoplasm thatbis located in between the cell membrane and the nucleus then the nuclear member found around the nucleus. The nucleus contains the DNA which is the genetic information of an individual gene.
The compound in cells that works almost like a battery is
Answer:
Adenosine triphosphate (ATP)
Explanation:
Cellular energy is primarily trapped and stored in the form of adenosine triphosphate or ATP. A tremendous amount of ATP is needed for normal cellular growth.
Where are carbohydrates found and what is their purpose/function?
Answer:
Carbohydrates are found in a wide array of both healthy and unhealthy foods—bread, beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks, corn, and cherry pie. They also come in a variety of forms. The most common and abundant forms are sugars, fibers, and starches.
...........................
The four primary functions of carbohydrates in the body are to provide energy, store energy, build macromolecules, and spare protein and fat for other uses.
PLEASE HELPPPPPPPPPPP
Answer: The grease helped the loosen the chain. This is because of increased friction, and also because a rusty and dirty chain also means a rusty and dirty gear set and drive train, and imprecise shifting.
Explanation:
Write for each one if it is quantitative or qualitative.
1. The first plant specimen had three more leaves than the second specimen.
2.The leaves on the first plant specimen appeared healthier.
3. The leaves on the first plant specimen were green, while the leaves on the second plant specimen were turning brown.
4. The flower face turned seventy degrees to follow the sunlight during the daytime.
5. The plants were observed over a period of ten days.
6. Each plant produced an average of four ounces of seeds.
7. The petals on the second plant were shriveled around the edges.
8. The first plant grew one inch taller than the second plant.
9. Each plant produced fragrant blossoms.
10. The second plant showed a decreased growth rate.
Answer:
Solution:
1. quantitative
2. qualitative
3.qualitative
4. quantitative
5. quantitative
6. quantitative
7. qualitative
8.quantitative
9. qualitative
10. qualitative
An area that has a lower solute concentration than another location
The scientific method is
a way scientist make problems and ask questions
a way scientists think about the worlds problems
a ways scientists never solve problems
a way scientists answer questions and solve problems
biomolecules include lipids,proteins,carbohydrates and nucleic acids.
Answer:
Biomolecules are an organic molecule that includes carbohydrates, protein, lipids, and nucleic acids. They are important for the survival of living cells.
Explanation:
A biomolecule or biological molecule is a loosely used term for molecules present in organisms that are essential to one or more typically biological processes, such as cell division, morphogenesis, or development.
Now whats the question to this statment?
a. List 3 other species that would be
the same trophic level as the grasshopper.
Answer:
rabbits, flies and cows, for example
Explanation:
Because they only eat autotrophs (plants)
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Explain why organisms that have a narrow temperature tolerance range will be more susceptible to climate change.
Answer:
Organisms that have a narrow temperature tolerance range cannot survive in a wide variety of temperatures. Even small changes in climate can affect organisms that do not have a high tolerance for change. These organisms will be forced to adapt, relocate, or die off. If climate change is widespread, such organisms may not be able to survive.
Explanation:
edg2020
These organisms are known as stenothermal , since they are restricted to narrow range of temperature, any change in temperature would affect them significantly.
What are stenotherms?A stenotherm is a species or living organism only capable of living or surviving within a narrow temperature range. The opposite is a eurytherm, an organism that can function at a wide range of different body temperatures.
Stenothermal creatures require environments that maintain a constant temperature throughout the year in order to survive. They can only function within a very specific temperature range. Polar regions and tropical regions both have a temperature range that is rather small.
Crustaceans, insects, salmon, penguins, pythons, and other animals, such as these, are all examples of stenothermal species.
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Which of the following is a TRUE statement about the differences between prokaryotic
and eukaryotic cells?
a. Eukaryotic cells contain a plasma membrane and cytoplasm, but prokaryotic cells
do not
b. Prokaryotic cells contain a nucleus and eukaryotic cells do not
C. Prokaryotic cells lack organelles, but eukaryotic cells possess organelles
d. All of the above are true
Answer:
B
Explanation:
The statement that gives the differences between prokaryotic and eukaryotic cells as regards this question is B: Prokaryotic cells contain a nucleus and eukaryotic cells do not.
Eukaryotic cells can be regarded as a cell that posses membrane-bound nucleus, while prokaryotic cell can be regarded as cells that doesn't posses a membrane-bound nucleus.Examples of organisms that can regarded as a eukaryotic are ; protists, fungi and plants, while that of prokaryotic cells are; bacteria and cyanobacteria archaea.Therefore, option B is correct.
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What would the density be of an object that has a mass of 50 g (grams) and a
volume of 10 ml (milliliters)?
Answer:
5
Explanation:
D=m/v
D=50/10
D=5
The density of an object that has a mass of 50 g and a volume of 10 ml would be:
Density = Mass / Volume
= 50 g / 10 ml
= 5 g/ml
What is density?Density is a measure of the mass of an object per unit of volume. It is a characteristic property of a substance and is often used to identify and classify materials. The density of an object can be affected by a variety of factors, including its composition, temperature, and pressure.
In general, denser materials tend to be heavier and more compact, while less dense materials tend to be lighter and less compact. For example, a substance with a high density, such as gold, will be much heavier than a substance with a low density, such as air.
Overall, the density of an object can be useful for understanding its physical properties and how it will behave in different situations.
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I need these answers before 12am tonight PLS HELP Me
Answer:
It says in the drawing guidelines you shouldn't cross labels and should be ivlnclude the magnification value. And all labels should be horizontal, and isn't followed when labelling nuclear membrane(so u can circle nuclear membrane, and write why it should be horizontally labelled)
What are organism that break down dead organism called
Answer:
Decomposers
Explanation:
Answer:
Decomposers
Explanation:
they get energy by eating them