Guys pls help me!
Students investigate how onion cells react to salt (NaCl) solutions of different concentrations. They observe onion cells in three salt solutions under a microscope
The image of an onion cell in a 3% salt solution is shown.
Onion Cell in 3% Salt Solution
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Answer:
I'm not sure but maybe for the first it's less than 3% and for the second it's equal to 3%?
Explanation:
Related Questions
What are the organs in the circulatory system
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Answer:
The circulatory system consists of three independent systems that work together: the heart (cardiovascular), lungs (pulmonary), and arteries, veins, coronary and portal vessels (systemic). The system is responsible for the flow of blood, nutrients, oxygen and other gases, and as well as hormones to and from cells. PLEASE HELP MEEE
Cells that can differentiate into a variety of cell types are called _____
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Answer:
pluripotent
Explanation:
A cell that can differentiate into all cell types of the adult organism are called
"pluripotent". Like cells are named meristematic cells in higher plants and embryonic stem cells in animals, though some groups report the presence of adult pluripotent cells.
Why is the nucleus considered the command center of the cell?
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Answer:
A
Explanation:
find the kinetic energy of a ball of mass 200 grams moving at a speed of 20m/s
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Kinetic Energy KE = ½ mv^2 where m is mass and v is velocity
Actually, v is a vector quantity, so KE = ½ mv•v
The dot product of 2 vectors a and b is abCosθ where θ is the angle between the vectors.
Obviously v•v = v^2 Cos0 = v^2
In this case, we have KE = ½ (0.2)(20^2) = 40kg-m^2/s^2 = 40J
So we have kinetic energy in the amount of 40 Joules.
Answer is 40J...............
Do you guys know the answer????
Answers
Answer:
X=16
Explanation:
We would need to convert the whole number (5) into a fractIon. By doing this, we multiply 5 by 3 to get 15. We also must add in the 1 form the 1/3 in the 5, getting 16 for a total, then Adding 16 to the whole equation would be 16/3 or x=16
A student experiments with two solutions containing the same solute concentrations
in a beaker that is divided by a semipermeable membrane, as shown.
In which direction will the water move so that the concentrations of the solutions
remain constant on both sides of the membrane?
A in both directions at different rates
B in both directions at the same rates
C toward the right side of the beaker
D toward the left side of the beaker
Answers
Answer:
B in both directions at the same rates
Explanation:
Solutions with the same amount of solute concentration is referred to as ISOTONIC. In an isotonic solution, there is NO net movement of water molecules because there is no osmotic gradient i.e. difference in solute concentrations.
In this case, a student experiments with two solutions containing the SAME SOLUTE CONCENTRATIONS in a beaker that is divided by a semipermeable membrane. Due to the equal amount of solute concentrations in both solutions, water moves into and out each membrane at an equal rate.
In order for the concentrations of the solutions to remain constant on both sides of the membrane, WATER MUST MOVE IN BOTH DIRECTIONS AT THE SAME RATE.
Most of our dreams are about __(blank)__.
a) every day things and problems
b) childhood experiences
c) strange and unusual objects
d) repressed memories
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what happens during telophase ll
SELECT THREE OPTIONS
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Answer:
During telophase, nuclear membrane forms around each set of chromosomes. This separates the nuclear DNA from the cytoplasm. The chromosomes then start to uncoil becoming diffuse and less compact.
Explanation:
hope this helps!! <3
Answer:
nuclear membrane forms
Explanation:
i got it right
Early civilizations made pottery as functional and decoritave objects.they used geometric and free flowing designs.what design was especially important in ancient pottery? A) circle B) square C) spiral D triangle if this gets annoying sorry dudes and dudettes
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Answer:
most potteries were Circular, Such as in Egypt they had slavery, but it wasn't like European slavery. They would grow their farms to provide for their families. one main way was to carry water back for their crops in circular plates and vases.
You could say Egyptian slavery wasn't slavery. it was mainly just everyone fending on their source of crops. And everyone could sell their crops for more produce.
Explanation:
Answer choice: Circle
Give two reasons why photosynthesis in plants slows down then stops during the fall then winter.
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Answer: In the winter and fall there is less sunlight and there is less rain
There is a decline in photosynthesis after the sun sets in the winter and fall seasons. There is a decline of the enzymes in the plants that are responsible for the biochemical reaction.
These don't tend to work so so well during the winter cold winds blowing slows down the plant respiration process and hence the less photosynthesis to for the plants. Hence few sugars are not turned into metabolism.Learn more about why photosynthesis in plants slows down.
https://brainly.com/question/1050630.
If Jamal does not sleep for four days straight, he will most likely experience __(blank)__. a) jet lag
b) psychopathic behavior
c) hallucinations
d) REM
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Answer:
b? ig I mean u could experiance all, but this is an 8th grader talking what do i know?
Explanation:
Cyanite (Al2SiO5), quartz (SiO2), and leucite (KAlSi2O6) may be grouped together because they are all part of the largest mineral group called:
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Answer:
Explanation:
Cyanite, quartz and lucite are all part of the potassium mineral group
The study of chemicals and bonds is called chemistry.
The correct answer to the question is potassium.
What are minerals?A mineral or mineral species is, broadly speaking, a solid chemical compound with fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form. The geological definition of mineral normally excludes compounds that occur only in living beings.According to the question, all these minerals belong to the potassium group.
For more information about the minerals, refer to the link:-
https://brainly.com/question/14688752
Write 3 things you know about the Carbon Cycle.
Pls help ASAP!
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Answer:
Carbon moves from living things to the atmosphere.
Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms.
Carbon moves from fossil fuels to the atmosphere when fuels are burned. ...
Explanation:
Explain how different TYPES OF ORGANISMS defend themselves against microorganisms. (6 marks)
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21. Where is this energy stored in glucose?
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Answer:
Glucose is a type of sugar, which obv is food.
Explanation:
Glucose is energy
Hope This Helps.pls mark brainliestWhich of the following statements is TRUE?
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Answer:
B: Hyperosmotic solutions may cause the cell to shrink.
Explanation:
explain why the suspension of isolated chloroplasts became alkaline when illuminated?
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Answer:
Yes, protons are pumped across the membrane, but flow right back again through the ATP synthase. More important is that illumination is required for carbon fixation. As photosynthesis runs, the chloroplasts remove CO2 from the water they are suspended in. In solution, CO2 forms carbonic acid, so removing CO2 will reduce the level of carbonic acid, raising the pH.
Explanation:
Chloroplasts are the primary cell organelles involved in the conversion of light energy into stable chemical energy through photosynthesis. The chloroplasts will become alkaline due to a rise in pH and a reduction in carbon dioxide.
Chloroplast is the green-colored cell organelle, primarily involved in the conversion of light energy into chemical energy.
When the isolated chloroplasts are illuminated, the suspension in which chloroplasts are suspended becomes alkaline. It is assumed that protons are pumped in from the medium to the thylakoids.
As photosynthesis takes place, the chloroplasts remove carbon dioxide from the suspension, which causes an increase in the pH of the suspension.
Therefore, the formation of carbonic acid from the CO2 will raise the pH.
To know more about the chloroplasts, refer to the following link:
https://brainly.com/question/9328266
-Salicylic acid is a naturally occurring chemical produced in willow trees.
Salicylic acid is used by humans in some acne products to kill bacteria that
cause skin irritation
Based on this information, what stimulus most likely causes willow trees to
increase the production of salicylic acid?
Freezing conditions that damages leaves
Changing seasons with less direct sunlight
Damage to the bark of the tree trunk
Exposure to pathogens in the vascular tissue
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Answer: D on eduphoria
Explanation:
Would you say cells, bacteria, algae, plants, or animals are the basic units of life? Explain why you think so.
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Part D)
Think about pushing two boxes of different weights across the floor-one box is a lot heavier than the other box. How will the amount of force change as you push each box? Explain how this relates to energy expenditure of two people-one person who's heavler than the other.
This is on plato and edmentrum. :)
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Answer:
More force is needed to push the heavier box. Likewise, people who weigh more use more energy to move their bodies than people who weigh less.
Explanation:
copied directly from edmentum/plato
Answer:
More force is needed to push the heavier box. Likewise, people who weigh more use more energy to move their bodies than people who weigh less.
Explanation:
what adaptations facilitated movement of tetrapods to land - be sure to describe challenges that these adaptations helped them overcome.
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Answer:
The second neck vertebra evolved to allow rotation of the neck for moving the head left and right. As tetrapod species continued to evolve on land, adaptations included seven or more vertebrae, allowing increasing neck mobility.
Explanation:
10. Which respiratory condition below correctly describes what happens during pneumonia? A. The alveoli become damaged and enlarged . O B. The airways become swollen and inflamed . C. The alveoli in the lungs fill with fluid. D. The airways restrict in response to an invader.
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Answer:
the alveoli in the lungs fill with fluid
Which of the following is the function of plant leaves ?
A. Erecting the plant above the ground
B. Providing the attachment of climber plants
C. Absorbing water and mineral from the soil
D. Involves in the process of photosynthesis.
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Mixture is the combination of some elements or compound that is formed( )
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Answer:
....by physical combination.
Explanation:
.....
Answer:
Mixtures are physical combinations of two or more elements and/or compounds. Mixtures can be classified as homogeneous or heterogeneous. Elements and compounds are both examples of pure substances. Compounds are substances that are made up of more than one type of atom.
Explanation:
What happened when there was not enough carbon dioxide in the atmosphere to trap the sun's heat about 600 mya?
Answers
Answer:
Decreased Temperatures
Explanation:
Because carbon dioxide traps heat in the atmosphere, a lessening of atmospheric carbon dioxide concentrations would mean that more heat could escape into space. This would result in a net decrease in the Earth's average temperature, assuming other factors remain the same.
For this assignment, you will first make a model of a DNA strand using pop beads. This DNA strand
codes for a protein, which determines a trait in an organism. Next, you will change the base sequence of
your model in three ways to show how mutations occur. Then, you will compare the base sequence of the
mutated models to sequences on a key provided by your teacher to find out whether the mutated strand
creates a protein that is beneficial, harmful, or neutral. Finally, you will answer some questions to
summarize what you have done in this project. The Student Worksheet on the last few pages of this
document will help you complete your assignment.
Background Information
DNA is the genetic material passed from parent to offspring. It is an important molecule because it carries
instructions used for producing proteins. These proteins determine how an organism looks and functions.
DNA is a double-helix molecule. The two sides of the molecule, its backbone, are made of sugar
molecules and phosphate molecules. These sides are connected by rungs made of nitrogen bases. The
nitrogen bases of DNA are adenine (A), thymine (T), cytosine (C), and guanine (G).
A gene is a segment of DNA that codes for a specific trait. The sequence of nitrogen bases in a gene is
copied from DNA into a strand of RNA in the nucleus of a cell. The RNA then moves out of the nucleus to
the ribosome. The ribosome uses the information that RNA copies from DNA to produce proteins that
have specific shapes and functions. The shapes of proteins help them perform their job. If the shape of
the protein is changed, the protein may not be able to perform its function. A mutation, which is a
permanent change in the DNA sequence in a gene, may change the shape of the protein it codes for.
Types of mutations include substitution, insertion, and deletion. The effects of mutations on organisms
may be beneficial, harmful, or neutral.
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Answer:
This type of mutation occurs when one or more base pairs are added to the gene sequence.
✔ insertion
This type of mutation occurs when one or more base pairs are removed from the gene sequence.
✔ deletion
This type of mutation occurs when one or more base pairs take the place of other base pairs in the gene sequence.
✔ substitution
Question:
Do you remeber the answer you turned in for this? If you do, can you please give it to me????? That would help a lot
The genetic makeup you inherited from your parents is your genotype. Scientists also use the word phenotype. Pheno means “visible” or “seeming.” Based on this explanation, what do you think phenotype means? PLZ HELP!!!
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Answer:
Explanation:
We can inherit from our parents a lot of visible traits that can be observed with the naked eye. A phenotype is something that an individual organism got from its parents but we can observe it just by looking at it. This can be many things such as height, wing size, hair color, eye color, curly hair, and so on.
Answer:
visible traits
Explanation:
Please help!!! Which two processes provide the glucose and nitrogen used to form amino acids in plants?
A. cellular respiration and the citric acid cycle.
B. photosynthesis and nitrate absorption.
C. photosynthesis and dehydration synthesis.
D. glycolysis and nitrate absorption.
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Answer:
C.
Explanation:
Just done it. Got it wrong but i saw the correct answer. Probably to late for yuh lol but oh well. :)
Answer:
B
Explanation:
photosynthesis and nitrate absorption is the correct answer from the quick check :)
Help Please! Thank you!
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what are the similarities between the first quarter moon and the third quarter moon
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Answer:
what are the answer choices