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
Answers
Answer:
Less than 3%
Explanation:
I'm guessing that since the solution has a concentration of less than 3%, the water would go into the cell to maintain which would make it expand.
Onions cells can react in different ways when place in any solution. The image of an onion cell are said to be:
The first image is greater than 3% The second image is greater than 3%.
When the salt water is added to the onion tissue, cytoplasm pulls away in course of time from the cell wall. So, due to that, water begins to leave the onion cell where it was more highly concentrated to the area where it was less concentrated.
Onion cell does not burst when placed in a hypotonic environment due to the fact that it has strong cell wall, which hinders the burst from taking place.
Onion peel often shrinks in salt solution when water from cells cytoplasm moves out of the cell.
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"An advantage of ______ reproduction is that a genetic disorder in a parent might not affect The offspring
Answers
Answer:
An advantage of sexual reproduction is that a genetic disorder in a parent might not affect the offspring.
Explanation:
got 100
Answer:
An advantage of sexual reproduction is that a genetic disorder in a parent might not affect the offspring.
Explanation:
Since there are only two types of reproduction, sexual and asexual, andin asexual reproduction, the offspring gets all the qualities of the parent, we can determine that the offspring might not get the genetic disorder from the parent IF it is sexual. That is because there are 2 parents, hence giving a 50-50 chance to get it.
Select the correct answer. Which of the following explains plantar flexion?
A. Pointing your toes down towards the ground.
B. Flexing your ankle towards the sky.
C. Rolling your foot outwards.
D. Rolling your foot inwards.
Answers
Answer:
A. pointing your toes toward the ground
Explanation:
Answer:
A Pointing your toes down towards the ground.
Explanation:
took the test
What is the ancient language(s) found on the large stone tablet in Rosetta
Answers
Answer: Ancient Greek
Explanation:
Answer:
Ancient Greek
Explanation:
The Greek text on the Rosetta Stone provided the starting point. Ancient Greek was widely known to scholars, but they were not familiar with details of its use in the Hellenistic period as a government language in Ptolemaic Egypt; large-scale discoveries of Greek papyri were a long way in the future.
what creates the bubble like film on the surface of water
Answers
Answer:
Surface tension
Explanation:
What are the different nutrients used for the body's cells?
Answers
Answer:
There are six classes of essential nutrients required for the body to function and maintain overall health. These six classes of essential nutrients are: carbohydrates, lipids (fats), proteins, water, vitamins, and minerals.
Explanation:
Once blood tonicity is negatively impacted, can the consequences be reversed?
Answers
Answer:
No.
Explanation:
Once blood tonicity is negatively impacted, the consequences can't be reversed because this tonicity permanently damaged the cell. For example, in hypotonic solution, If the water continues to move into the cell due to high solute concentration, it can damaged the cell membrane, the cell bursts and dies. But it can be reversed if the cell loses its water and become shrink in hypertonic solution and regain its original size by normalizing the water level.
What is the main function of the circulatory system in multicellular organisms?
Answers
Answer:
Multicellular organisms have developed transport and circulatory systems to deliver oxygen and food to cells and remove carbon dioxide and metabolic wastes.
Explanation:
Answer:
To transport materials throughout the body
Explanation:
26--2×4 what is the answer
Answers
Answer:
34
Explanation:
26--2×4
One of factor that influence the absorption water and mineral salt in plant is .....
A.
Root pressure
B.
Kind of plant
C.
Size of xylem
D.
Number of water
Answers
Answer:
i think itis the kind of plant
A bike rider falls off their bike and scrapes his knee on the pavement.
Which life function allows the injury to go back to normal?
Answers
Answer:
Research has shown in people with knee osteoarthritis, low-intensity cycling is as effective as high-intensity cycling in improving function and gait, decreasing pain, and boosting aerobic fitness
Explanation:
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Question 1) Where did you get your chromosomes from? How many do you have ?
Answers
Answer: 1. Chromosomes come in matching pairs, one from each parent.
You have a total of 46 chromosomes 23 from mom and 23 from dad.
2. Yes, because chromosomes come from parents so in this case yes.
Explanation:
Which statement is true for photosynthesis?
Producers use it.
Consumers use it.
Scavengers use it.
Decomposers use it.
Answers
The one that makes most sence is Decomposers use it.Explanation:
What sea creature is this?
Answers
Answer:
i wanna say a stingray but im not 100% sure
Explanation:
Distinguish between:
Bat and Dove
Answers
Answer and Explanation:
Bats are mammals of the order Chiroptera. With their forelimbs adapted as wings, they are the only mammals capable of true and sustained flight. Bats are more manoeuvrable than birds, flying with their very long spread-out digits covered with a thin membrane or patagium.
Their wings skeleton have the shape of finger/hands like a human.
Doves are the only family in the order Columbiformes. These are stout-bodied birds with short necks, and short slender bills that in some species feature fleshy ceres. They primarily feed on seeds, fruits, and plants.
#teamtrees #WAP (Water And Plant)
Answer:
Doves have beaks and no teeth, whereas bats have jaw bones with sharp teeth. Although they both fly, Dove and bats feature different structures that allow them to take flight. Doves have rigid, feathered wings that they flap completely in order to fly.
what are the similarities between cats and lion
Answers
Answer: eating D I C K
Explanation:
they lick it
Explain why two turns of the Krebs cycle are needed for each molecule of glucose ?
Answers
Two turns of the Krebs cycle are needed for each molecule of glucose
because glycolysis produces 2 molecules of pyruvate.
Glycolysis involves conversion of glucose to pyruvate after which it enters into the kreb's cycle to be converted into ATP which is the energy currency of cells.Pyruvate is the substrate-compound which enters into the kreb's cycle to form ATP. Since we are dealing with two pyruvates which are products of glycolysis then two turns are needed.Read more on https://brainly.com/question/25342836
when a racher puts cattle in a pasture, what happens to the amount of grass in it?
Answers
Answer: Cows put in a pasture of fresh grass will eat it down too a point it would regrow fast.. Unless the pasture is not large enough for the number of cattle. Then they will eat it into the ground and kill it.
Explanation:
NaCl dissociates into 2 particles in water Na and Cl. If the solution in question 4 contained 0. IM NaCl instead of 0.IM sucrose, what is the of the solution, and in which direction would the net flow of water be?
Answers
Answer:
-4.87 (see image for further explanation)
Explanation:
Water potential of solution will be − 4.87 The direction of water potential will be out of root into salt solution.
What is water potential?ψ = iCRT
Where, i = −2,
T = 273+ 20
R= 0.831
ψ = ( −2 ) ( 1) (0.831) ( 273+ 20)
= − 4.87bars
Water potential of a substance is equal to pressure
Ψ = ΨS + ΨP
Ψ = 0 + ( 4.87)
= − 4.87bars
Therefore, Water potential of solution will be − 4.87 The direction of water potential will be out of root into salt solution.
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Desceibe the structure of the phospholipid bilayer
Answers
Answer:
ok i tried this and i just got it wrong.
Explanation:
Answer:2.What is the structure of the phospholipid bilayer? the answer is VVS ITDAG AUTF GM AFC FFN PPM TN
Explanation:
Which of the following is a product of the photosynthesis reaction? Please help
Answers
Explanation:
Where is option? Show option
What is a compound in rock biology?
Answers
Answer:
Most rocks contain silicate minerals, compounds that include silicon oxide tetrahedra in their crystal lattice, and account for about one-third of all known ... "Evolutionary Aspects of Biological Involvement in the Cycling of Silica".
How does the watershed affect the water body into which it drains and how do humans impact this water?
Answers
Answer:
A watershed – the land area that drains to a stream, lake or river – affects the water quality in the water body that it surrounds. ... They are influenced by naturally varying lake levels, water movement to and from groundwater, and amount of stream flow.
Explanation:
A botanist has recently developed an enzyme called NoGro. This enzyme acts as an
herbicide by preventing cell growth in the leaves of a certain species of tree that is an
invasive plant species in Florida. The botanist wants to test the effects of temperature
on NoGro so that NoGro can be applied to the invasive tree under optimal
conditions on Florida farms. After looking into the background of the study, you
discover that the botanist performing this investigation is being paid by a company
that will make a lot of money if NoGro proves to be useful at eradicating the invasive
tree. How might this affect your view of the research in this experiment?
Answers
Answer:
results could be biased and therefore they are not reliable
Explanation:
A conflict of interest is generated when the authors of a given study have any type of interest that could influence their judgments, results and/or conclusions. These conflicts of interest include any relevant financial relationships, personal, religious, political or intellectual interests. To solve this situation, peer-reviewed, well-reputed journals generally include a conflict of interest statement where authors declare all interests that might be perceived as conflicting.
Why is it a good idea to set goals for a reading?
Answers
Answer:
To be able to remember more of the book you are reading.
Explanation:
what happens during telophase 2 select three options PLEASE HELPPP
Answers
Answer: Nuclear membrane forms,Cytoplasm starts to divide,Spindle fibers disappear.
Explanation:
Grassland songbirds often nest in the same grassland-wetland complexes as waterfowl, particularly in a certain part of those complexes, namely, upland habitats surrounding wetlands. Although some wildlife management procedures directed at waterfowl, such as habitat enhancement or restoration, may also benefit songbirds, the impact of others, especially the control of waterfowl predators, remains difficult to predict. For example, most predators of waterfowl nests prey opportunistically on songbird nests, and removing these predators could directly increase songbird nesting success. Alternatively, small mammals such as mice and ground squirrels are important in the diet of many waterfowl-nest predators and can themselves be important predators of songbird nest. Thus, removing waterfowl-nest predators could affect songbird nesting success through subsequent increases in small-mammal populations.
In 1995 and 1996, researchers trapped and removed certain waterfowl-nest predators, primarily raccoons and striped skunks, then observed subsequent survival rates for songbird nests. Surprisingly, they observed no significant effect on songbird nesting success. This may be due to several factors. Neither raccoons nor striped skunks consume ground squirrels, which are important predators of songbird nests. Thus, their removal may not have led to significant increases in populations of smaller predators. Additionally, both raccoons and striped skunks prefer wetlands and spend little time in upland habitats; removing these species may not have increased the nesting success of songbirds in the uplands enough to allow detection.
According to the passage, which of the following is true about the role played by ground squirrels in the ecology of grassland-wetland complexes?
(A) While not important in the diet of raccoons or striped skunks, ground squirrels are a significant source of food for other waterfowl-nest predators.
(B) Whereas ground squirrels are typically important as predators of songbird nests, their opportunistic predation on waterfowl nests also has an observable effect on waterfowl nesting success.
(C) Although most waterfowl-nest predators prey on small mammals such as mice and ground squirrels, populations of ground squirrels tend to increase quickly enough to compensate for this level of predation.
(D) Although ground squirrels have been known to prey on songbird nests, a larger portion of their diets is usually provided by predation on waterfowl nests.
(E) Since larger predators tend to prefer small mammals to songbird eggs as a food source, a large population of ground squirrels plays an important role in controlling opportunistic predation on songbird nests.
Answers
Answer:
(A) While not important in the diet of raccoons or striped skunks, ground squirrels are a significant source of food for other waterfowl-nest predators.
Explanation:
According to the passage, some predators of waterfowl nests prey opportunistically on songbird nests. Therefore, some wildlife management procedures directed at waterfowl, such as habitat enhancement or restoration, may also benefit songbirds. However, some procedures such as predator control may not always lead to benefits for the songbirds. For example, some predators of waterfowl nests such as raccoon and striped skunks are not predators of small mammals such as mice and ground squirrels who themselves are predators of songbird nests. So removing the striped skunk and raccoons from the habitat of the waterfowl and songbird nests, may not bring any benefit whatsoever to the songbirds. However, many other predators of waterfowl nests are also predators of squirrels and mice.
why must controlled fires be set in some ecosystems? what are some advantages and disadvantages?
Answers
Answer:well dry areas could catch fire and become out of hand or some plants may be harmed due to smoke
advantages:trimming area and making room
disadnstages:possible forest fire,harms plants,ruins animals homes
Explanation:
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A storm surge is characterized by
large hail.
strong winds.
severe lightning.
coastal flooding.
Answers
Answer:
A storm surge is characterized by coastal flooding.
Explanation:
A storm surge is a rise in sea level that occurs during tropical cyclones, intense storms also known as typhoons or hurricanes. The storms produce strong winds that push the water into shore, which can lead to flooding. This makes storm surges very dangerous for coastal regions.
I hope this helped :)
Answer:
D. Coastal flooding
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Describe the circumstances of a solar eclipse.
Answers
A solar eclipse happens when the Moon passes in front of the Sun and casts a shadow across Earth.
For a total eclipse to take place, the sun, moon and Earth must be in a direct line. The second type of solar eclipse is a partial solar eclipse. This happens when the sun, moon and Earth are not exactly lined up. The sun appears to have a dark shadow on only a small part of its surface.
Can cells leave g0?
A. Yes
B. Very rarely, but yes when there is a injury on a certain cell
C. No
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