The best explanation for the change in the egg's size is that Water moved into the cell by osmosis because the solute concentration was higher inside the cell than outside the cell. Option B.
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When talking about solutions, we can classify them as follows,
Hypertonic ⇒ A hypertonic solution has a higher concentration of solute than the cell. This means that in the cell interior, the solute concentration is lower than in the solution itself. Isotonic ⇒ The solute concentration is the same inside the cell and outside. Hypotonic ⇒ A hypotonic solution has a lower concentration of solute than the cell. This means that in the cell interior, the solute concentration is higher than in the solution itself.
Water is considered to be a hypotonic solution.
When a cell is in a hypotonic solution, through osmosis, water moves toward the cell.
Note: In this example, the egg is the cell.
Osmosis is the phenomenon that occurs when two dilutions of different concentrations -in this example, the interior of the cell and the solution- are separated by a semipermeable membrane.
The membrane allows the pass of water but not solute. Hence, water can move from the most diluted side to the less diluted one.
Water tends to go from the hypotonic solution to the cell interior and keeps doing so until concentrations are equal in the cell interior and exterior.
As water enters the cell, the cell begins to enlarge and becomes bigger-sized. And because cells can not limit the amount of water moving in, it keeps swelling until the membrane can not stretch anymore, and lysis occurs. It bursts.
What we need to consider is
When a cell with a semipermeable membrane is placed in a hypotonic solution, water enters the cell. When a cell with a semipermeable membrane is placed in an isotonic solution, there is no water movement. When a cell with a semipermeable membrane is placed in a hypertonic solution, water gets out of the cell.So, the best explanation for the change in the egg's size is Water moved into the cell by osmosis because the solute concentration was higher inside the cell than outside the cell. Option B.
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Tay-Sachs disease is a genetic disorder that is usually fatal in young children. If both parents are carriers of the disease, the probability that their offspring will develop the disease is approximately 0.25. Suppose that a husband and wife are both carriers and that they have four children. (The outcomes of the four pregnancies are independent). What is the probability that two children develop Tay-Sachs disease
Answer:
Tay-Sachs disease (TSD) is a genetic disorder that normally kills children when they are young. If both parents are carriers of the disease, their offspring have a 0.25 chance of contracting it.
Explanation:
This sentence explains the production and movement of energy in the sun and the flow of energy from the sun to earth. drag each item to the correct location. Answers may be used more than once. (2 points)
Answer:1.nuclear fusion 2.radiation 3.conduction 4.radiation
Explanation:I just took the quiz! All answers are correct
Answer:
Answer:1.nuclear fusion 2.radiation 3.conduction 4.radiation
Explanation:
PLEASE ANSWER I NEED HELP
Answer:
this would be B
Explanation:
a oceanic crust is denser than a continental crust
8. Which is true about viruses!
a. They are prokaryotic cells that infect living organisms
b. They are nonliving particles that infect living organisms
C. They are eukaryotic cells that infect living organisms
d. They are fungi that infect living organisms
Answer:
The Answer is gonna be A. They are prokaryotic cells that infect living organisms
This is the right Answer :3
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According to Charles Darwin theory of natural selection
the answer should be the species most adaptable to changes (like in the environment etc.) but I would go for C or D
Answer:
C or D
Explanation:
the answer should be the species most adaptable to changes (like in the environment etc.) but I would go for C or D
Fibroblasts can be placed on thin sheets of silicone rubber. Under normal circumstances, fibroblasts exert sufficient tension on the rubber so that it visibly wrinkles. Explain how the ability of fibroblasts to wrinkle rubber would change if the cells were treated with a permeable form of C3 transferase, a toxin (from the bacterium Clostridium botulinum) that covalently modifies an amino acid in Rho. The modification renders Rho unable to bind to proteins that it would normally bind to when active.
Answer:
C3 transferase decreases Rho activity and contractility by decreasing the number of stress fibers and thus also reducing wrinkles
Explanation:
Rho protein is a small GTPase, i.e., an enzyme that binds GTP to hydrolyze it to GDP, which is known to mediate the formation of stress fibers and focal adhesion. Rho protein is involved in diverse cellular functions including, among others, adhesion, motility, and division by reorganization of the actin cytoskeleton. The bacterial toxin C3 transferase derived from Clostridium botulinum is able to lock Rho in an inactive state. C3 transferase adds an ADP-ribose to Rho, thereby leading to the accumulation of a Rho-guanine nucleotide dissociation inhibitor (GDI) complex in the cytoplasm. In consequence, C3 transferase functions to decrease contractility by blocking Rho activity, decreasing the number of stress fibers and leading to a reduction in wrinkles.
Which wave interaction is shown by the diagram? o absorption o diffraction o reflection o refraction
Answer:I agree
Explanation:
Diffraction wave interaction is shown by the diagram.
What do you mean by diffraction?Diffraction is defined as the interference or bending of waves around the corners of an obstacle or through an aperture into the region of geometrical shadow of the obstacle/aperture.
The most common example of diffraction occurs with water waves which bend around a fixed object. Light bends similarly around the edge of an object. The animation shows wave fronts passing through two small openings.
Diffraction results from the interference of an infinite number of waves emitted by a continuous distribution of source points. According to Huygens' principle every point on a wave front of light can be considered to be a secondary source of spherical wavelets.
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Explain how the discoveries by Rosalind Franklin helped Watson and Crick build an accurate model of DNA.How can DNA be used to help solve a crime?
Answer:
Rosalind Franklin had taken the first picture showing the structure of DNA, called the double helix. This helped confirm what Watson and Crick had thought, thus leading them to make the first accurate model. DNA can be used to solve a crime because it can prove a certain person did something. EX: finding hair and who it belongs to/ finding finger prints and who they belong to.
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What is needed to complete the equation representing cellular respiration?
Glucose + Oxygen → Carbon Dioxide + _______ + Energy
Answer:
Water
Explanation:
Answer:
water
Explanation:
glucose+oxygen-> carbon dioxide+water+energy
explain the challenges Israel is facing with implementing vaccine passports. Also explain what issues poorer countries like Palestine are facing with getting vaccines. Do you think people in rich countries must get vaccinated? How can we help countries that have poor health services get vaccinated?
Answer:
It will cause him to get sick with corno and also he will affected most people that he sees or touch but the vaccine helps prevent that.
Explanation:
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Which of the following would NOT elp evaluate the strength of a scientific claim that life on Earth could not have started without the presence of orgar
O conducting a survey
O scientific argumentation
O critical and logical thinking
O considering other scientific explanations
Answer:
a: conducting a survey
Explanation:
i got it correct
Choose the term that best matches the description given.
This is an illegal immigrant who paid for assistance in coming to this country and obtaining a job:
forensic nurse examiner
Identi-KIT
forensic photographer
victim of human smuggling
photosynthesis is a reaction that
Answer:
that takes place inside a plant, producing food for the plant to survive
1. Which change is an environmental effect of building dams?
A) weed growth upstream
B) increased fertility downstream
C) increased water temperature upstream
D) sediment builds up downstream
2. How can humans increase the rate of endangered or extinct species?
A) reduce environmental impacts
B) build and populate more zoos
C) pass more laws about land use
D) introduce new predators to an environment
Answer: 1. C) increased water temperature upstream. 2. D) introduce new predators to an environment. brainliest??
Explanation:
The change that is an environmental effect of building dams is increased water temperature upstream, which is in Option C, and humans can increase the rate of endangered or extinct species by reducing environmental impacts, which is in Option A.
What is Human activities on species?Human activities are the primary cause of species endangerment and extinction, so humans must take actions to reduce environmental impacts in order to increase the rate of endangered or extinct species, and by reducing hunting and poaching and restoring degraded ecosystems can help protect endangered species, and reducing carbon emissions and promoting sustainable development can help mitigate the effects of climate change.
Hence, the effect of building dams is increased water temperature upstream, which is Option C, and humans can increase the rate of endangered or extinct species by reducing environmental impacts, which is Option A.
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How might the production of antibiotics and odours have evolved?
Answer:
Antibiotic resistance evolves naturally via natural selection through random mutation, but it could also be engineered by applying an evolutionary stress on a population. Once such a gene is generated, bacteria can then transfer the genetic information in a horizontal fashion (between individuals) by plasmid exchange
How do some chemicals increase the risk of a person getting cancer ?
A. By causing cell mutations
B. By causing a decrease in the immune response
C. By causing an increase of toxins in the skin
D. By causing a deficiency of Vitamin D
Answer:
A. By causing cell mutations
[please] put these in order
Answer: The arrangements and correct order of the above described genetic and behavioural adaptations includes:
A.) Camouflage: This is a survival adaptation by which an animal blends in and is hidden in its surroundings.
B.) Mimicry: This is an organism exhibiting characteristics similar to one known to be dangerous.
C.) Tropism: This is the growth or movement of an organism ( usually plant) in response to a stimulus.
D.) Venom: This is a poison secreted by animals for either defensive or offensive purposes.
E.) Mutualism: This is the interaction of two organisms where both benefits.
F.) Commensalism: This is the interaction of two organisms where one is helped and the other is neither helped nor harmed.
Explanation:
In the study of organisms and it's environment, they are able to adapt through genetic and behavioural mechanisms. Adaptation of defined as the ability of organisms to become fitted to its environment by modifying or changing its features. These features may be structural or behavioural.
STRUCTURAL ADAPTATION: Almost every part of the body of a living organism is structurally adapted to its mode of life. They are structurally adapted for the following specific functions:
--> Escape and defence: many animals use CAMOUFLAGE to remain unnoticed by potential predators. While some others are capable of producing poisonous VENOMS which may become offensive to the predators. Also many harmless organisms may possess structural behaviours that may MIMIC dangerous organisms thereby keeping their predators at arms length.
--> obtaining food: organisms needs to possess some structural features that will enable them obtain food in their environment. This usually leads to forming various feeding relationship ( which may be MUTUALISTIC or COMMENSALISM) with one another to be able to obtain food for survival.
BEHAVIOURAL ADAPTATION: Behaviour is everything an organism does in response to changes in its environment. Plants do exhibit behavioural adaptations and a typical example is the phototrophic movement of plant shoots which is a type of TROPISM.
How does the shape of organ relate to gene expression?
Answer:
The alleles for MADS-box genes get expressed at different levels. They form the “L” complex and the “SP” complex. These are a group of proteins that determine the shape of the petals. The more they L complex is expressed, the high the probability that the petals of the flower will form the ‘lip’ and the high the SP complex is expressed then the high the likelihood of dominant petals.
Explanation:
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Many of the hardest rocks are metamorphic rocks. Why do you think metamorphic rocks are harder than sedimentary rocks?
Answer:
Metamorphic rocks are almost always harder than sedimentary rocks. They are generally as hard and sometimes harder than igneous rocks. They form the roots of many mountain chains and are exposed to the surface after the softer outer layers of rocks are eroded away.
Because their mineral grains grew together tightly during metamorphism, they're generally strong rocks.
a male is born colorblind what do we know about his mother
Bones grow in diameter due to bone formation
Answer:
Osteoblasts move in and ossify the matrix to form bone. Even though bones stop growing in length in early adulthood, they can continue to increase in thickness or diameter throughout life. The increase in diameter is called appositional growth.
Briefly explain the neurophysiological basis (i.e. neuronal/axonal activity, synaptic behaviour) of how the monkey grip procedure
performed about the arms is able to cause a greater stretch reflex response in the leg for the same amount of sensory input when compare to a response without the monkey grip procedure.
The monkey grip procedure involves squeezing an object with one hand while the other arm is passively stretched that causes an increase in the stretch reflex response in the leg muscles of the same side that is being stretched.
What are the neurophysiological basis of the monkey grip procedure?The neurophysiological basis involves the activation of descending pathways from the brain modulating the stretch reflex response. When the grip is initiated, activation of motor areas in the brain increases that send signals down to the spinal cord.
These signals inhibit the interneurons activity that causes stretch reflex response causing a greater response in the leg muscles when they are stretched. The stretch reflex involves the activation of muscle spindles in the spinal chord that inhibit or excite the motor neurons that control the muscle.
The monkey grip procedure increases the excitability of the motor neurons controlling the stretched leg muscles that results in a greater stretch reflex response leading to a more forceful contraction of the leg muscles.
Therefore, the monkey grip procedure involves the complex interactions between descending motor pathways from the brain in the spinal cord that underlie the stretch reflex response.
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Is this correct? If not plz help
Answer:
Where is the question?
Explanation:
Which tectonic plate lies underneath the starred region? *
A. African
B. Pacific
C. Indo-Australian
D. Eurasian
Answer: B
Explanation:
10 Volcanic ash serves as a good marker of geologic
time because the ash
(A) is highly radioactive
(B) destroys all plant and animal life
(C) has only a local deposition
(D) is deposited rapidly over a large area
Answer:
D
Explanation:
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Sleet forms directly from which type of precipitation?
A. Snowflakes
B. Hail
C. Rain drops.
D. Dust
Answer:
C
Explanation:
Sleet is pellets of ice that form when snow falls into a warm layer and melts into rain. The rain then falls into a freezing layer of air that is deep enough to refreeze the raindrops into pellets
HELP ASAP!! In angiosperms, reproduction takes place in
A-cones ,
B-pollen.
C-flowers.
D-leaves.
Answer:
i think ur answer B.)
Explanation:
sorry if wrong
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Traits, or characteristics, that organisms develop and are passed down to become new species are called _______ traits.
Plz help will give brainest
Answer:
I believe it's D
Explanation: