Plasmolysis is the loss of water by plant cells after being placed in a solution with a higher concentration of solute than the cells. This is called a hypertonic solution. Osmosis causes water to flow from the cell into the surrounding liquid.
Plasmolysis is the process by which cells lose water in hypertonic solutions. When cells are in a hypotonic solution the reverse process cytolysis or cell lysis occurs resulting in a decrease in external osmotic pressure and a net flow of water into the cell. When plants are not watered the extracellular fluid becomes isotonic or hypertonic causing water to leave the plant cells.
This causes a loss of turgor pressure. You will probably notice it as a wilt. In more concentrated solutions cell contents lose water by osmosis. They contract and move away from the cell wall. Cells are limp It is cytolyzed. When a high concentration of salt is placed on the outside of the cell membrane water leaves and binds with the cell. As water is lost by this movement, the plant cells shrink and die. Because of this, salt can kill plants. It leaches water out of the cells.
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64. Bagels, white bread, breakfast bars, breakfast cereals and bakery muffins are NOT examples
of foods that contain refined grains.
T/F
Healthy fats are found in olive oil, avocado, flaxseed, and nuts.
T/F
How do psychiatrists differ from clinical psychologists?
Question 7 options:
Psychiatrists typically can’t prescribe medication.
Clinical psychologists earn a medical degree and become physicians.
Psychiatrists earn a medical degree and become physicians.
Clinical psychologists typically prescribe medication.
Answer:
Psychiatrists can prescribe medication, whereas psychologists cannot prescribe medication.
How does ticks come into contact with hosts?
Okay, so we have to consider that those little parasites (ticks), can perceive the environment just like other animals in terms of physicochemical properties, like air composition, temperature, and soil pH (like the one of the animal's sweat, or fur).
Having this in mind, they could recognize their host using these signals to orientate themselves.
Need help don’t understand
Some people have a disorder in
which their stomach muscles cannot contract and churn food.
What effect do you think this has on the length of time food
stays in the stomach?
Answer:
When the stomach muscles cannot contract and churn food to break it down, the food stays in the stomach longer, therefore increasing the time of digestion.
How many cells are in interphase, how many in prophase, how many in metaphase, anaphase, telophase?
Answer:
We get 69.6 % cells in interphase, 12.5% in prophase, 8.9% in metaphase, 5.4% in anaphase, and 3.6% in telophase.
Producersare found on what levelof a food chain, if the sun is notincluded?A. FirstB. SecondC. Third
Producers are found at the first level of every food chain. They are considered as autotrophs that can undergo photosynthesis. This level is also called as trophic level 1. They are the primary producers occupied by pants and algae.
The second level of the food chain eat the producers. They are called as the primary consumers. the third level of the food chain are the secondary consumers. They
Answer:
First
Because if the sun is not included , the are still some producers that don't use the sun
Based on the incoming signals, appropriate ____________ to skeletal muscles corrects the body's position in space.
Based on the incoming signals, appropriate motor-neurons to skeletal muscles corrects the body's position in space.
The cells that make up the nervous system and the brain are known as neurons. They are the basic signalling components that enable us to move our muscles, sense our environment, think, create memories, and do a lot more. Based on this signalling, motor neurons to skeletal muscles corrects the body's position in space.
All of our muscle motions are thus directly controlled by motor neurons, which send signals from the spinal cord to skeletal and smooth muscles (like those in your stomach).
The most prevalent type of nerve cell "body plan" for motor neurons is multipolar, with one axon and multiple dendrites on each cell.
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If a person were to stay at high altitudes for a long period of time, his or her hematocrit would
increase in order to compensate for the decrease in the amount of oxygen in the air he or she is
breathing.
True
Or False
Answer:
The correct answer would be true.
Explanation:
The person would suffocate if the hematocrit didn't increase for the lack of oxygen in the air.
9. I want to study how people respond to a vaccination against a virus. To make sure that I am doing everything right in my study
design, I should prepare a study proposal for the...
IARB
WHO
IACUC
IRB
CDC
Before a vaccination can be used in the US, the FDA must give its approval. The safety and efficacy of vaccines are helped to some extent by FDA regulations.
What are the benefits of Vaccination?Premature deaths, hospital stays, and doctor visits can all be very expensive consequences of diseases that can be prevented through vaccination. A lot of time, money, and resources are also required for local, state, and federal outbreak responses. The US saves billions of dollars by administering immunizations on schedule.
A pathogen is a bacteria, virus, parasite, or fungus that can infect the body and cause disease. The various components that make up each infection are typically exclusive to that particular pathogen and the disease it produces. The component of a disease known as an antigen that triggers the production of antibodies. The immune system's primary component is the antibodies created in reaction to the antigen of the infection. The warriors in your body's defense system are called antibodies.
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Identify the phase of mitosis
described in each step, and then
put the steps in the correct order.
a. Cell membrane pinches inward,
dividing the cytoplasm and its
contents.
b. Nuclear membrane reforms and
chromosomes uncoil.
c. DNA and histones condense;
nucleus begins to break down.
d. Chromatids separate and move
to opposite sides of the cell.
e. Chromosomes line up along cell
equator; spindle fibers attach to
each chromosome.
Answer:
c. DNA and histones condense; nucleus begins to breakdown-Prophase
e. Chromosomes line up along cell equator; spindle fibers attach to each chromosome-metaphase
d.Chromatids separate and move to opposite side if the cell-anaphase
b. Nuclear membrane reforms and chromosomes uncoil- telophase
a. cell membrane pinches inward, dividing the cytoplasm and its contents-cytokinesis
In the photo on the previous page and video, Making a Sold, two liquids were combined and a solid formed. Using the materials and procedures provided by your teacher, now see if you can form a solid using two liquids. n the space below, sketch what you think happened to the particles when each pair of liquids was mixed.
What happened to the particles when the both liquids are combined together is that the random movement of the liquid particles strongly binds together after the formation of solid.
What is solid?The solid is the state of matter that contains particles that are strongly attracted to each other.
The properties of solid include the following:
Solids have a definite shape,Solids contain particles that closely packed together.The mass of solids can be determined in Kilograms or gramms.Solids can be formed from the mixture of two liquids through the process of crystallization of the liquids.
The formation of the solid product occurred due to a decrease in the movement of particles as the solid forms.
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The only variables in the lab procedure are the
independent variable,
and the dependent variable,
DONE
Hypothesis: If plants grow in soil containing
worms, then the plant growth will be greater,
because worms help decompose organic
matter and distribute it through the soil in a
form that plants can use.
Notice that the only two factors that change during
the experiment are the variables of the
Worms help the soil by breaking down organic debris, so if plants are planted in it, they will grow strong and healthy. Worms do this by supplying the soil with the nutrients it needs.
What is a hypothesis ?In a scientific setting, a hypothesis (plural: hypotheses) is a tested claim regarding the relationship between two or more variables or a suggested explanation for a phenomenon that has been observed.A hypothesis is a provisional, verifiable response to a question in science. When a scientist is interested in a particular scientific inquiry, she reads up to learn what is already known about the subject. Then she uses that information to build a tentative solution to her scientific query.A scientific hypothesis is a theory that offers a speculative explanation for a phenomenon or a specific group of related events that have been observed in the natural world.To learn more about : Hypothesis
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Describe the relationships among genes, DNA, and traits.
Responses
Traits determine the DNA in genes.
Traits are determined by genes, which are composed of DNA.
Traits are made of genes, which are composed of DNA.
Genes code for traits, which are composed of DNA.
The relationship among genes, DNA, and traits can be defined as, Traits are determined by genes, which are composed of DNA.
A trait is a phenotype that is expressed in the individual. Genes are segments of DNA that are responsible for the expression of a particular phenotype or physical characteristic. Genes code for protein through RNA resulting in the expression of a character.
DNA is the genetic material that has coding and non-coding part. The coding sequence is also referred to as the gene. The coding part of DNA undergoes translation resulting in the formation of RNA, then RNA undergoes translation to form protein and the protein is expressed as a trait.
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pleasse help!! Explain how the structure of a leaf is designed perfectly for photosynthesis? 15 points!
molecules used for growth and repair______,and molecules used for energy______.A. became part of the body, our loss as CO2 in H2OB. became CO2 and H2O, became part of the bodyC. became ATP, became C6H1206D. became C6812O6,became ATP
The correct option is D
Molecules used for growth and repair become C6H1206 and molecules used for energy become ATP.
Consider the following:Carly recently went through a fitness assessment. This assessment told her what her maximal capabilities are, and she has set short-term goals in order to improve. What should Carly do to see if she is improving and on her way to her goal?
To see if she is improving and on her way to her goal, Carly should get reassessed. If she is improving, her results should be better than her previous assessment.
Examine this image of part of a flower ovary under magnification. What types of structures do you see inside of the ovary?
The type of structures which can be seen or found inside the ovary is referred to as the ovules or seeds.
What is Ovary?This is referred to as the female reproductive organ of the flower and it forms the fruit after he process of fertilization have occurred. The ovary under close observation has just one chamber which contains the seeds.
The seeds ensure that the plant species survive due to the seeds being dispersed and planted to form new species in what is referred to as reproduction which is therefore the reason why it was chosen as the most appropriate choice.
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What’s the correct answer answer asap for brainlist
Answer: C
Explanation:
. Brown eyes is dominant to light eyes. Mr. O’Ryan has blue (light) eyes. Mrs. O’Ryan is heterozygous
for brown eyes. What are the eye color possibilities of their son, Kellan O’Ryan? *Use letter B
Answer: 50%
Explanation:
B is dominant (brown)
b is recessive (blue)
Heterozygous is having two different alleles of a particular gene or genes.
If homozygous then it will be the same gene.
The possibilities of him having blue or brown eyes are 50%
What’s the correct answer answer asap for brainlist
Answer:
C
Explanation:
The answer isnt A becuase we want the organism to live its life span out and its not B becuase if its more vunerable its more likely to die and its not D becuase if it lowers fertilty rate it wont have a big change just less change of haveing kids witch isnt a big plus so C gives u a gentic advantage like supeheros so C seems like a plus side
Hope This Helps <3 <3
26. Electromagnetic radiation including light travels fastest in
(1 point)
Seawater
fresh water
solids
empty space/vacuum
EM waves travel fastest in a vacuum because there are no particles to block their path.
The Moorish idol fish lives in coral reefs around the world. Its oceanic environment is saltier than the environment inside its cells. Ocean water contains more sodium and chloride ions than the fish's cells.
Which option best describes a challenge the Moorish idol fish faces in regulating sodium and chloride ions?
Responses
The fish must rely on passive transport to remove sodium and chloride ions.
The fish must rely on passive transport to remove sodium and chloride ions.
Sodium and chloride ions will passively diffuse into the fish's body.
Sodium and chloride ions will passively diffuse into the fish's body.
The fish will lose sodium and chloride ions to its environment.
The fish will lose sodium and chloride ions to its environment.
Transporting sodium and chloride ions into the fish's cells requires energy.
Answer:
fish live in the ocean
Explanation:
2. Explain One summer vacation morning, the
weather was warm and humid. About 3:00,
heavy clouds formed, and then there was a
severe thunderstorm with rain and hail. After
the storm, the sun came out, but the tempera-
ture had dropped 15°C. Explain each change
in the day's weather.
The day-to-day change in the temperature of air on the Earth is controlled by the energies which are received and lost from the surface of the planet.
What is temperature change?
During summers, the sunrays hit Earth at a very steep angle. The sunlight does not spread out as much, thus increasing the amount of energy which is hitting any spot. Also, the long daylight hours allows Earth time to reach the warm temperatures.
The daily air temperatures at Earth's surface are in control of the incoming and outgoing energies. During the day, the temperature of air increases as energy gain exceeds the energy lost from the surface of Earth. And throughout the night, the air temperature decreases as the surface of Earth loses more energy than it receives.
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Write a brief letter to a local coalition of cattle ranchers explaining why the members should begin raising cattle on open grasslands instead of in feedlots.
Being rising cattle on open grassland instead of feedlot is really important.
Describe a feedlot.In intensive livestock farming, a particular kind of feeding operation is called a feedlot.
The basic goal of a feedlot is to feed cattle and help them gain significant body fat over the course of five months.
Describe grassland.It is a region where a practically continuous layer of grasses rules the vegetarian.
Why is it vital to raise cattle on open grassland rather than in a feedlot?There are many drawbacks to feedlots, such as the constant standing of cattle in their own feces and urine in a tight, cramped environment.
E levels may be higher in cattle whose diets are high in corn.
Cattle living in feedlots experience stress since their heavy corn-based diet results in constant health problems. Its flooring is subpar, the cattle suffer from a lack of sleep, and there are no opportunities for them to exercise or get enough rest.
On the other hand, cattle prefer open grassland since it is considerably sweeter.
Therefore, this is the rationale for raising cattle on open grassland rather than in feedlots.
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9. The following materials can be reused, EXCEPT
A. woods
B. paper
C. aluminum cans
D. paint brush
Answer:
B. paper
Explanation:
Once paper has been used there's no other way of reusing it physically, but chemically paper can be reused in one way or another...
Based on these data what happened between 2 minutes and 3 minutes?
Answer:
C
Explanation:
snail stopped moving, as there is no change in distance travelled.
What is the purpose of a mantra?
Question 13 options:
To help people sleep.
To help people argue.
To help people explain emotions.
To help people meditate.
Purpose of a mantra is to help people meditate.
Mantra is a word or phrase you repeat during meditation it help in keeping your mind calm .It can make a lot of difference, especially if you have trouble concentrating or getting in the right frame of mind. Mantra are also believed to be responsible for building concentration and keeping one calm and composed .
When you chant mantras your mind releases the positive energy that decreases the negative thoughts or stress. Chanting mantras is an ancient practice that calms your mind and soul. some examples of mantra can be I am calm. I am present in this moment. I am at peace.
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Which of Thurstone's primary mental abilities involves being able to determine examples from general rules?
Question 15 options:
Perceptual ability
Inductive-reasoning ability
Visual-spatial ability
Deductive-reasoning ability
Thurstone's primary mental abilities involves being able to determine Perceptual ability .
Thurstone's formulate a model of intelligence centered on "Primary Mental Abilities" (PMAs), which were independent group factors of intelligence that different individuals possessed in varying degrees. The seven primary mental abilities in Thurstone's model are verbal comprehension, verbal fluency, number facility, spatial visualization, perceptual speed, memory, and inductive reasoning.
Example of Thurstone's model may be used to understand the attitude of employees in an organization during hiring process . Important parameters is verbal communication which is the ability to understand conversations. Thurstone claims that it is one of the primary cognitive skills in humans.
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Have the discoveries of the extrasolar planetary systems confirmed the nebular hypothesis predictions?
The discoveries of the extrasolar planetary systems can confirm nebular hypothesis predictions, as the nebular hypothesis said that there are still remaining planets present that are undiscovered.
What is a nebular hypothesis?This hypothesis states that the Sun and all of the planets in our Solar System were originally part of a vast cloud of molecular gas and dust that collapsed some 4.57 billion years ago due to some terrible event.
Therefore, the nebular hypothesis predicted that there are still additional planets present that have not yet been identified, and the findings of the extrasolar planetary systems can corroborate those predictions.
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