Answer:
The word ‘diffusion’ means free movement across distance, with or without the presence of a barrier. However, there is a phenomenon known as facilitated diffusion which occurs at the cellular level. The cell does not allow free radicals and other harmful substances to enter and harm the cell organs.
Explanation:
Answer:
When certain large molecules are unable to move through the membrane without the help of channel proteins.
Explanation:
Facilitated diffusion occurs when large molecules that are unable to pass through a membrane on their own make use of channel proteins to move from one side of the membrane to the other. Facilitated diffusion can occur when a liquid on one side of a membrane has a higher osmotic pressure than a liquid on the other side of the membrane, but it isn’t a required feature of facilitated diffusion. Similarly, facilitated diffusion can occur when there’s a large membrane potential present, but it isn’t a required feature of facilitated diffusion. Facilitated diffusion doesn’t require the use of energy, so the presence of ATP is irrelevant to facilitated diffusion occurring.
vocabulary: match the phrases on the left with the term that best fits. use answers only one time
pls help:(
Answer:
Explanation:
Autotroph
Chloroplasts
Krebs cycle
Glucose
Anaerobic
Aerobic
Energy
Atp
Glycolysis
Sunlight
Light independent reaction
Chlorophyll
dean is studying an organism. It is heterotrophic, multicellular, and eukaryotic. And sometimes undergoes sexual reproduction.
A.Fungi
B.Bacteria
C.Animalia
D.Plantae
Answer:
A) Fungi
Explanation:
Which type of stem cell are fertilized eggs?
A. Totipotent
B. Multipotent
C. Pluripotent
D. Unipotent
Answer:
The correct answer is Totipotent.
Explanation:
"Because I put it on my test an was correct".
<I promise that its the correct one>
Hope this help!
Which structure in plants produces a substance that protects the extending roots from developing friction?
Answer:
root cap
Explanation:
Part D
Follow these steps and study the table to answer the question,
1. Go to the Weekly US Map: Influenza Summary Update e. At the top of the map, click the back arrow
several times until the map no longer changes. If the current season is shorter than 6 months, view
the previous season with the drop down box. Note how the trends change over time.
2. Review the following data table, which represents the estimated number of deaths, medical visits,
illnesses, and hospitalizations averted by the flu vaccine during several flu seasons.
Averted Deaths
Averted Averted Averted
illnesses Medical Visits Hospitalizations
Pneumonia and Respiratory and
Influenza Circulatory
Deaths Deaths
Fraction
Number Number Number prevented Number Number
(%)
2010-2011 5,039,277 2,514,353 70,821 20.8
3,434
9,880
2011-2012 1,981,571 968,312 39,301
2012-2013 5,628,332 2,701,875 61,522 11.1
1,823
5,280
2013-2014 6,683,929 3,080,284 86,730 21.5
3,840
2014-2015 1,606,813 792,958 47,449
1,419
2015-2016 5,083,498 2,504,323 71,479 18.9
2,882
Season
22.7
1,227
3,618
9,172
7.5
Using the data you just reviewed, create a scientific argument of one to two paragraphs that support or
oppose the current flu vaccine recommendations.
Answer:
Flu vaccinations are fundamental as they reduce the risk of flu illness by over 50%.
Explanation:
Flu vaccinations reduce the risk of flu illness by over 50%. This makes this process extremely important and fundamental for all human beings as they not only protect the person who gets the vaccine, but it also contributes to the prevention of spreading to other people, especially children and older adults who possess a greater risk of developing flu complications.
The antibodies that are produced by the vaccine prevent the flu virus from attaching to a healthy cell. However, if a person has not been vaccinated, the virus will attack the healthy cells because there is an absence of antibodies that prevent this process.
What was a positve aspect of interaction between French settlers and American Indians?
1: American Indians gained access to manufactured goods.
According to the endosymbiotic theory, which cellular process was involved in the evolution of mitochondria and chloroplasts?
A.symbiosis
B.phagocytosis
C.endosymbiosis
D.photosynthesis
According to the endosymbiotic theory, the cellular process was involved in the evolution of mitochondria and chloroplasts is phagocytosis.
What is endosymbiotic theory?Endosymbiotic theory is the theory that mitochondria and chloroplasts, which are organelles of eukaryotic cells, originated as independent organisms.
The endosymbiotic theory explains that smaller prokaryotic cells were engulfed by larger prokaryotic cells in a process called phagocytosis.
Therefore, according to the endosymbiotic theory, the cellular process was involved in the evolution of mitochondria and chloroplasts is phagocytosis.
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What are microscopic unicellular, prokaryotic organisms that move through the Earth doing both good and harm?
a. Protists
b. Eubacteria
c. Fungi
d. Archaebacteria
Eubacteria are microscopic unicellular, prokaryotic organisms that move through the Earth doing both good and harm. Thus, the correct option is B.
What are Prokaryotic organisms?Prokaryotic organisms may be defined as single-celled organisms that lack a well-defined nucleus and other membrane-bound cell organelles.
Protista is a simple eukaryotic organism that is unicellular in nature. Fungi are non-photosynthetic organisms that belong to the class of eukaryotic organisms. Archaebacteria are a group of prokaryotes but they emerge from eukaryotes.
Therefore, Eubacteria are microscopic unicellular, prokaryotic organisms that move through the Earth doing both good and harm. Thus, the correct option is B.
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10.
Both lipids and carbohydrates can be used by the cell as -
A. O replacements for salts.
В.
catalysts for metabolic reactions.
c. building blocks for RNA.
D
sources of energy.
D both can be used as sources of energy
The similarity between lipids and carbohydrates is that both are classes of chemical compounds that are found in living things. Thus, option D is correct.
What are the use of lipid and carbohydrate?Two of the four significant biomolecules include lipids and carbohydrates. They are both sources of energy.
However, although lipids store energy for later use and release it more slowly, carbs are available as instant energy sources. Thus, this is the primary distinction between lipids and carbs.
More energy is stored in lipids than in an equivalent mass of carbs. To release their energy, however, carbohydrates are easier to digest than lipids.
This indicates that they are made up of many carbon atoms with bonds to oxygen and hydrogen.
Therefore, Both lipids and carbohydrates can be used by the cell as sources of energy.
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Where does competition for reproduction most likely occur?
ecosystem
community
organism
population
Your answer is D .It's population because a community is the number of species able to reproduce in an area
PLEASE MARK ME AS BRAINLIEST
In which layer of the ocean are you likely to find microscopic plants called phytoplankton?
What may happen if mitosis doesn't start around the open wound?
Mitosis is the type of cell division where the daughter cells are exact copies of the parent cell. Mitosis takes place around the open wound area for recovery but if mitosis does not start around the open wound recovery would not take place.
What is Mitosis?
Mitosis is the process of cell division where the parent cell undergoes division to form daughter cells which are exact copies of the parent cell. Mitosis is also known as Equational division. The chromosomal number in the parent cell is exactly same as the daughter cells.
Mitosis is divided into two phases: Interphase and M-phase. The actual cell division takes place in the M-phase. M-phase is divided into four phases which are Prophase, Metaphase, Anaphase, and Telophase. In mitosis, one parent cell gives rise to two daughter cells. Mitosis takes place in all the cells of an organism.
Mitosis is responsible for restoring the cell number back to normal in body.
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The browning of potatoes on contact with oxygen is caused by the enzyme reaction depicted above. Which of the following could increase the rate of this reaction?
A. Adding more catechol oxidase
B. Adding more benzoquinone
C. Reducing the amount of catechol
D.Reducing the amount of catechol oxidase
Pls help! P.S. you may or may not have to click on the picture to see all of it. Thank you.
Answer:
I think it is adding catechol oxidase
Explanation:
This is because more enzymes are able to take in more substrates, or reactants more quickly, therefore increasing the speed of the reaction.
Hope this helps!
Answer:
he is correct it is adding catechol oxidase
Explanation:
it would increase the rate of the reaction
Which of the following is classified as an axial muscle?
A. Teres major
B.
Pectoralis major
C. Subscapularis
D. All of the above
Answer:
A: teres major
Explanation:
THIS IS THE ANSWER TRUST ME
Answer:
A Teres muscle
Explanation:
took the test
When a rapidly moving cold air mass overtakes a slow-moving warm air mass, the result is a(an)
Ans Occluded front
Explanation:
Answer: Occluded front
Identify the type of change illustrated.
Propaganda Originally, propaganda meant a system for propagating (spreading) religious doctrines, then any kind of
ideas. As used today, it generally means the dissemination of political opinions for the purpose of biasing judgment
(brainwashing)
Answer:
The correct answer is - pejoration.
Explanation:
Pejoration is the change that downgraded or worsen a specific condition or word or process which originally positive but now its meaning becomes totally negative.
Propaganda is the originally stands for the spreading religious doctrine but now its meaning becomes the dissemination of political opinions for brainwashing people.
what is the term used for populations moving into an area
Answer:
Popularity Growth (Immigration)
Explanation:
:( i tried (sorry)
Answer
Population transfer or resettlement is the movement of a large group people from one region to another
Hope this helps! <3
Consider the energy diagram below.
What is the correct answer
Answer:
B
Explanation:
Less activation energy means the reaction will easily occur.
I’m not sure what the answer is.
Answer:
b DNA and RNA
Explanation:
because those are the two one
Type your response in the box.
Watch this video about the stresses on the body caused by carrying heavy backpacks. Then design an
investigation about the effect of carrying backpacks on students' health using these steps of the scientific method:
• make observations or inferences
• ask questions
• construct hypotheses and make predictions
• test hypotheses
• analyze results
Your investigation can address any question you have about backpacks and student's health that you choose.
PLATO helppp
Answer:
Make observations or inferences: In school, most students carry a backpack. Students frequently complain that their backpacks are heavy or hurt their backs.
Ask questions: Do students who carry heavier backpacks report more pain than students who do not?
Construct hypotheses and make predictions: Students who carry heavier backpacks are more likely to experience pain in their back at the end of the school day.
Test hypotheses: Get a sample of students in the school to help with the experiment. All students in the experiment would be students from the school and have no known back conditions. Then weigh the students’ backpacks, and ask the students if they have back pain at the end of the day.
Analyze results: Record the data in a table, and then organize the information by the weight of the backpacks. Group the backpack weights in five-pound intervals (five pounds, ten pounds, etc.) and use a bar graph to show the yes and no responses to the pain question for each student.
Explanation:
trust me its right bro
Answer:
Make observations or inferences: In school, most students carry a backpack. Students frequently complain that their backpacks are heavy or hurt their backs.
Ask questions: Do students who carry heavier backpacks report more pain than students who do not?
Construct hypotheses and make predictions: Students who carry heavier backpacks are more likely to experience pain in their back at the end of the school day.
Test hypotheses: Get a sample of students in the school to help with the experiment. All students in the experiment would be students from the school and have no known back conditions. Then weigh the students’ backpacks, and ask the students if they have back pain at the end of the day.
Analyze results: Record the data in a table, and then organize the information by the weight of the backpacks. Group the backpack weights in five-pound intervals (five pounds, ten pounds, etc.) and use a bar graph to show the yes and no responses to the pain question for each student.
Explanation:
Its the sample answer
Need 11 facts about solar eclipse
1-The longest a total solar eclipse can last is 7.5 minutes.
2-The width of the path of totality is usually about 160 km across and can sweep across an area of Earth's surface about 10,000 miles long.
3-Almost identical eclipses occur after 18 years and 11 days.
4-This period of 223 synodic months is called a saros.
5-Each year there are between 2 and 5 solar eclipses.
6-The total solar eclipse, when the Moon completely obscures the Sun and leaves only the faint solar corona, is known as a Totality.
7-Total solar eclipses are rare, happening only once every 18 months.
8-Total solar eclipses produce harmful rays that can cause blindness.
9-If any planets are in the sky at the time of a total solar eclipse, they can be seen as points of light.
10-During a total solar eclipse, conditions in the path of totality can change quickly. Air temperatures drop and the immediate area becomes dark.
11- A solar eclipse can only occur when the Moon is close enough to the ecliptic plane during a new moon
Answer:
1-The longest a total solar eclipse can last is 7.5 minutes.
2-The width of the path of totality is usually about 160 km across and can sweep across an area of Earth's surface about 10,000 miles long.
3-Depending on the geometry of the Sun, Moon, and Earth, there can be between 2 and 5 solar eclipses each year.
4-A total solar eclipse can happen once every 1-2 years. This makes them very rare events.
5-Almost identical eclipses occur after 18 years and 11 days. This period of 223 synodic months is called a saros.
6-During a total solar eclipse, conditions in the path of totality can change quickly. Air temperatures drop and the immediate area becomes dark.
7-There is another type of solar eclipse, known as a hybrid eclipse, which shifts between a total and annular eclipse depending on where you view it from on Earth. These are comparatively rare.
8-The speed of the Moon as it moves across the Sun is approximately 2,250 km (1,398 miles) per hour.
9-If you are at the North or South Poles, you cannot view a total solar eclipse.
10-In ancient times, people thought an eclipse was a sign that the gods were angry or that bad things were about to happen.
11-During a total solar eclipse day time looks more like twilight.
Explanation:
Your welcome.
Without ground tissue in Leaves, the plant will what?
Answer: It can be divided into three classes based on the nature of the cell walls, Parenchyma, collenchyma and Sclerenchyma. Ground tissue provides support, performs photosynthesis (in some plants) and stores food. So, without ground tissue, it would be difficult for the plant to survive.
Explanation:
1. What characteristic of steel wool acts to speed up thus reaction?"
1 point
strength/concentration
increased surface area
increased temperature
Answer: It actually takes hydrogen hydroxide, otherwise known as H2O or water, to create rust. When steel wool is wet, the water seeps into the metal's tiny gaps.
Explanation:
What are limitations that logistic model has?
Answer:
Explanation:
Logistic regression is also vulnerable to overfitting. It cannot be applied to a non-linear problem. It will perform poorly with independent variables which are not correlated to the target and are correlated to each other.
is iodine a non-metal or metal
Answer: non metal
Explanation:
Answer:
non-metal.
Explanation:
its a liquid.
Rectangle JKML is rotated clockwise around point P. What is the angle of rotation? 45° 90° 180° 360°
Answer:
the awnser is a:45 degree
Explanation:
Answer: a= 45
Explanation:
Hope this helped
What determines the vast majority of characteristics in an atom?
Answer:
The vast majority of an atom's properties are determined by the number of electrons (or protons) that an atom has
Explanation:
Drag the numbers to put the following steps in the correct order.
As electrons move down the ETC, a H+ gradient is made.
The Krebs cycle produces ATP, NADH and CO2.
Ht pass through the ATP synthase to make ATP.
NADH gives electrons to the ETC.
In glycolysis, glucose is split into two pyruvate and makes some ATP.
Answer:
4, 2, 5, 3, 1
4 (As electrons move down the ETC, a H+ gradient is made), 2 (The Krebs cycle produces ATP, NADH and CO2), 5 (H+ pass through the ATP synthase to make ATP), 3 (NADH gives electrons to the ETC), 1 (In glycolysis, glucose is split into two pyruvate and makes some ATP)
In glycolysis, glucose is split into two pyruvate and makes some ATP. (GLYCOLYSIS)The Krebs cycle produces ATP, NADH and CO2. (KREBS CYCLE)NADH gives electrons to the ETC. (ELECTRON TRANSPORT CHAIN)As electrons move down the ETC, a H+ gradient is made. (ETC)H+ passes through the ATP synthase to make ATP. (ATP SYNTHASE)Explanation:
The correct steps are as follows:
NADH gives electrons to the ETC.The Krebs cycle produces ATP, NADH and CO2.In glycolysis, glucose is split into two pyruvate and makes some ATP.Ht pass through the ATP synthase to make ATP.As electrons move down the ETC, a H+ gradient is made.What is glycolysis? Glycolysis is the process in which glucose is broken down to produce energy. It generates two molecules of pyruvate, ATP, NADH and water. The process takes place in the cytoplasm of a cell and does not require oxygen. It occurs in both aerobic and anaerobic organisms.Thus, these are the correct order.
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where are neutron founded?
Answer:
By 1920, physicists knew that most of the mass of the atom was located in a nucleus at its center, and that this central core contained protons. In May 1932 James Chadwick announced that the core also contained a new uncharged particle, which he called the neutron. Chadwick was born in1891 in Manchester, England.
Explanation:
Answer:
In May 1932 James Chadwick announced that the core also contained a new uncharged particle, which he called the neutron. Chadwick was born in1891 in Manchester, England.
Explanation:
Neutrons come from fusion. Let's say you push two protons together enough for them to "touch", specifically for them to experience attraction from the strong nuclear force that is stronger than electrostatic repulsion.You know that neutrons are found in the nucleus of an atom. Under normal conditions, protons and neutrons stick together in the nucleus. During radioactive decay, they may be knocked out of there.
How can temperature and pH affect enzymes?
Answer:
raising temperature generally speeds up a reaction, and lowering temperature slows down a reaction. extreme pH values can cause enzymes to denature.
enzymes work best within specific temperature and pH ranges, and sub-optimal conditions can cause an enzyme to lose its ability to bind to a substrate.