Answer:
Water has cohesive and adhesive properties.
Water molecules have strong cohesive forces due to their ability to form hydrogen bonds with one another. Cohesive forces are responsible for surface tension, the tendency of a liquid's surface to resist rupture when placed under tension or stress.
Adhesion and cohesion are important water properties that affects how water works everywhere, from plant leaves to your own body. ... Cohesion: Water is attracted to water, and Adhesion: Water is attracted to other substances.
Answer & Explanation:
The difference in electronegativity between oxygen and hydrogen atoms creates partial negative and positive charges, respectively, on the atoms.
Water molecules attract or are attracted to other polar molecules.
Molecules that do not dissolve in water are known as hydrophobic (water fearing) molecules.
Because of its extensive hydrogen bonding, water (H2O) is liquid over a far greater range of temperatures that would be expected for a molecule of its size. Water is also a good solvent for ionic compounds and many others because it readily forms hydrogen bonds with the solute.
Cohesion holds hydrogen bonds together to create surface tension on water.
Since water is attracted to other molecules, adhesive forces pull the water toward other molecules.
Water is transported in plants through both cohesive and adhesive forces; these forces pull water and the dissolved minerals from the roots to the leaves and other parts of the plant.
Key Terms:
hydrogen bonds: A weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.
adhesion: The ability of a substance to stick to an unlike substance; attraction between unlike molecules
cohesion: Various intermolecular forces that hold solids and liquids together; attraction between like molecules
hydrophilic: having an affinity for water; able to absorb, or be wetted by water
hydrophobic: lacking an affinity for water; unable to absorb, or be wetted by water
polarity: The intermolecular forces between the slightly positively-charged end of one molecule to the negative end of another or the same molecule.
how does chromatid cohesion as maintained by cohesin proteins differ in mitosis and meiosis?
Can someone please help me and not just answer for points
Answer:
it's the third answer because you separate the sequence every three letters
HELPP !!!
If a recessive trait is beneficial to an animal, what happens to the trait's proportion in the population?
It becomes more common
It becomes less common
It doesn't change much
Answer:
It becomes more common
Explanation:
Even if the trait is recessive if it is beneficial to a population then it will become more common because those with the trait are more likely to survive. For example, if a population of beetles lives on green grass and the dominant trait is for the beetles to be black and the recessive trait is green then the green ones will survive because the black beetles will be eaten first.
what is the main artery that carries blood to your brain
Pls help!
Explain how Community 1 and Community 2 compare with regards to species richness
(number of species)?
Explain how Community 1 and Community 2 compare with regards to species evenness
(proportion of each species)?
I need to see whole picture to help
I need all the blanks this is gonna take time so I will give a lot of points
Answer:
hope the pictures help
Explanation:
hope these are right and help you to understand :). An easy way to remember these are by Apple Tree and Car Garage for DNA replication where A always pairs with T and C always pairs with G. for RNA is Apple Under and Car Garage where A always pairs with U and C with G.
How does cellular differentiation benefit complex organisms?
Answer:
This is because of the fact that it causes changes in size, shape, metabolic activities as well as signal responsiveness of cells.
Explanation:
Answer:
Cellular differentiation is beneficial and important for complex organisms.
Explanation:
Cellular differentiation is how generic embryonic cells become specialized cells. This occurs through a process called gene expression. Gene expression occurs because of certain signals in your body, both inside and outside of your cells.
What is the difference between El Nino and La Nina in science terms of climate?
Answer:
El Niño impacts weather systems around the globe, triggering predictable disruptions in temperature, rainfall and winds. La Niña is the opposite – a cooling phase of ENSO that tends to have global climate impacts opposite to those of it. El Niño refers to the above-average sea-surface temperatures that periodically develop across the east-central equatorial Pacific. It represents the warm phase of the ENSO cycle. La Niña refers to the periodic cooling of sea-surface temperatures across the east-central equatorial Pacific.
Hope this helps
Answer:
Well, El Niño(warmer environment) impacts weather systems around the world, while La Nina(cold environment) tends to have global climate affects opposite to El Nino.
Johnny is drinking a glass of orange juice when he is informed that orange juice is acidic. He begins to panic, thinking his blood will soon turn to acid. Why should he not be worried?
A. Blood contains buffering agents which resist changes in pH.
B. Acids are not absorbed by the blood.
C. The stomach environment is basic, which neutralizes acids.
D. Acids are neutralized by saliva.
Answer:
B
Explanation:
blood only absorbs end products of digested food .
Johnny should not be worried because blood contains buffering agents which resist changes in pH (Option B).
What is blood?The blood is a fluid inside the circulatory system that contain different type of cells (e.g., red blood cells).
The blood served to maintain the internal equilibrium (homeostasis) of the body.The buffers in the blood include different types of proteins, bicarbonate/carbonic acid, and phosphate acid buffers.In conclusion, Johnny should not be worried because blood contains buffering agents which resist changes in pH (Option B).
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What is the molecule in this image?
Nucleic acid
A protein
A lipid
A carbohydrate
Answer:
a protein
Explanation:
amino acids are the monomers of proteins
Why does the rate of somatic cell division differ?
Answer:
The cells divide in order to replace the old and damaged cells, and so that the body of the living being can grow
Explanation:
Answer:
The skin cells prevent germs from coming in our bodies. Skin cells are very easily removed, so it needs to reproduce faster. Every single person both young and old has new cells every second replacing the old and dead cells in your body.
explain : Changes in temperature and humidity: skin helps to regulate body temperature, control moisture loss and maintain the balance of fluids. Pressure, blows and abrasion: skin recognises pain and alerts us to danger. It acts as a barrier and shock absorber.
Morwenna has always been overweight and Ammon has always been thin. If they both look at pictures of food, a brain scan is likely to show that Morwenna has ________ than Ammon. a. more activity in the limbic system b. more activity in the ventromedial hypothalamus c. less activity in the limbic system d. less activity in the ventromedial hypothalamus
Answer:
???????
Explanation: i can't give you the exact answer but um i think 'cause she's more fatter than Ammon
Where is the foramen in this diagram of a bone from the vertebral column?
A. option A
B. option B
C. option C
D. option D
Answer:
What is C. option C
Explanation:
See Diagram of vertebral column I have provided below.
Have a happy day! <3Miss Hawaii
Help me pls. ‼️‼️‼️‼️‼️In your own words explain the concept of sea floor spreading
Answer:
No biologist but this is what my teacher told the class during the weel
Explanation:
Organisms would expand due to the movement of tectonic plates while bacteria would settle there
how you would use the light microscope to view a wet mount of a protest, assuming the microscope is plugged in and that the light source is on
Answer:
1.Collect a thin slice of your sample and place it on a clean, dry slide 2.Place one drop of water over your sample 3. Place the coverslip at a 45-degree angle with one edge touching the water and let go 4. Your slide is ready to be viewed.
Explanation:
Hope It Help
NEED ASAP PLEASE
Explain the difference between microscopic and macroscopic protozoa.
Answer:
Microscopic organisms can be seen only under the magnification(microscope) whereas macroscopic can be visible by naked eye.
Explanation:
what four pathways are involved in the breakdown of glucose to carbon dioxide and water?
an organism that captures and consumes another organisms for nourishment is called an?
Answer:
The organism is called a predator and the organism captured, a prey.
Answer:
predation I think
Explanation:
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what organelle converts sunlight to chemical energy
Answer: Chloroplasts
Explanation: Chloroplasts turn light energy from the sun to sugar.
What determines whether a metamorphic rock is foliated or nonfoliated?
it's 3 i think. bbjghjhgsjsishgdjdj
what will be the result if a eukaryotic cell completes mitosis but does not undergo cytokinesis?
A cell that completed mitosis but does not undergo cytokinesis PRODUCES one cell with two nuclei, each identical to the nucleus of the parent cell. Cytokinesis is the last phase of cell division.
Cytokinesis is the process by which a parental cell divides its cytoplasm to produce two genetically identical daughter cells, each one containing one cell nucleus.
Cytokinesis occurs in both types of cell division, i.e., mitosis and meiosis.
In animal cells, cytokinesis occurs by the emergence of a contractile ring that appears just beneath the cell membrane.
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Explain why a person can survive if they exclusively eating a protein diet. What are the hazards if any?
Answer:
Risks of high protein diet
Explanation:
Some high-protein diets include foods such as red meat and full-fat dairy products, which may increase your risk of heart disease. A high-protein diet may worsen kidney function in people with kidney disease because your body may have trouble eliminating all the waste products of protein metabolism.
in a eukaryotic cell, where is most of the dna located?
the microorgansims which contains chlorophyll
How to use bacteria as a treatment for sewage waste
Answer:
Aerobic bacteria can be used to use the available oxygen in the water to degrade the pollutants in the waste and convert it into energy it can use for its metabolic processes.
skeletal muscle exhibits alternating light and dark bands called
Skeletal muscle exhibits alternating light and dark bands called a sarcomere
Skeletal muscle is having sarcomere having myofibrils which appear dark and light in the microscope.
What is skeletal muscle?Only thin filaments containing actin are present in isotropic bands, anisotropic bands are the darker bands (A bands).
Repeating sarcomere sections, which are visible under the microscope as alternating dark and light bands, make up myofibrils.
When a muscle contracts or relaxes, long, fibrous protein filaments called sarcomeres glide past one another. Because of this, skeletal muscle is also known as striated muscle.
Therefore in appearance due to myofibrils composed of the sarcomere look light and dark bands in the skeletal muscle under a microscope.
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Ở một loài thực vật: A- thân cao trội hoàn toàn so với a - thân thấp; B - quả đỏ trội hoàn toàn so với b - quả trắng.
hãy viết sơ đồ lai xác định tỉ lệ kiểu gen, kiểu hình ở các phép lai sau:
P: AaBb x aabb
Mọi người giúp em với
Answer:
Có 4 kiểu tổ hợp giao tử có thể có của bố mẹ AaBb.
Một nửa số giao tử có alen trội A và alen trội B; một nửa số giao tử còn lại mang alen lặn a và a lặn b.
Cả bố và mẹ đều tạo ra 25% mỗi loại AB, Ab, aB và ab.
Explanation:
A map of eastern North America, showing the pH of rainfall in the various states, indicates that the pH of rain in New York State varies from 4.22 to 4.40. According to these figures, the most acidic rainfall in New York has a pH of
Answer:
4.22
Explanation:
The lower the number, the more acidic.
Question 1 (1 point)
Which of the following is NOT something that can cause your core temperature to change?
Question 1 options:
Fevers caused by disease
Enzymes denaturing in your cells
When the external temperature gets really hot or cold
Energy produced by your muscles when you exercise
Question 2 (1 point)
Why is it so important to maintain a core temperature of 37°C?
Question 2 options:
Your core temperature doesn't stay at 37°C, it will actually change and reflect the temperature outside.
Your body can only make cells at 37°C, and we need cells because that is what our body is made of.
It is just best to keep that temperature so you don't shiver or sweat.
The enzymes in our cells work best at this temperature and these enzymes are needed to carry out all the reactions that happen in our body to keep us alive.
Question 3 (1 point)
What happens to your enzymes when they get too hot?
Question 3 options:
The enzymes denature and the active site alters, so the substrate can't fit in there properly and chemical reactions don't happen as fast.
The enzyme changes shape, but the substrate still fits in and the chemical reaction can still take place.
The enzyme dissolves and the pieces then need to be rebuilt before they can be used again.
Nothing, the enzyme can handle temperature changes in the body.
Question 4 (1 point)
Which organ is super important in helping you in both conserving heat and cooling your off?
Question 4 options:
Skeletal System
Excretory System
Respiratory System
Integumentary (Skin) System
Question 5 (1 point)
The __________ is the temperature-regulating center of the brain and can detect temperature changes to the blood as it flows through the brain.
Question 5 options:
Skin
Hypothalamus
Nervous system
Thymus
Question 6 (1 point)
Which of the following best describes how your muscular and skin systems work to warm you up if you get too cold?
Question 6 options:
Your muscles begin to contract fast and this movement helps you warm up
Small erector muscles work to raise the hairs on your skin. This helps trap the air close to the skin, goose bumps appear and the air acts as an insulator
blood vessels narrow keeping the blood away from the skin to keep you warm
Sweat glands release sweat to ensure you stay the proper temperature
Question 7 (1 point)
Which of the following best describes how your circulatory and skin systems work together to cool you off when you get too hot?
Question 7 options:
Your blood vessels (capillaries) dilate allowing blood to flow near the surface of your skin. This allows the heat to be released through your skin to help you cool off.
You begin to sweat which leaves salt on your skin after the sweat evaporates.
The hairs on your skin will lie flat to allow better evaporation of sweat and to allow the heat to be released into the air
Goose bumps show up to help your muscles contract to help cool you off
Question 8 (1 point)
If your core temperature falls too low, it is called __________________
Question 8 options:
hyperthermia
thermoregulation
hypothermia
dehydration
Question 9 (1 point)
Extreme tiredness and lethargy (slow, not moving much) are the first signs of someone experiencing hypothermia?
Question 9 options:
True
False
Question 10 (1 point)
When people exercise in hot weather, which of the following could happen?
Question 10 options:
People can acclimate to the hotter conditions over time producing more sweat that has lower salt levels
Homeostasis, this could cause their blood sugar levels to rise
Excessive sweating can lead to dehydration and heat stroke. Drinking lots of water can help prevent this situation from happening
Both A and C
1pregunta= 3
2pregunta=2
3pregunta=3
4pregunta= 3
5pregunta= 2
1. Enzymes denaturing in your cells cannot change the core temperature.
2. The enzymes in our cells work best when the core temperature is at 37°C .
3. When the enzymes get cold they denature and the active site alters.
4. Integumentary (Skin) System helps in both conserving heat and cooling off.
5. The Hypothalamus is the temperature-regulating center of the brain.
6. Small erector muscles work to raise the hairs which helps in warm up.
8. If your core temperature falls too low, it is called Hypothermia.
9. Extreme tiredness and lethargy are the first signs of someone experiencing hypothermia is True.
Enzymes are biological molecules, specifically proteins, that act as catalysts in various chemical reactions within living organisms.
1. Enzymes denaturing in your cells
2. The enzymes in our cells work best at this temperature and these enzymes are needed to carry out all the reactions that happen in our body to keep us alive.
3. The enzymes denature and the active site alters, so the substrate can't fit in there properly and chemical reactions don't happen as fast.
4. Integumentary (Skin) System
5. Hypothalamus
6. Small erector muscles work to raise the hairs on your skin. This helps trap the air close to the skin, goose bumps appear and the air acts as an insulator
7. Your blood vessels (capillaries) dilate allowing blood to flow near the surface of your skin. This allows the heat to be released through your skin to help you cool off.
8. Hypothermia
9. False
10. Both A and C
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Can someone please help me
Answer:
Answer is Q.No 1
(substitution)