Which of the following is TRUE about the polarity of water?
(1 Point)
only H atoms have electrons
electrons are more strongly attracted to the H atom
electrons are more strongly attracted to
the O atom
electrons are shared equally between all atoms within the molecule
Answer:
electrons are more strongly attracted to the O atom
Explanation:
It is true that in the in the polarity of water, electrons are more strongly attracted to the oxygen atom compared to the hydrogen atom.
In a water molecule, there are two atoms, hydrogen and oxygen. These atoms are bonded together by covalent bonding. Oxygen is more electronegative compared to Hydrogen. It pulls the shared electron more itself compared to hydrogen. This leaves a net negative charge on the oxygen and net positive charge on the hydrogen. The charge separation makes water polar.The properties of a substance are not affected by chemical reactions.
A) true
B) false
Answer:
A physical property is a characteristic of matter that is not associated with a change in its chemical composition. Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity.
Explanation:
The statement "the properties of a substance are not affected by chemical reactions" is false.
What are physical and chemical properties?A substance's physical property is a quality that can be seen or quantified without affecting the substance's identity. Color, density, hardness, and melting and boiling points are examples of physical qualities.
A quality of matter that is unrelated to a change in its chemical makeup is called a physical property. Density, color, hardness, melting and boiling points and electrical conductivity are a few common examples of physical qualities.
Chemical changes result in new compounds with different properties from the original ones, as well as new particles and maybe altered particle numbers.
Therefore, the statement is false.
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Which of the careers indicated below would appeal to Tracy's interests?
Tracy is interested in plants. She would like to use technology to create new and resistant species.
O environmental analyst
O food scientist
I
O agricultural scientist
O horticulturist
Answer:
Horticulturist
Answer:
horticulturist
Explanation:
on e d g e n u i t y
When it contracts, the difference in air pressure forces air into the body_____________ *
cell
tissue
organ
organ system
Answer:
body cell
Explanation:
capillaries are used to transport oxygen to the cells of the body hence when the capillaries contract they increase pressure hence the oxygen diffuses into the body cells with the aid of tissue fluid
Which steps do scientist take when investigating the natural world
please help 20 points and brainliest if correct!!!!
Answer:
The egg is gaining mass.
Explanation:
The reason is because the egg wants to reach equillibrium with the syrup. So the egg absorbs the syrup to equalize the concentration of the water outside the membrane.
Answer:
Its the egg. The egg would gain mass
Explanation:
Hope this helps ( Pls brainlyist!) Thanks!
A communication plan can help family members stay in touch during an emergency. (3 points) True False
Answer:
true
Explanation: I got it right on my test
Answer:
I think it's true
Explanation:
Adding and removing energy can change the physical properties of a substance.
A) true
B) false
Answer: True.
Explanation: Energy is being removed from the substance as it changes state. As energy is added to the liquid, particles throughout the liquid move faster. Boiling. When particles move fast enough to break away from other particles, they evaporate and become gas.
If a fault is currently locked, it is not moving. True O False
Answer:
if it is not slipping, then no
Explanation:
A locked fault is a fault that is not slipping because frictional resistance on the fault is greater than the shear stress across the fault (it is stuck). Such faults may store strain for extended periods that is eventually released in an earthquake when frictional resistance is overcome. Have a great day! :)
ill give you a brainliest if it is right
Answer:
Copper
Explanation:
Lead was once used to make pipes. It comes from the mineral galena, but as we now know it is poisonous, copper is used instead. Copper comes from minerals like bornite and chalcopyrite and it isis also used for electrical wiring.
Ace Carlos
The diagram is a model of a cellular process that occurs in the nucleus. What is the purpose of the process modeled?
Transcription copies DNA into RNA. Messenger RNA is transcribed DNA that encodes proteins. Therefore, a new mRNA strand is synthesized here and the process is transcription.
What is transcription?The act of producing a copy of the genetic information that is contained in a strand of DNA and converting it into a complementary strand of RNA (also known as messenger RNA or mRNA) with the assistance of RNA polymerases is referred to as transcription. This process is carried out in the cytoplasm of prokaryotic cells. This process takes place within the nucleus of eukaryotic cells.
There are three stages that make up the process of transcription: initiation, elongation, and termination.
First Step. RNA polymerase is responsible for opening up the DNA double helix (initiation)The Following Step RNA The nucleotides in the DNA template strand are the starting point for the formation of nucleotides (Elongation)The final step The newly produced mRNA is then exported from the nucleus (termination)
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why some animals (insects, birds, primate) help angiosperms to do pollination and why they don’t do it for gymnosperms?
The purpose of photosynthesis is to Release chemical energy in the form of ATP for humans Release chemical energy in the form of ATP for humans Convert solar energy to chemical energy stored in sugar Convert solar energy to chemical energy stored in sugar Build proteins in plants
Answer:
Convert solar energy to chemical energy stored in sugar
Explanation:
Photosynthesis is the process whereby green plants manufacture their food, which is in the form of a sugar (glucose). The photosynthetic process, generally, combines carbon dioxide (CO2) and water (H2O) in the presence of sunlight, which provides energy used.
The sugar (glucose) produced stores chemical energy in its chemical bonds. In a nutshell, photosynthesis converts SOLAR ENERGY (from sun) into CHEMICAL ENERGY (in glucose), which is the purpose of the process for organisms that undergo it.
Animal products (such as eggs, meat, poultry, and cheese) provide us with ___________.
a. lipids
b. proteins
c. carbohydrates
d. nucleic acids
Answer:
B
Explanation:
Meat is a protein
How do the parts of a cell
enable it to survive?
The photo shows a unicellular organism called a diatom.Which structures of this organism work together to carry out all of its life functions?
A: Tissues
B: specialized cells
C: organ systems
D:organelles
Answer:
D
Explanation:
Im taking the quiz rn and hope this helps
Diatoms are photosynthesizing algae having a siliceous skeleton (frustule) and are found in almost every aquatic environment including fresh and marine waters, soils, in fact almost anywhere moist.
Cell Organelles present in Diatoms work together to carry out all the life functions.
What is Diatom?Diatoms as mentioned above are unicellular organisms which occur either as solitary cells or in colonies and can take different shapes.
Individual cells range in size from 2 to 200 micrometers.
A unique feature of diatom anatomy is that they are surrounded by a cell wall made of silica (hydrated silicon dioxide), called a frustule. These frustules have structural coloration due to their photonic nanostructure, prompting them to be described as "jewels of the sea" and "living opals".
Movement in diatoms primarily occurs passively as a result of both ocean currents and wind-induced water turbulence.
Similar to plants, diatoms convert light energy to chemical energy by photosynthesis, but their chloroplasts were acquired in different way.
Diatoms are classified as eukaryotes due to presence of cell organelles i.e. with a nuclear envelope-bound cell nucleus, that separates them from the prokaryotes archaea and bacteria.
Diatoms are a type of plankton called phytoplankton, the most common of the plankton types. Diatoms also grow attached to benthic substrates, floating debris, and on macrophytes.
They comprise an integral component of the periphyton community.
Another classification divides plankton into eight types based on size.
Diatoms are used to monitor past and present environmental conditions, and are commonly used in studies of water quality.
What are Cell Organelles?Cell organelles are specialized structure which perform specific functions in cells.
Among the more important cell organelles are the nuclei, mitochondria, and ribosomes, which assemble proteins.
Based on the presence and absence of organelles, cells are divided into Prokaryotic and Eukaryotic cells.
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finish the passage
The reactants for cellular respiration are the __________ for photosynthesis. The products of cellular respiration are the _______
of photosynthesis.
The reactants for cellular respiration are the glucose and oxygen for photosynthesis. The products of cellular respiration are carbon dioxide, water, and ATP of photosynthesis.
Which explanation accurately describes how matter is transformed within the process of photosynthesis?
A) In the light reactions, carbohydrates release hydrogen atoms and form carbon dioxide. The hydrogen atoms join with oxygen to form water molecules in the Calvin cycle.
B) In the Calvin cycle, carbohydrates release hydrogen atoms and form carbon dioxide. The hydrogen atoms join with oxygen to form water molecules in the light reactions.
C) The hydrogen and oxygen atoms of water are split in the Calvin cycle, and oxygen is released. In the light reactions, hydrogen atoms join with the carbon and oxygen atoms of carbon dioxide to form carbohydrates.
D) The hydrogen and oxygen atoms of water are split in the light reactions, and oxygen is released. In the Calvin cycle, hydrogen atoms join with the carbon and oxygen atoms of carbon dioxide to form carbohydrates.
Answer:
D) The hydrogen and oxygen atoms of water are split in the light reactions, and oxygen is released. In the Calvin cycle, hydrogen atoms join with the carbon and oxygen atoms of carbon dioxide to form carbohydrates.
Explanation:
Photosynthesis is the process by which plants produce carbohydrates (sugars) from carbon dioxide in the atmosphere and water using the energy of sunlight. The process of photosynthesis occurs in two stages: (i) the light-dependent stage and (ii) the light-independent stage.
Light reactions: In this stage, the hydrogen and oxygen atoms of water are split in the light reactions, and oxygen is released. Also, the energy storage molecule ATP and the reduced electron carrier NADPH are produced.
Light-independent reaction or Calvin cycle: in this stage, carbon atoms from CO₂ are incorporated into ribulose-5-phosphate and used to produce glyceraldehyde-3-phosphate, a three-carbon sugar using the energy of ATP and NADPH from the light reactions. Essentially, hydrogen atoms join with the carbon and oxygen atoms of carbon dioxide to form carbohydrates.
Answer:c
Explanation:
Please help me.
Write the equation for photosynthesis.
Answer:
6CO2 + 6H20 + (energy) → C6H12O6 + 6O2 Carbon dioxide + water + energy from light produces glucose and oxygen.
Explanation:
hope this help :)
Answer:
6CO2 + 6H2O → C6H12O6 + 6O2
Explanation:
carbon dioxide + water → sugar + oxygen
what type of cell division in gametes?
Answer:
meiosis
Explanation:
branliest pls
Actinobacteria sp. are fermenting organisms, which do not require oxygen to survive. These organisms break down organic material and convert it to inorganic material. Which part of the carbon cycle does this describe?
O photosynthesis
O respiration
O decomposition
O assimilation
Answer:
The correct answer is C) decomposition!!
Explanation:
Hope this Helps!!
God Bless!!
~DuffyDuck~
Decomposition describes this part of carbon cycle. So, the correct option is (C).
What is Carbon cycle?
Carbon cycle is describes as the process in which carbon atoms travel from the atmosphere to the Earth and return back into the atmosphere. This cycle is important for maintaining a stable climate and carbon balance on the planet.
Carbon cycle affect the net amount of carbon in the atmosphere at given period of time and the rate of carbon exchange between different reservoirs on the Earth’s surface. Carbon modulates the climate change by the regulation of atmospheric CO[tex]_2[/tex] which represents one of the most important ecosystem services of value to human.
There are main processes involved in the carbon cycle:
PhotosynthesisExchangeRespirationSedimentationCombustion ExtractionThus, Decomposition describes this part of carbon cycle. So, the correct option is (C).
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Which activity uses ATP to raise body temperature?
shivering
storing fats
panting
hibernating
Answer:
shivering it creates energy, 60% of which is wasted on heat
Shivering uses ATP to raise body temperature. So the correct option is A.
What is shivering?Without your conscious involvement, your body controls how it reacts to stress, illness, heat, cold, and other situations. When you are too hot, for instance, you sweat to cool the body, but you don't have to think about it. And you shiver naturally when you're chilly.
Your muscles quickly contract and release, which results in a shudder. Your body naturally tries to warm up as it becomes cooler, which is why you are experiencing this uncontrollable muscular activity.
The only reason you shiver, though, is in response to the cold. You may tremble and shiver due to a variety of factors, including illness. You could start to shiver as the temperature falls below what your body considers comfortable. Your body's surface heat production might increase by around 500% when you can see yourself shivering. However, shivering will only temporarily warm you up.
Your muscles will eventually run out of glucose (sugar) to use as fuel and become too exhausted to contract and relax after a few hours. The temperature during which shivering begins varies depending on the individual. Children, for instance, may shiver more readily in reaction to higher temperatures than an adult with greater body fat would.
Therefore the correct option is A.
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A substance that undergoes a change in a chemical reaction is
a product.
an enzyme.
a chemical.
a reactant.
Answer:
Reactants
Explanation:
What technology was used to map features on the seafloor?
Echo sounding is referred to as the technology which was used to map features on the seafloor.
What is Echo sounding?This is referred to as the device which is used to determine the depth of water by the transmission of sound impulses from the vessel to the seafloor and produces accurate results.
Echo sounding is used to detect the different features in the seafloor with the use of this technology due to its use of sonar for ranging and a submarine is used in some situations for this process which is why it was chosen as the correct choice.
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Which activity uses ATP to lower body temperature?
shivering
panting
sheltering in the shade
fluffing up feathers
I think its C
Answer:
The correct answer is panting, I just took the test and got it correct.
Explanation:
Hope this helps :)
1pt What is the name of the region along a fault where a rupture that caused an earthquake occurred?
A. epicenter
B. focus
C. Mercalli
D. Richter
Answer:
i think its either a or b
Explanation:
sry if im rong
Create a personal plan of preventative health and dental management. What steps can you take to maintain your health and wellness?
answer: It is important to see my doctor regularly for an annual checkup. I will ensure that I receive all vaccinations so that I can prevent serious diseases such as mumps and measles. I will also perform monthly self-exams to check for lumps so that I can detect cancer early. I will visit my dentist twice a year for cleanings, and once a year for a dental exam, so that problems such as cavities can be taken care of promptly.
Answer:It is important to see my doctor regularly for an annual checkup. I will ensure that I receive all vaccinations so that I can prevent serious diseases such as mumps and measles. I will also perform monthly self-exams to check for lumps so that I can detect cancer early. I will visit my dentist twice a year for cleanings, and once a year for a dental exam, so that problems such as cavities can be taken care of promptly.
Explanation: On Edge 2020 also you can put this on there, but in your own words
Getting an annual or physical checkup with a doctor
Having a yearly dental examination
Keeping up to date on vaccinations
Self-examinations of breasts or testicles
Seeing a doctor or dentist when a problem occurs
Getting a yearly eye exam
Create a personalized plan for preventive care to maintain your health and well-being.
Plan regular checkups, get the proper shots, and do self-tests. Adopt a healthy lifestyle by getting enough sleep, controlling your stress, and eating a balanced diet. It is recommended to have a cleaning and checkup at the dentist twice a year. Adopt proper oral hygiene practices, such as brushing, flossing and using mouthwash.
Follow screening recommendations and put mental health first. Keep yourself hydrated, maintain proper hygiene and seek reliable health information. It is essential to talk to health care professionals and adapt their recommendations to your needs. You can actively take care of your health by taking these steps.
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Which of the following distinguishes why gray wolves and Labrador retrievers are still classified as the same species?
Gray wolves and Labrador retrievers can mate and produce offspring.
Gray wolves and Labrador retrievers often run in packs together.
Gray wolves and Labrador retrievers look very similar.
Gray wolves and Labrador retrievers are both used and trained like pets.
Answer:
Gray wolves and Labrador retrievers can mate and produce offspring
Explanation:
hope it helps
Answer:
Gray wolves and Labrador retrievers can mate and produce offspring.
Explanation:
Dogs are highly domesticated versions of wolves, but the two groups can still mate and produce offspring, so they are members of the same species. Edge 2021
The water potential of a plant cell is –400 kPa. The cell is put in a solution with a water potential of –650 kPa. Describe and explain what will happen to the cell.
Best answer gets brainliest!!
Which sex chromosomes do men and women inherit?
Answer:
women inherit the X chromosomes and men inherit the Y chromosomes
Explanation: