How do heart and the lungs work together?
The right side of your lungs gets blood from your body and then it advances to pump it to the lungs. Then the lungs fill up the blood with oxygen and sends it to the heart. The left side of the heart gets the blood from the lungs and pumps it out to the body.
Why are unstained basic dyes more successful in staining bacteria than acidic dyes?
Unstained basic dyes more successful in staining bacteria than acidic dyes because of the presence of different charges in them.
We know that the acidic dyes are negatively charged and the basic dyes are positively charged. Also, the cell walls of the bacteria and most of the organisms are negatively charged. When the bacterial cell wall are stained with acidic dyes, they do not get attracted since the both are similarly charged. While as when the basic dyes are used to stain the bacteria, the negatively charged bacterial cell wall gets attracted to the positive charge of the basic dyes.
There, basic dyes are considered to be more convenient for staining of the bacteria.
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How many protons electrons and neutrons does the following Isotope contain 18 f -
According to the Periodic Table, the Isotope of Fluorine ¹⁸F⁻ contains
9 number of protons that is p⁺ = 9; 9 electrons that is e⁻ = 9; and10 neutrons. That is n° = 10;How did we arrive at the number of neutrons?Recall that the Mass number of Fluorine as established in the Periodic Table is 18.998 which is approximately 19.
Let the Mass be M...........1
Recall that the Number of protons is equal to the Atomic number (which is 9)
It is also established that the number of electrons is equal to the Atomic number (which is 9).
Let Atomic Number be A..........2
To calculate the number of neutrons we must Remove Atomic Number from Mass Number.
Hence Number of Neutrons = M - A..........3
Which is:
19 -9
= 10
Hence the number of Protons, electrons and neutrons for Fluorine ¹⁸F⁻ is 9, 9, and 10 respectively.
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Name two properties that may make it difficult for a molecule to cross the lipid bilayer without help.
Hydrophilicity and large size are the two properties that does not allow a molecule to cross the lipid bilayer without help.
Hydrophilicity is the property of loving water. The molecules that can easily interact with water are called hydrophilic. These are generally the polar molecules. The phosphate head of the lipid bilayer is also hydrophilic. Other examples are: alcohol, ammonia, urea, etc.
Lipid bilayer is the plasma membrane that surrounds the cells. It consists of two leaflets of lipids with their tails facing each other and the hydrophilic heads interacting with the outer environment. The lipid bilayer can also form liposomes apart from the cell membrane.
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1
Select the correct answer from each drop-down menu.
A researcher conducts an experiment on the secretion of a particular hormone In mice. Scientists Inject mice with a substance that
stimulates the production of the hormone. The scientists then test the levels of hormones produced by the mice. The tool used to
measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. This tool makes
measurements, but the measurements aren't
qualitative
reliable
valid
Reset
Next
Answer:
Reliable; Valid
Explanation:
The tools measurements are reliable because any of the values that falls higher or below X by 10points can be considered as the actual level. However, the actual measurements are not valid because a deviation 10points from the actual value is too wide and leaves room for errors.
What should the reader study to make inferences about the personality traits of people in a text? Check all that apply.
Answer: Action thoughts words
In the electron-transport chain in chloroplasts, which molecule serves as the final electron acceptor?.
In the electron transport chain in chloroplasts, NADP+ is the molecule serves as the final electron acceptor.
Oxygen serves as the ultimate electron acceptor (O2). Since oxygen has a strong affinity for electrons and a high electronegativity, it is the perfect acceptor for low-energy electrons. With the help of the electrons, hydrogen is joined to oxygen to produce water, which is the end result.All green plants have a component inside their chloroplasts called chlorophyll, which captures sun energy and is utilised to create food. produces NADPH and molecular oxygen (O2) from water by photolysis.Instead, the thylakoid membrane—a third separate membrane that creates a series of flattened disclike sacs called the thylakoids—contains the electron-transport chains, photosynthetic light-capturing systems, and ATP synthase.To learn more about chloroplasts.
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What are the two reasons why we should study the history of biology?
to learn from past mistakes
to be able to study the solar system
to do better research papers
to be able to understand complex topics
We should study biology because to able to understand complex.
What are three advantages of studying ?The primary focus of biology research is life, first and foremost. Second, it offers a comprehensive, scientific explanation of how all living and nonliving organisms interact with one another. Third, it provides information about the variety of life forms.
Biology tell us about how we evolved , how the life came on earth , how our body performs functions and how we are able speak etc. So that is why it is important to study biology.
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For an enzyme to catalyze a reaction there must be a specific fit between the __________ and the enzyme's __________.
Answer:
1 Substrate
2 Active center
1. Parasites live and feed on other creatures known as
Answer:pray
Explanation:
which property of water explains why it has all the other unique properties
The property of water explains that it has all the other unique properties is polarity.
What are the properties of water?
Water have many unique properties such as cohesion, polarity, surface tension, adhesion, high specific heat and the last one is evaporation cooling. Polarity shows that both the sides of water molecule is charged slightly and this is due to the reason that oxygen is more electronegative as compared to hydrogen.
Hydrogen bonds are responsible to hold the molecules of water combindly and surface tension is created due to cohesion. This is known as cohesion.
Therefore, property of water explains why it has all the other unique properties is polarity.
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A 1.8 g potato core is submerged in sugar water. When it is removed, its mass is 1.6 g. What is the
percentage loss of the potato's mass? Round your answer to the nearest hundredth of a percent.
The percentage loss of the potato's mass is 11.111 % when rounded-off to the nearest hundredth of a percent.
The potato core weighing 1.8 g is submerged in sugar water and after removing it from the water, its mass becomes 1.6g. Therefore, the percentage loss of the potato's mass can be determined by the following calculation:-
(1.8 - 1.6) / 1.8 x 100 = 0.2 / 1.8 x 100 = 11.111 % (rounded-off to the nearest hundredth of a percent)
This loss in potato's mass happens due to exosmosis through which water escapes from the potato into the sugar water.
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Name two properties that may make it difficult for a molecule to cross the lipid bilayer without help.
The properties are the size of the molecules and charge of large polar molecules
What characteristic of the cell membranWhate permits some molecules to flow through easily but not others?The primary characteristic of the cell membrane is selective permeability, which refers to the fact that some substances can easily penetrate it but not others. Small molecules that are nonpolar (have no charge) can diffuse over the membrane with ease, whereas ions and bigger molecules usually cannot.
The size and charge of large polar molecules makes it too difficult to pass through the non polar region of the phospholipid membrane without help from transport proteins.
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Denise's data revealed that lightning bugs come out more during the night than in the day. What is the next process of the scientific method for Denise?
The next process of the scientific method for Denise is to make a conclusion based on her findings.
What is the scientific method?The scientific method is a method of discovering knowledge about the natural world based on making falsifiable predictions or hypotheses, testing them empirically and developing theories that match known data from repeatable physical experimentation.
The scientific method is made up of the following steps:
Making an observation/asking a questionConstruction of a hypothesisTesting the hypothesis via experimentationAnalysing the data of the resultsMaking a conclusionAccording to this question, Denise data revealed that lightning bugs come out more during the night than in the day. This means she had already gone through the steps of the scientific method up to analysis of data.
Therefore, the next process of the scientific method for Denise is to make a conclusion based on her findings.
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Which is an example of Gram-positive bacteria
Answer:
Streptococci are Gram-positive
Sun
Mon
30/86
Day of the week
High temp.
(CPF)
Forecast Sunny Partly cloudy Cloudy
Relative humidity 29%
90%
27.2/81
Tues
40%
Weds Thur
30/80 25.6/78 25.6/78
Rain
Fog
100%
100%
Fri
Partly cloudy Sunny
30%
OB. There will be a high level of air pressure on that day.
O C. There will be a low level of water vapor in the air on that day.
OD. There will be a high level of water vapor in the air on that day.
Sat
27.2/81 29.4/85
70%
The meteorologist talked about how humidity affects weather and then predicted the humidity for the next week. Knowing that the amount of humidity would affect the coming weather
what does the amount of humidity on Tuesday indicate?
● A. There will be a low level of air pressure on that day.
Answer:
Mostly Sunny then Isolated T-storms. High: 90 °F. Sunday Night. Sunday Night: Isolated showers and thunderstorms. Partly cloudy, with a low around 73. Tuesday Night: Partly cloudy, with a low around 44. Northwest wind 5 to. Partly Cloudy. Low: 44 °F. Wednesday. Wednesday: Mostly sunny, with Moderate. Weather: Partly sunny until 12 p.m., then mostly cloudy. A chance of showers and a slight chance of thunderstorms. Thunderstorm Potential: ok.
Explanation:
or reduce severity of illnesses caused by both viruses and
bacteria.
4. Name three changes in agriculture that occurred during the Industrial Revolution.
In Britain, the Industrial Revolution was made possible by the Agricultural Revolution of the 18th century.
The output of food was increased as a result of new farming methods and enhanced cattle breeding. Increased population and better health were made possible by this. A push toward enclosure was also influenced by the new farming methods. Barley was planted next, then turnips, then wheat, and in the third year, clover and ryegrass were undersown. In the fourth year, the ryegrass and clover were harvested for grazing or used as feed.The output of food was increased as a result of new farming methods and enhanced cattle breeding. This led to a population boom and improved health.
A push toward enclosure was also influenced by the new farming methods. After 1750, the first Industrial Revolution got started in Great Britain.
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please help me on this science question
Answer:
what is the question?
Explanation:
please send the photo or write the question directly
What structure in the hypothalamus receives information about light from the retina and routes it to structures of the brain that regulate biological rhythms?.
Suprachiasmatic nucleus (SCN) receives information about light from the retina and routes it to structures of the brain that control biological rhythms.
The suprachiasmatic nucleus (SCN) is a cluster of hundreds of cells within the hypothalamus that receives information about light exposure directly from the eyes and controls your behavioral rhythm.
The suprachiasmatic nucleus (SCN) is a bilateral structure in the hypothalamus's anterior region. It is the principal pacemaker of the circadian timing system, regulating the majority of the body's circadian cycles. The SCN is served by a number of afferent neural pathways. The retinohypothalamic tract, which originates from photosensitive ganglion cells in the retina, is its main tract. Efferent projections from the suprachiasmatic nucleus innervate tissues such as the pineal gland, which produces melatonin to induce sleep throughout the night.
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I need to know what’s the placement of these things for my Science class
Given below is the explanation of a model depicting how food changes during the process of digestion and exercise:
Food digestion occurs in the stomach and the intestines.Matter from the food is broken down by chemical reactions.This results in energy.Exercise takes place in the muscle cells.Matter from the food is built up by physical changes.This results in carbon dioxide production due to anaerobic respiration in the muscles that leads to the accumulation of lactic acid.In order to be absorbed into the watery blood plasma, large, insoluble food molecules must be broken down into smaller, water-soluble food molecules during digestion. These tiny molecules enter the bloodstream through the small intestine in some organisms.Ingestion, propulsion, mechanical or physical digestion, chemical digestion, absorption, and feces are the six steps in the digestion process.Exercise is a type of physical activity that improves or maintains overall health and wellness as well as physical fitness.It is done for a variety of objectives, such to promote strength and growth, build muscles and the cardiovascular system, refine athletic abilities, lose or maintain weight, enhance health, or just for fun.Learn more about digestion here:
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the loop between helices 6 and 7 binds the ligand (hormone) on the same side of the membrane where the n-terminus of the protein is located. where would one expect to find the c-terminus?
The n-terminus located at the end of a polypeptide. The C-terminus is the end of an amino acid chain (protein or polypeptide), terminated by a free carboxyl group (-COOH).
Refers to the free carboxylic acid group at the end of a protein. The initial amino acid in a protein is represented by the N-terminus, while the last amino acid is represented by the C-terminus.The free amine group (-NH2) found at the end of a polypeptide is referred to as the N-terminus, which is also referred to as the amino-terminus, NH2-terminus, N-terminal end, or amine-terminus.The free amine group (-NH2) found at the end of a polypeptide is referred to as the N-terminus, which is also referred to as the amino-terminus, NH2-terminus, N-terminal end, or amine-terminus.To learn more about C-terminus.
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14. List two methods that can be used to measure the pH of a solution.
what is the study of meteors and comets
Describe how a camel and a llama could have descended from a common ancestor and become two different species. (6 marker)
Description on camel: Desert habitat, Lives in North Africa
Description on camel: Mountain habitat, Lives in south America
Camels and llamas are both biological members of the Camelidae family. Three different kinds of camels, llamas, alpacas, vicuas, and guanacos are among the family's seven members. Essentially, camels and llamas are related and have many traits in common.
How similar are llamas and camels to one another?Dromedary camels, Bactrian camels, wild Bactrian camels, llamas, alpacas, vicuas, and guanacos are the six varieties. Yes, llamas and camels are related. In Central and South America, you are unlikely to see many camels, but you may see any of the other camelid species. Llamas did not develop from camels, despite the fact that they are both members of the same family. The llama was most likely domesticated from the guanaco, according to the genetic data. Around 5 million years ago, the genus Hemiauchenia split into two genera, Peleolama and Lama, during the early Pliocene.
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Which statements about Pangaea are true according to widely accepted theories? Check all that apply.
The statement that is true as per widely accepted theories is that the landmass of Pangaea split into separate continents over time. The correct option is B.
What is Pangaea theory?According to National Geographic, the Pangaea theory proposed that the tectonic plates that make up the planet's outer crust drifted over the inner layers until they merged as a landmass surrounded by a massive ocean called Panthalassa.
The existence of Pangea was first proposed by German meteorologist Alfred Wegener in 1912 as part of his theory of continental drift. Its identity is inferred from the Greek pangaia, which means "the entire Earth."
Thus, the correct option is B.
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Your question seems incomplete, the missing options are:
Pangaea existed two hundred thousand years ago.The landmass of Pangaea split into separate continents over time.Pangaea was discovered by Christopher Columbus.Pangaea was surrounded by the waters of the ocean.The coastline of Pangaea stayed consistent over time.What most occur for protein translation to begin
Answer:
see the picture attached...
how mutualism and biodiversity are related
A sort of interaction known as mutualism involves both parties gaining something from the other. For instance, a butterfly carries pollen from one plant to another that is far away after receiving nectar from the blossom of a plant, which is a rich source of nourishment. John N. Thompson proposed the following thought experiment to help people consider the pervasiveness of mutualism: try to picture a plant species that can survive in its natural environment without also utilizing the genomes of a mitochondrion, a chloroplast, several mycorrhizal fungi, numerous insects to pollinate it, and numerous species of birds to disperse its seeds.
Mutualistic interactions are thought to have played a significant influence in the diversification of life on Earth. Mutualism is present everywhere.
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There is a growing segment of people who want food that tastes good and is also good for them. This healthy-living segment represents which segmentation base?.
Surface currents are a result of: (Check all that apply.)
The salinity level
Global wind patterns
Shape of ocean basins
Earth's rotation
Surface currents are a result of global wind patterns and the earth's rotation. The correct options are B and D.
What are surface currents?Surface currents are heat current that travels from one direction to another direction in the whole world. They move heat currents from tropic to polar regions.
These currents are caused by three reasons, these reasons are rotation of the earth, the global wind system, and the position of landforms. The gulf of the stream brings warm water to the eastern coast.
Thus, the correct options are B, Global wind patterns, and D, Earth's rotation.
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What type of transport requires energy to carry a nutrient from outside the cell, through the cell membrane, and into the cell?.
Answer:
Active transport
Explanation:
Active transport regulare energy (ATP)