Answer:
Independent Variable = The thing you change
Dependent Variable = The thing you measure
Explanation:
An independent variable is the thing that you are changing in your experiment to be able to get different results. For example, if a question says "What will happen to a cup of tea when you change the temperature of the water added to it?"... then the independent variable will be the temperature of the water.
A dependent variable is the thing that you are measuring. For example, if you are studying the amount of light absorbed from different surfaces, then the dependent variable is the unit of light absorbed, which would be measured in Au (Absorbance unit).
You can now take this knowledge and apply it to your question.
Which organic molecules serve as a catalyst in chemical reactions? O lipids O proteins onucleic acids carbohydrates
Answer:
Proteins
Explanation:
Are there any parts of the human body that get oxygen directly from the air and not from the blood?
Answer: yes.
Explanation:
The lungs are probably the only organ to receive the air directly. The lungs take the air, send it to the blood stream through the heart, then it gets sent to other body parts by the red blood cells.
In a crime scene, what would you place cocaine in found as evidence? And why?
-Small paper envelope
-Small cardboard box with cotton
-Paper bag
-Metal box
-Glass jar
-Plastic bag
Yo who gonna help me today
Answer:
The answer would be...
Explanation:
It reverses the order of bases in a DNA strand.
Hope this helps. Sry if I get it wrong!
What is a physical property? Give 2 examples.
Answer:
any measurable property like water and dirt
Explanation:
Answer:
(Hope this helps can I pls have brainlist (crown)☺️)
Explanation:
A physical property is a feature of matter that is independent of its chemical composition. Density, colour, hardness, melting and boiling temperatures, and electrical conductivity are all examples of physical characteristics.
Density, colour, hardness, melting and boiling temperatures, and electrical conductivity are all examples of physical characteristics. There is a change in the physical condition, form, or characteristics of the material in each of these cases, but no change in its chemical composition.
supporting cells of the nervous system are collectively called:
Answer:In the central nervous system, the supporting cells are collectively referred to as neuroglia.
Explanation:In the central nervous system, the supporting cells are collectively referred to as neuroglia.
Supporting cells of the nervous system are collectively called neuroglia or glia. These are non-neuronal cells that perform a number of functions in the nervous system, such as protecting and supporting neurons, feeding neurons, and clearing the nervous system of waste products.
The correct operation of the neurological system depends on the glia. They shield and protect neurons, clear waste products from the nervous system, and contribute to the nervous system's immunological response.
Glia is necessary for neurons to function effectively, which in turn allows the nervous system to operate normally.
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Fill in the Blank: Write the word that best completes each sentence..
17. Unlike animal cells, plant cells have
vacuoles, and a
wall.
cells have membrane-
18. Prokaryotic and Eukaryotic cells differ in that
bound organelles, and
cells do not have a nucleus.
19. Cell membranes are made up of a phospholipid bilayer. Which part of the phospholipid
bilayer interacts with water? Which part does not interact with water?
20. Name the three main parts of the modern cell theory.
1-
2-
3-
Answer:
Explanation:
1. Unlike animal cells, plant cells have vacuoles, and a cell wall
2. Cell membranes are made up of a phospholipid bilayer. Which part of the phospholipid bilayer interacts with water? Which part does not interact with water? nonpolar fatty acid tails.
3. first, that DNA is passed between some cells during cell division; second, that the cells of all organisms within a similar species are mostly the same, both structurally and chemically; and finally, that energy flow occurs within
what is the function of the structural elements of a virus?
Answer:
The capsid has three functions: 1) it protects the nucleic acid from digestion by enzymes, 2) contains special sites on its surface that allow the virion to attach to a host cell, and 3) provides proteins that enable the virion to penetrate the host cell membrane and, in some cases, to inject the infectious nucleic
Explanation:
Hope this helped you if it did please mark brainliest
The structural elements of a virus, such as the capsid, envelope, and spike proteins, serve to protect and deliver the viral genome into host cells for replication.
What are the structural elements of a virus?The structural elements of a virus have different functions that are essential for the survival and replication of the virus. These elements include:
Capsid: The capsid is the protein shell that surrounds the viral genetic material. It provides protection to the viral genome and determines the shape and size of the virus.Envelope: Some viruses are surrounded by an envelope, which is a lipid membrane that covers the capsid. The envelope helps the virus to evade the host's immune system and enter the host cell.Spike proteins: Spike proteins are protruding structures on the surface of the envelope that are used to bind to the host cell. They play a crucial role in the process of virus entry into the host cell.Nucleocapsid: The nucleocapsid is the complex of the viral genome and the capsid. It is responsible for protecting and delivering the viral genetic material into the host cell.Tail fibers: Some viruses have tail fibers, which are structures that help the virus to attach to the host cell and initiate the entry process.Learn more about virus, here:
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how many bones does a human have in their body
Cooler denser air produces an area of _________pressure, and moves in under rising air.
Answer:
cooler denser air produces an area of higher air pressure and moves in under rising air
Explanation:
circulating hormones are mostly taken up and degraded by the _________ and the __________.
Answer:
where the picture
Explanation:
plss asan po acc picture
Which of the following was developed following Griffith's 1928 experiment. A. Some pathogenic bacteria cannot be heat-killed. Bacterial virulence is related to temperature resistance. B. Streptococcus pneumoniae causes disease. C. DNA from dead encapsulated bacteria can transform living un-encapsulated bacteria into living encapsulated bacteria. D. Dead encapsulated bacteria can cause disease.
Answer:
I believe A is the answer, but I'm not positive.
Explanation:
Griffith demonstrated in 1928 that the ability to synthesis a capsule and consequently become virulent can be transferred from heat-inactivated “smooth” strains to surviving but avirulent “rough” strains of S. pneumoniae. Therefore, option (A) is correct.
What was Griffith's experiment?British bacteriologist Frederick Griffith's 1928 bacteria experiment was the first to demonstrate the "transforming principle," which led to the realization that DNA serves as the carrier of genetic information.
Griffith tried injecting mice with heat-killed S bacteria as part of his investigations (that is, S bacteria that had been heated to high temperatures, causing the cells to die). Unsurprisingly, the mice were not harmed by the heat-killed S bacterium.
The first study demonstrating that bacteria are capable of transferring genetic information through a process known as transformation was conducted by Frederick Griffith.
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Where must an mRNA attach before protein production can begin?
Answer:
to a Ribosome
Explanation:
mRNA is produced inside the nucleus of a cell according to the genetic information present in the DNA of the cell. this process is known as Transcription.
Then it's sent to ribosomal subunits in the cytosol through nucleopores. then it attaches to the ribosome. the ribosome reads the nitrogenous base sequence and pairs the tRNAs with complementary nitrogenous bases. (your answer is here, but if you want to know more, continue reading it.)
Each tRNA contains a tri-nucleotide that is collectively known as an anticodon which has the complementary bases of the relevant codon on the mRNA.
Each tRNA has captured a protein. the type of protein is determined by the sequence of the anticodon.
It means two tRNAs with two different anticodons cannot bring the same protein to the ribosome.
the Ribosome separates the proteins attached to tRNAs and links them as a chain.
the final result is a polypeptide chain. I explained to you the basic protein synthetic process.
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1_____________________It is the temperature required for a liquid to become a gas.
2. _____________________It is the force upon a surface of an object by another force.
3_____________________It does not have a definite volume or shape. The atoms and molecules move freely and spread from one another.
4. _____________________It is the process where gas state turns into liquid state.
5. _____________________It is the process where liquid state turns into a gaseous state.
6. _____________________It is the transition from liquid state to solid state.
7. _____________________It is the change from a solid state directly to the gaseous state without going to a liquid phase.
8. ____________________It is the degree of hotness of a substance, related to the average energy of its molecules or atoms.
Answer:
1) 212° F
2)applied force
3)gases
4) condensation
5) evaporation
6) freezing
7) sublimation
8) temperature
Answer:
1) 100 °C
2) Applied force
3) Gas?
4) Condensation
5) Vaporization
6) solidification
7) Sublimation
8) Temperature
What are the ratios of the phenotypes of the children in
Snyder's study? Why don't the ratios of Snyder's study fit the expected ratios of Mendel's study?
Answer:
3
Explanation:
What contribution did Theodor Schwann make to the cell theory?
Answer:
In 1838 Matthias Schleiden had stated that plant tissues were composed of cells. Schwann demonstrated the same fact for animal tissues, and in 1839 concluded that all tissues are made up of cells: this laid the foundations for the cell theory.
What is the difference between a prokaryotic and eukaryotic cell?
Answer:
one has a nucleus and one doesnt
Explanation:
prokaryotic-smaller, no nucleus to hold genetic info, most have flagellum
eukaryotic-bigger, has nucleus to its genetic info, no flagellum in eukaryotes
What drives surface currents?
differences in air temperature
differences in climate
differences in water density
differences in water salinity
Answer:
WHAT DRIVES SURFACE CURRENTS?
Surface currents in the ocean are driven by global wind systems that are fueled by energy from the sun. Patterns of surface currents are determined by wind direction, Coriolis forces from the Earth's rotation, and the position of landforms that interact with the currents.
DIFFERENCES IN AIR TEMPERATURE.
Movement of air due to differences in temperature between two locations is known as convection or advection. Convection is the term commonly applied to vertical movement of air, whilst advection is used in the context of horizontal displacement of air.
DIFFERENCES IN CLIMATE.
Weather refers to short term atmospheric conditions while climate is the weather of a specific region averaged over a long period of time. Climate change refers to long-term changes.
DIFFERENCES IN WATER DENSITY.
High temperature makes water less dense. As water gets warmer, its molecules spread out, so it becomes less dense. As it gets colder, it becomes denser. Most chemicals get denser when they turn from a liquid to a solid, but water is different.
DIFFERENCES IN WATER SALINITY.
As we have seen, most differences in salinity are due to variations in evaporation, precipitation, runoff, and ice cover. All of these process occur at the ocean surface, not at depth, so the most pronounced differences in salinity should be found in surface waters.
Explanation:
Correct me if I'm wrong po!!
PERO HOPE IT'S HELP PO!♥
how long does it take blood to circulate through the body
Answer:
1 minute
Explanation:
It takes one minute for blood to circulate from the heart.
The average adult's heart beats 100,000 times per day.
Which of the following is an accurate description of a positive feedback loop? SC.912.E.7.7
A.
It is uncommon in nature and it makes systems stable.
B.
It is common in nature and it doesn’t change the stability of systems
C.
It is uncommon in nature and is usually caused by humans
D.
It is common in nature and it makes systems stable
Regulatory functions such as feedback loops are very common in nature and happen thousands of times every day within our bodies alone.
A feedback loop is one of the methods by which biological organisms regulate functions. Feedback loops are a self-regulatory means through which the output of a system is then used as the input. Feedback loops can be of two types:
Positive FeedbackNegative FeedbackA positive feedback loop is one in which the system is stimulated to increase the production of a product. For example, the low levels of an enzyme in the blood will cause the body to produce more of that enzyme in a positive feedback loop. A negative feedback loop is just the opposite, in which high levels will cause a decrease in production.
Feedback loops are a vital part of maintaining homeostasis and for the survival of all organisms. Therefore, we can conclude that option D is correct in stating that feedback loops are common in nature and make the system stable.
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what is photosynthesis
Answer:
It is the process where the plants use sunlight to gain their food.
Explanation:
Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Hope this helps!
Answer:
Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar
Explanation:
mark me as brainiest :D
What is detected by chemoreceptors? - science
What was the first vertebrate to appear on Earth?
Answer:
Myllokunmingia
Explanation:
fish are the first vertebrates appeared roughly 480 million years ago
The DNA structures of prokaryotic and eukaryotic cells share similarities and differences. One way in which they are the same is that
A. both have sugar-phosphate backbones
B most of the DNA is in the form of plasmids
C both have a singular circular chromosome
D the DNA is packaged into several linear pieces
One way in which the DNA structures of prokaryotic and eukaryotic cells are similar is that both have sugar-phosphate backbones.
The DNAs of all living organisms, be it prokaryotes or eukaryotes, are similar and consists of 3 major chemical groups:
5-carbon deoxyribose sugarsnitrogenous purine or pyrimidine basesphosphate groupThe pentose deoxyribose sugar and the phosphate group form the backbone of the structure of DNA. The sugars are linked together by phosphodiester bonds formed between the carbon 4 of each sugar and the methyl group attached to the phosphate.
The similarity in the structure of DNA of all living organisms is one evidence being used to support the evolution of living organisms from a common ancestor.
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Answer:
Your answer would be A!
Explanation:
both have sugar-phosphate backbones
What type of evidence does cosmic background radiation provide about the origins of the universe?
It supports predictions of the composition of the early universe.
It pinpoints the size of the original universe.
It verifies that the early universe was once extremely hot.
It proves that the universe is expanding.
Answer:
it verifies that the early universe was once extremely hot.
Answer:
it verifies that the early universe was once extremely hot.
Explanation:
the allowance for uncollectible accounts is a contra account to
The allowance for uncollectible accounts refers to a company that accepts the risk of giving credits to those who may not pay it back. These debts are written off as uncollectable and are a contra asset on the balance reports.
Uncollectable accounts are also often referred to as doubtful accounts. This implies that the company that is giving the credit accepts the possibility that this entity may not return the money. This results in a loss for the company as is recorded as a contra asset on the balance sheets for the company. Some ways for companies to control this loss are:
Establishing requirements for creditsUsing credit collectors to claim large debtsLimiting amount of loss permitted based on historical and industry records.A contra asset or contra account is an account on a companies balance sheet that decreases the balance of certain assets. Contra derives from Latin and means against. Meaning this is an account that goes against the positive balance of the company, it subtracts from the companies earnings.
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All organisms have the same feedback mechanisms that help them maintain homeostasis.
The graphs below show the change in temperature and salinity of a region of ocean as an instrument is lowered below the surface. Depth is measured in kilometers below the surface, temperature in degrees Celsius, and salinity in parts per thousand.Image of two graphs. The left graph has the x-axis labeled temperature (degree C) ranging from 0 to 10. The y-axis is labeled depth below surface (km) ranging from -1.8 to 0. The line on graph goes up vertically starting at about 2 degree C on the x-axis and -1.9 km on the y-axis. The vertical line goes up staying at about 2 degree C and climbs from -1.9 km to about -0.8 km. The line starts to shift right at -0.6 km. The line shifts to the right from 2 degree C to 5 degree C. The line shifts to right more starting at -0.5 km and reaches 10 °C around -0.2 km. The line continues up vertically after -0.2 km. The right graph has the x-axis labeled salinity ranging from 33.8 to 34.6. The y-axis is labeled depth below surface (km) ranging from -1.8 to 0. The line on the graph starts at 34 on the x-axis and 0 km on the y-axis. The line starts to shift to the right at -0.1 km and levels out at 34.2 on the x-axis. At -0.2 km the line shifts to the left and continues to shift left until it reaches -0.5 km. The line starts to shift to the right again at -0.6 and continues to shift right until it reaches -1.9 km on the y-axis and 34.6 on the x-axis.© 2015 protonsforbreakfast.wordpressWhat is the most valid conclusion regarding ocean salinity based on the data?Ocean salinity is not related to water temperature.Ocean salinity changes with depth at a steady rate throughout the entire water column.Ocean salinity increases as ocean temperature decreases.Ocean salinity is more stable at higher temperatures than at lower temperatures.
Answer:
Ocean salinity increases as ocean temperature decreases.
Explanation:
Answer:Ocean salinity increases as ocean temperature decreases.
Explanation:
How can a star be extremely hot like Alpha Canis Majoris (4 times hotter than our sun) but give off so little light (only 2% of our sun’s light)?
It's on Earth Science.
Answer:
this is due to the fact that stars are suns of other galaxy as we know that we have about a million galaxies in space. the earth is located in the milky way galaxy so these stars are about a 150 billion kilometres from earth
Solar radiation is a broad word for the electromagnetic radiation that the sun emits. It is also sometimes referred to as the solar resource or just sunshine. A multitude of devices can be used to collect solar radiation and transform it into useful forms of energy, such as heat and electricity.
How much of the Sun do we actually see?Sunlight at Earth's surface is roughly 42 to 43 percent visible (400 to 700 nm), 52 to 55 percent infrared (above 700 nm), and 3 to 5 percent ultraviolet in terms of energy (below 400 nm).The Sun always emits the same amount of energy. Insolation refers to the incoming solar radiation. Seventy percent of solar energy makes it to the planet.99.8% of the mass in our solar system is found in the Sun. Everything, from tiny Mercury to the gas giants to the Oort Cloud, 186 billion light-years away, is kept in place by its gravitational attraction.What would occur if our distance from the Sun increased by 10%?More radiation, ultraviolet rays, heat, and other rays would be directed at our atmosphere. It would be impossible to live. According to my projection, the global average temperature would increase from 16 C to 65 C. (149 Fahrenheit). This would be high enough to prevent most life from existing, yet low enough to prevent water from boiling.The solar system itself, the Sun Between 99.8 and 99.9 percent of the mass of the solar system is found in the Sun. The remaining matter is distributed among the planets and their satellites, asteroids, comets, and the gas and dust that surrounds our star.To learn more about Solar radiation, Refer:
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what are the malleable and ductile properties of metal
Answer: The malleable properties are properties that affect its ability to be harmed, pressed, or rolled into thin sheets without breaking. It is the property of a metal to deform under compression and take on a new shape. The ductile properties is the ablity to be hammered thin or stretched into wire without breaking.
Explanation: Found on Thoughtco.com
