2. An isotope is an atom that has a different number of neutrons from its parent atom.
3. Isotopes of each other will have the same number of protons.
What is isotopes?An isotope is a form of a chemical element in which the atoms have the same number of protons (part of the nucleus of an atom) but with a different number of neutrons (part of the nucleus of an atom).
Isotopes are distinct nuclear species of the same element.
Thus, based on the definition of isotopes, we can conclude that the following statements are true;
2. An isotope is an atom that has a different number of neutrons from its parent atom.
3. Isotopes of each other will have the same number of protons.
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When an atom becomes a compound, a ________ forms. a. Bond b. Electron c. Neutron d. Oxygen
Answer:
a bond forms
Explanation:
Name one unique characteristic of the tobacco mosaic virus.
Answer:
They are only live and are able to multiply inside the cells of other living things. The cell they multiply in is called the host cell. And the virus is made up of a core of genetic material, either DNA or RNA,
Explanation:
Explanation:
The infection causes characteristics patters, such as "mosaic" like Mottling and discoloration on the leaves (hence the name).TMV was the first virus that discovered
Which of the following is the best definition for control group?
a. Observations that may be quantitative or qualitative
b. A tentative, testable scientific explanation
c. Useful for determining the effect of the independent variable
d. A logical interpretation based on prior knowledge
+Control group is used as a standard reference for comparing treated groups. Thus, option c is correct.
What is a control group?Control group is important in a study as it makes a useful comparison of the study groups. Control group is kept constant.
In any study, two groups are included: One is the control group which is not under the subject of any treatment whereas the other is study group on which hypothesis of the study is tested by including independent variables.
Control groups are important in finding clinical investigations where the effect of any drug or treatment is compared in control group that is constant and in the study group which contains a part of treatment.
Thus, for every study, inclusion of control group is must.
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If a cow with an assimilation efficiency of 10% and a production efficiency of 20% eats 50 of grass, the expected increase in biomass of the cow would be a. 200 g. b. 500 g c. 1 kg. d. 10 kg.
The expected increase in the biomass of the cow is 1 g, which is not among the given options. Please check the numbers and units provided in the question for accuracy.
Let's calculate the expected increase in the biomass of the cow using the given information.
1. Assimilation Efficiency (AE) = 10%
2. Production Efficiency (PE) = 20%
3. Cow eats 50 g of grass
First, we'll calculate the energy assimilated by the cow:
Assimilated Energy = Grass consumed x AE
Assimilated Energy = 50 g x 10% = 5 g
Next, we'll calculate the increase in biomass using the Production Efficiency:
Biomass increase = Assimilated Energy x PE
Biomass increase = 5 g x 20% = 1 g
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Into what organelle might the cellular products be placed?
4. you have 6.45 l of a gas which contains 1.32 mol of molecules. what will be the new volume of the gas if the quantity is increased to 0.73 mol, assuming pressure and temperature are held constant?
Gives the relationship between volume and amount when pressure and temperature are held constant. Remember amount is measured in moles
How do you use Avogadro's formula?Identify the element in the problem and how much of it there is. Find the element's molecular mass. By dividing the number of moles by Avogadro's number, we may determine how many atoms are included in those moles.
The quantity of particles in a mole is known as Avogadro's number, which is 6.022 10 23.
A mole is a unit used to measure extremely small objects like atoms or molecules. In exactly 12 g of pure C12, there are exactly the same number of carbon atoms in one mole.
Identify the element in the problem and how much of it there is.
Find the element's molecular mass.
Divide the given mass by the mass of one mole to get how many moles are contained in the given mass.
the specified mass times the mass of one mole gives the number of moles.
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Woolly mammoths became extinct around 4,000 years ago. A recent study conducted by scientists found that the last generations of woolly mammoths were plagued by harmful gene mutations. Some of the mutations caused them to have softer fur that didn’t protect them from the cold, a diminished sense of smell, and digestive problems.
A species potential for evolution is based on four factors:
the potential for a species to increase in number
the heritable genetic variation of individuals in a species due to mutation and sexual reproduction
organisms competing for limited resources such as food or water in their environment
the proliferation of those organisms that are better able to survive and reproduce in the environment
In two to three paragraphs, explain why the last generations of woolly mammoths couldn’t meet these factors to evolve in a changing environment. Also explain how data such as the fossil record and DNA evidence can identify the factors that can lead to the evolution of a species.
Answer:
Explanation:
The last generations of woolly mammoths were unable to meet the four factors for evolution because they were plagued by harmful gene mutations. These mutations caused a decrease in their fur density and thickness, making them vulnerable to the cold, as well as a decrease in their sense of smell and digestive problems. These traits made it difficult for them to find food and survive in their environment, leading to a decrease in population numbers.
Data such as fossil records and DNA evidence can be used to identify the factors that can lead to the evolution of a species. The fossil record provides a timeline of a species' physical characteristics and adaptations over time, while DNA evidence provides information about genetic changes and mutations. Both sources of data help scientists understand how species have evolved over time and why some species have become extinct. In the case of the woolly mammoths, the fossil record and DNA evidence revealed that harmful gene mutations were a significant factor in their extinction. By understanding the evolutionary factors that led to the extinction of the woolly mammoths, scientists can better understand how to protect other species from a similar fate.
Which bone-associated structure is continuous with the capsule of the joint, adding strength and helping to stabilize the joint?
The ligaments are the bone-associated structure that is continuous with the capsule of the joint, adding strength, and helping to stabilize the joint.
In the skeletal system, bones serve to provide support and stability to the body, protect internal organs, and work with muscles to facilitate movement. In addition to these functions, bones also contribute to the structure of joints and their stability. Capsule of the joint is a thin fibrous material that surrounds the bones of a joint.
This structure is responsible for keeping synovial fluid inside the joint, which lubricates the joint and reduces friction between the bones. The capsule also provides some degree of stability to the joint.
One of the structures associated with bones that is continuous with the capsule of the joint, adding strength and helping to stabilize the joint is ligaments.
Ligaments are fibrous connective tissues that connect bone to bone.
They are strong and elastic, and they can withstand a lot of tension and stretching. Ligaments can be found at the ends of bones, where they attach to other bones to form joints.
They help to hold the bones in place, and they prevent the bones from dislocating or moving too far out of their normal position.
In conclusion, the ligaments are the bone-associated structure that is continuous with the capsule of the joint, adding strength, and helping to stabilize the joint.
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Find all of the plural or possessive errors. Select each one and type it correctly.
Mooses' fur grows darker as they grow older. While mature moose have dark,
brown coats, calves have light brown fur.
Answer: Moose's fur grows darker as they grow older. While mature moose have dark, brown coats, calves have light brown fur.
Explanation:
In the original sentence, "mooses" is the plural form of "moose," but it is not a correct plural form. The correct plural form of "moose" is "moose." The possessive form of "moose" is "moose's." Therefore, the correct sentence should be "Moose's fur grows darker as they grow older. While mature moose have dark, brown coats, calves have light brown fur."
What is the difference between codominance and incomplete dominance?
Codominance-
Ex: black + white=_________
Incomplete dominance-
Ex. black + white=__________
Answer:
Explanation:
Co-dominance is the appearance of the two traits (black and white in this example) shown together but separately, meaning you can see both colors and they don’t mix. They’re COworkers
Incomplete dominance is when both traits try to overcome each other, the result being a mix of the two (red and white make pink in this example). Each trait is shown INCOMPLETELY
Sorry if it’s too late
How xenobots ( robots ) reproduce ?
Answer:
In a new development, The team announced that xenobots can now reproduce in a way that is completely different from any plant or animal known to science , By scooping up free-floating cells and assembling them into new clusters, Nicola Davis reports for the Guardian.Explanation:Hope this helps you !!A student is going to be diving to collect shells. The instructor tells him to exhale as much as possible and then take a breath of air before he dives.
How would this help the student stay underwater for a longer period of time?
Answer: It decreases CO2
Explanation:
Answer:
Practice deep breathing. Before holding your breath, inhale and exhale slowly from deep within your diaphragm. By doing this, you're ridding your lungs of low-quality air.[1] Spend five seconds breathing in, then hold the breath for one second, before breathing out for ten seconds. Continue deep breathing for two minutes, and be sure that when you exhale, you push out every last "drop" of air.
Explanation:
The hyperventilation reduces the body's carbon dioxide content but does not affect oxygen content much, but the Fio2 of 100 kPa considerably increases the total oxygen content. Hyperventilation before diving enables breath hold divers to stay down longer but is very dangerous.
Which choice best describes the main purpose of light-dependent reactions?
Explanation:
generate electron carriers and some ATP.
can someone pls help me
Answer:
16. mitochondria
17. lysosomes
18. smooth Endoplasmic Reticulum
19. golgi body
20. golgi complex
Explanation:
16. Mitochondria are double membrane-bound cell organelles responsible for the supply and storage of energy for the cell
17. While cells mainly use lysosomes to dispose of trash. Sometimes they simply hang onto their trash, performing the cellular equivalent of sweeping it under the rug
18. Are the storage organelle, associated with the production of lipids, steroids, and also responsible for detoxifying the cell.
19. The Golgi body is the sorting organelle of the cell. Proteins are transported from the rough endoplasmic reticulum (RER) to the Golgi.
20. is responsible for sorting and correctly shipping the proteins produce the ER. Just like our postal packages, which should have a correct shipping address, the proteins produced in the ER should be correctly sent to their respective address. It is a very important step in protein synthesis.
__________________________________________________________
Hope this helps!!
If I am wrong, please tell me, I enjoy learning from my mistakes:)
i need help to fill in the blank!!
Answer: Gravity Assistance
Explanation: gravity assistance can be used to accelerate a spacecraft.
Which of the following processes is NOT a physical or chemical change?
a. crushing
b. weighing
c. melting
d. passing electric current
Answer:
b
Explanation:
doesn't change anything
sucrose is the principal form in which sugar is transported from leaves to the rest of the plant ; glycogen and starch are the storage polysaccharides of animals and plants, respectively . what are the monosaccharide units of these compounds? what type(s) of bonds connect the monomers?
Sucrose, the principal form in which sugar is transported in plants, consists of two monosaccharide units: glucose and fructose.
The monomers are connected by a glycosidic bond.
Glycogen, the storage polysaccharide in animals, is composed of glucose monosaccharide units. These monomers are connected by alpha-1,4-glycosidic bonds with occasional alpha-1,6-glycosidic bonds, creating a highly branched structure.
Starch, the storage polysaccharide in plants, is made up of glucose monosaccharide units as well. The monomers are connected by alpha-1,4-glycosidic bonds, forming a linear chain. However, starch can also contain alpha-1,6-glycosidic bonds, resulting in a branched structure similar to glycogen.
In summary:
- Sucrose: glucose and fructose monomers connected by a glycosidic bond.
- Glycogen: glucose monomers connected by alpha-1,4-glycosidic bonds with occasional alpha-1,6-glycosidic bonds.
- Starch: glucose monomers connected by alpha-1,4-glycosidic bonds, with the possibility of alpha-1,6-glycosidic bonds leading to branching.
These monosaccharide units and the type of bonds connecting them determine the structure and function of these compounds in plants and animals.
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proteins build up, maintain and replace the tissues in your body. group of answer choicesa.trueb.false
The statement "proteins build up, maintain, and replace the tissues in your body" is true. Proteins play an essential role in maintaining and building up the structure and functions of the body. They help to replace damaged tissues and contribute to overall health.
Many distinct amino acids are bonded together to form proteins. These twenty distinct amino acid building blocks are widely distributed in both plants and animals. A normal protein has 300 or more amino acids, and each protein has a different ratio and order of amino acids.
They are the main structural component of cells and tissues and are involved in various functions such as enzymatic reactions, hormone production, and immune system functioning. So, the given statement is true.
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B. How do you use a spectrometer to tell the light of a firefly?
Answer:
I wish I knew a direct answer to this but this all i got
Explanation:
SUBJECTS:Absorption,Bioluminescence,
The crystal structures of the pure, unsubstituted firefly emitter oxyluciferin (OxyLH2) and its 5-methyl analogue (MOxyLH2) were determined for the first time to reveal that both molecules exist as pure trans-enol forms, enol-OxyLH2 and enol-MOxyLH2, assembled as head-to-tail hydrogen-bonded dimers. Their steady-state absorption and emission spectra (in solution and in the solid state) and nanosecond time-resolved fluorescence decays (in solution) were recorded and assigned to the six possible trans chemical forms of the emitter and its anions. The spectra of the pure emitter were compared to its bioluminescence and fluorescence spectra when it is complexed with luciferase from the Japanese firefly (Luciola cruciata) and interpreted in terms of the intermolecular interactions based on the structure of the emitter in the luciferase active site.
Answer:
To use a spectrometer to analyze the light of a firefly, you would first need to collect a sample of the light emitted by the firefly. This could be done by placing the firefly in a small container or by using a light-collecting instrument to capture the light emitted by the firefly.
Once you have a sample of the light, you would need to direct it through the spectrometer. A spectrometer is a device that separates light into its component wavelengths and measures the intensity of each wavelength. To do this, the light sample would be directed through a narrow slit and onto a diffraction grating, which separates the light into its component wavelengths. The separated wavelengths are then focused onto a detector, which measures the intensity of each wavelength.
The resulting spectrum would show the different wavelengths of light emitted by the firefly, with each wavelength corresponding to a different color. By analyzing the spectrum, you could determine the specific wavelengths of light emitted by the firefly, which would provide information about the chemical composition of the light and potentially help to identify the specific species of firefly.
select the early observations made by darwin that helped in his formulation of the idea of evolution by natural selection.
Charles Darwin made several key observations during his voyages and studies that contributed to the formulation of the idea of evolution by natural selection. Some of the early observations include:
Variation within species: Darwin observed that individuals within a species exhibit variation in their traits, such as size, shape, coloration, and behavior. This variation is inherited and can be passed on to the next generation. Overproduction and competition: Darwin noticed that populations have the potential to produce more offspring than the environment can support. This leads to competition for limited resources, such as food, water, and shelter. Only a fraction of the offspring survives to reproductive age. Struggle for existence: Darwin observed that individuals within a population compete for resources, and some individuals are better adapted to their environment than others. Those individuals with advantageous traits have a higher chance of surviving and reproducing.
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what trait describes bacteria
Answer: 1) lack of membrane-bound organelles, 2) unicellular and 3) small (usually microscopic) size
Explanation:
What is a very strong water binder and an excellent skin softener and humectant that is formed by a decomposition of oils or fats
Glycerin is a highly effective water binder, meaning it has a strong ability to attract and retain water molecules.
It is widely used in skincare and cosmetic products due to its excellent moisturizing properties. Glycerin acts as a humectant, drawing moisture from the air and delivering it to the skin, thereby improving skin hydration and softness.
It is commonly derived from the decomposition of oils or fats in a process called saponification. Glycerin is non-toxic, non-irritating, and compatible with various skincare formulations, making it a popular ingredient in moisturizers, lotions, and other beauty products.
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FILL IN THE BLANK. the tendency of toxins to accumulate in top predators is called biological ________.
The tendency of toxins to accumulate in top predators is called biological Magnification.
The term "biological magnification" is frequently used to describe the process by which certain substances, such as heavy metals or pesticides, enter lakes, rivers, and oceans and then move up the food chain in progressively higher concentrations as they are incorporated into the diet of aquatic organisms like zooplankton. These aquatic organisms may then be consumed by larger fish, larger birds, animals, or humans. As they move up the chain, the substances become increasingly concentrated in tissues or internal organs. Because they are metabolized or excreted very slowly, bioaccumulates are substances that accumulate in living things as they consume contaminated food, water, or air.
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Which organism is both a secondary and tertiary consumer?
rabbit
fox
grasshopper
shrew
WILL GIVE BRAINLIEST!
which answer would NOT be considered a part of human mis-management of the environment?
A.) plant and animal extinction
B.) groundwater overuse and pollution
C.) prescribed forest fires promoting healthy ecosystems
D.) deforestation
Answer:
C. Prescribed forest fires promoting healthy ecosystems.
Explanation:
This is because at that particular prescription,the place must have been analysed and proved that the forest fires would create more good to ecosystems than harm.
Answer:
c
Explanation:
right on Edge2020
59) seventeen patients in ten hospitals had cutaneous infections caused by rhizopus. in all seventeen patients, elastoplast bandages were placed over sterile gauze pads to cover wounds. fourteen of the patients had surgical wounds, two had venous line insertion sites, and one had a bite wound. lesions present when the bandages were removed ranged from vesiculopustular eruptions to ulcerations and skin necrosis requiring debridement. fungi are more likely than bacteria to contaminate bandages because they a) are aerobic. b) can tolerate low-moisture conditions. c) prefer a neutral environment (ph 7). d) have a fermentative metabolism. e) cannot tolerate high osmotic pressure.
fungi are more likely than bacteria to contaminate bandages because they are aerobic and can tolerate low-moisture conditions. The correct answer is (A) (Aerobics can tolerate low-moisture conditions).
Eukaryotic organisms make up the microorganisms known as fungi, which include yeasts, molds, and mushrooms. These organic entities are arranged under realm parasites. Kingdom fungi organisms are everywhere and have a cell wall. They fall under the category of living organisms known as heterotrophs.
Single-celled or extremely complex multicellular fungi exist. They can be found in almost any habitat, but the majority of them live on land, mostly in soil or plant matter, rather than in fresh or salt water.
Any of the approximately 144,000 known species of organisms in the kingdom of Fungi, which includes yeasts, rusts, smuts, mildews, molds, and mushrooms, is a fungus (plural fungi). There are also many organisms that look like fungi, like slime molds and oomycetes (water molds), which are not in the kingdom of fungi but are still commonly referred to as fungi.
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Whats the definition of endangered and threatened in bbbbbbbkc. In own words
Anwser
Explanation:
Under the Endangered Species Act (ESA), plant and animal species may be listed as either endangered or threatened. “Endangered” means a species is in danger of extinction throughout all or a significant portion of its range. “Threatened” means a species is likely to become endangered within the foreseeable future.
Answer:
Endangered: On the verge of extinction (of a species)
Threatened: (A species) vulnerable to endangerment
Match the definition provided with the correct type of membrane transport.
Please help me
The definitions are matched according:
Water diffuses across a partially permeable membrane from a high water concentration area to a low water concentration area until equilibrium is established. Molecules move over a partially permeable membrane from a high concentration area to a low concentration area until equilibrium is attained.
Osmosis occurs when molecules flow via a Partially permeable membrane with the help of a transport protein from a high concentration area to a low concentration area until equilibrium is attained.
Facilitated Diffusion: Molecules that pass across a partially permeable membrane with the help of a transport protein and require energy to move from a low-concentration area to a high-concentration area without achieving equilibrium.
Active Transport: Molecules that flow over a partially permeable membrane with the help of a transport protein and require energy from a low-concentration area to a high-concentration area without achieving equilibrium.
What is the use of osmosis?
By balancing the levels of water and intracellular fluids, osmosis assists in the stability of the organism's internal environment. Additionally, nutrients and minerals enter the cell through osmosis, which is necessary for cell survival.
It is used to preserve the freshness of fruits and meat. Salt preserves meat, fish, and vegetables, but sugar preserves fruits. Bacteria that infect them attack them swiftly.
Preservatives like sugar and salt cause bacteria to lose water and halt their metabolism. The germs will perish as a result.
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A weakened immune system may be caused by
O an overproduction of lysozymes.
O muscle disorders.
O immunodeficiency disorders.
O complement systems in the blood.
Answer:
immunodeficiency disorders,and etc
Explanation:
because immunodeficiency disorder- is a disorder that helps you attract more viruses and illness. it can bae acquired trough birth or dieting or lack of energy foods...
A weakened immune system may be caused by immunodeficiency disorders.
What is the Immune system?
The immune system means the protection of our body from different pathogens which are non-self agents. It is a complex network of cells, tissues, organs, and the substances they make that helps the body fight infections and other diseases.
Immunodeficiency disorders destructs the immune system's ability to defend the body against foreign molecules or abnormal cells that invade or attack it, such as bacteria, viruses, fungi, and cancer cells. As a result, unusual bacterial, viral, or fungal infections or lymphomas are caused and spoils the immune system completely.
Therefore, a weakened immune system may be caused by immunodeficiency disorders.
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What did ashworth and Lewis find there how far down dig they have to dig before finding it
Ashworth and Lewis found how far down they have to dig before finding it by various ways.
What is Palaeowater?A body of water that has been preserved for millions of years in an undisturbed environment, usually groundwater in an aquifer, is known as fossil water or paleo water.
There are several devices that can be used to find fossils below the surface of ice, mainly in Antarctica. Some commonly used ones include:
Ground-penetrating radar (GPR): This is a non-invasive technique that uses radar waves to map the subsurface.Ice-coring drills: This is an invasive technique that involves drilling a hole in the ice and retrieving a cylindrical ice core. Remotely operated underwater vehicles (ROVs): ROVs can be used to explore the subsurface and search for fossils.The specific device used will depend on the location, the thickness of the ice, and the research objectives.
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