8. How is an observation different from a hypothesis?.
Answers
Answer:observation is what you have gathered, after you look over it you my hypothesis of what you gathered. hypothesis is an explaination of the observation.
Explanation:
Related Questions
in a protein, the most conformationally restricted amino acid is ______; the least conformationally restricted is ______.
Answers
In a protein, the most conformationally restricted amino acid is Proline and the least conformationally restricted is Glycine.
The fact that proline's amino group is involved in bonding, resulting in imino (-NH-) rather than amino (-NH2), which is involved in the formation of a cyclic ring as a side chain, prevents it from being free to confirm. Proline is the most conformationally restricted amino acid due to the cyclic side chain's 60° phi value (angle between N and C').
Because it only has one hydrogen group (-H) in its side chain, glycine has the smallest conformational restriction of any amino acid. Because it is less sterically hindered, its presence in the Ramachandran plot is much greater than the permitted range.
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if a farmer were to abandon his land what would it look like in 1 year?
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¿ Que seres vivos permiten los procesos de descomposición en el ciclo del carbono y de fijación, nitrificación y desmitificación en el ciclo del nitrógeno ?
Answers
Answer:
Explanation:
The transport of molecules of a particular solute from inside an animal cell across the cell membrane to the extracellular fluid always requires energy when _____. View Available Hint(s) The transport of molecules of a particular solute from inside an animal cell across the cell membrane to the extracellular fluid always requires energy when _____. a transport protein is involved in the movement of the molecules the lipid bilayer is permeable to the solute the concentration of the solute is lower inside the cell than outside it the concentration of the solute is higher inside the cell than outside it
Answers
Answer:
the concentration of the solute is lower inside the cell than outside it
Explanation:
This question depicts the process of ACTIVE TRANSPORT, which is the movement of a substance against concentration gradient, hence, requires energy input (ATP) to occur. In this case, transporting a solute from inside an animal cell to the extracellular fluid across the cell membrane always requires energy.
This is because the concentration of solute inside the cell is much lower than that of the extracellular fluid, hence, to move the solutes against this concentration gradient (low to high), energy in form of ATP is required.
How many calories per day would a 5 month old, 7 kg infant need based on 108 calories per kg? Round to the nearest whole calorie. A recipe contains a total of 100 grams of fat. The recipe feeds 4 people. How many grams of fat is in each serving?
Answers
A 5-month-old, 7 kg infant would need 756 calories per day.
Each serving of the recipe would contain 25 grams of fat.
To calculate the number of calories per day that a 5-month-old infant would need based on 108 calories per kg, we can use the infant's weight of 7 kg:
Calories per day = Weight (kg) x Calories per kg
Calories per day = 7 kg x 108 calories/kg
Calories per day ≈ 756 calories
Therefore, a 5-month-old, 7 kg infant would need approximately 756 calories per day.
To determine the number of grams of fat in each serving of a recipe that contains a total of 100 grams of fat and feeds 4 people, we divide the total fat by the number of servings:
Grams of fat per serving = Total grams of fat / Number of servings
Grams of fat per serving = 100 grams / 4 servings
Grams of fat per serving = 25 grams
Therefore, each serving of the recipe would contain 25 grams of fat.
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Tyrone slipped and fell on his gluteal region. Which area of his body did he injure?
1. the shoulder blade
2. the lower back
3. the buttocks
4. the groin
Answers
Answer:
the buttocks
Explanation:
the glutes are your behind.
C. The Buttocks
Gluteal=Buttocks
the blood, penetrating trauma, and infection in adjoining structures such as the war or sinuses are all routes in which infectious organisms:
Answers
The blood, penetrating trauma, and infection in adjoining structures such as the war or sinuses are all routes through which infectious organisms can spread. Therefore, it is true.
In the case of the blood, infectious organisms can enter the bloodstream and be carried to various parts of the body, potentially causing systemic infections. Penetrating trauma, such as wounds or injuries that breach the body's natural barriers, can provide a direct pathway for infectious organisms to enter tissues and cause localized infections.
Infection in adjoining structures, such as the ear or sinuses, can lead to the spread of infectious organisms from these sites to other nearby areas, causing secondary infections or complications.
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A chemical that affects neuronal function but is not stored in presynaptic vesicles is:.
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Fertilizer runoff causes an increase in the dissolved nutrients of the ecosystem shown in the food web below. This causes the number of phytoplankton to double.
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Fertilizer runoff is rich in nutrients such as nitrogen and phosphorus, which causes an increase in the dissolved nutrient levels in aquatic ecosystems which causes an increase in the amount of phytoplankton.
Thus, these nutrients act as a fertilizer, which results in the rapid growth of phytoplankton, and their population size gets doubled. This leads to an increase in the population of primary consumers such as zooplankton and small fish that feed on them in aquatic ecosystems.
However, if the phytoplankton population grows too large, algae and other aquatic plants also increase in aquatic ecosystems, which leads to oxygen depletion and harmful algal blooms, thereby, disrupting the entire ecosystem.
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The Divide-a-Lot chemical _____ the egg cell so cell division can begin. N
Answers
Answer:
splits
Explanation:
intro about brazil. ...........................................................................
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Many types of plants produce fruit which is eaten by animals. The seeds of these plants are typically undigestible. Which of the following is an advantage for plants having undigestible seeds? It allows seeds to reside in the gut until conditions are appropriate for germination. It ensures that flowers of these plants will be pollinated. It allows the seeds to be dispersed into other areas. It provides a source of nutrients for the germinating seed.
Answers
The advantage for plants having undigestible seeds is that it allows seeds to reside in the gut until conditions are appropriate for germination.
Fruits are a source of nutrition for animals that consume them, and they are also a means of seed distribution for plants that produce them. Many types of plants generate fruit that is consumed by animals; nevertheless, the seeds of such plants are usually indigestible. As a result, the seeds can be dispersed into new areas by animals that eat the fruit.
However, having undigestible seeds provides a distinct benefit to plants: it allows seeds to reside in the gut until conditions are appropriate for germination, which aids in seed growth and germination.
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ANSWER ASAP!! Which type of selection occurs when a population experiences a shift in diversity toward the larger organisms?
1. stabilizing selection
2. directional selection
3. disruptive selection
4. adaptive selection
Answers
Answer:
2
Explanation:
edge 2021
The type of selection that occurs when a population experiences a shift in diversity toward the larger organisms is a directional selection.
What is a selection?It is a phenomenon by which some organisms have better advantage at surviving than the others of the same species.These organisms prevail and are reproductively more successful than the others.What is a directional selection?It is the type of selection in which an extreme phenotype is selected and the rest are at a disadvantage."The allele frequency is shifted in the direction of that phenotype.What is a disruptive selection?It is the type of selection in which both the extreme phenotypes are favored than the others.
What is a stabilizing selection?It is the opposite of directional selection.In this the mean phenotype is selected and the extreme phenotypes are not.To learn more about phenotypes, selection, directional selection and population here,
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The cytoskeleton, which supports the structure of the cell, is located
A. on the external surface of the cell.
B. on the external surface of the nucleus.
C. throughout the nucleus.
D. throughout the cytoplasm
E. on the internal surface of the cell.
Answers
Answer:
D
Explanation:
It is located in the cytoplasm next to the endoplasmic reticulum and near the cell nucleus.
define an invasive species and share why it's a threat to
biodiversity?
Answers
An invasive species is a non-native species that has been introduced into an environment where it is not native and has the ability to establish itself and spread, often leading to negative impacts on the local biodiversity.
Invasive species can be a threat to biodiversity in several ways:
Competition: Invasive species can outcompete native species for resources such as food, water, and space. This can lead to the decline or extinction of native species that are not able to compete with the invasive species.
Habitat alteration: Invasive species can alter the physical and biological characteristics of an ecosystem, which can affect the habitats of native species. For example, invasive plants can outcompete native plants and change the structure of the soil, affecting the burrowing and nesting habits of native animals.
Disease transmission: Invasive species can carry diseases that can be transmitted to native species, leading to the decline or extinction of these species.
Genetic hybridization: Invasive species can hybridize with native species, leading to the loss of genetic diversity and the ability of native species to adapt to changing environmental conditions.
Overall, invasive species can have significant negative impacts on biodiversity, and it is important to manage their introduction and spread to prevent these impacts.
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Describe the sliding filament model of muscle contraction. What role do acetylcholine and acetylcholinesterase play in muscle contractions
Answers
Answer:
It Is me the Explanation Wizard (づ｡◕‿‿◕｡)づ
Explanation:
Hey (☞ﾟ∀ﾟ)☞ It's the Explanation Wizard here for your troubles I don't wanna waste time so here is my answer+explanation that I have personally wrote for you.The first question you asked here's the a+e The sliding filament model describes the process used by muscles to contract. It is a cycle of repetitive events that causes actin and myosin myofilaments to slide over each other, contracting the sarcomere and generating tension in the muscle. second a+e for second question When the nervous system signal reaches the neuromuscular junction a chemical message is released by the motor neuron. The chemical message, a neurotransmitter called acetylcholine, binds to receptors on the outside of the muscle fiber. That starts a chemical reaction within the muscle. Explanation Wizard out
Ferns tend to live in which of the following habitats?"
moist and sunny
moist and shady
O dry and sunny
Odry and shady
Answers
Answer:
Moist and shaddy
Explanation:
hope it helps
Louis Pasteur demonstrated that people could be vaccinated against smallpox through
exposure to cowpox.
A. True
b. False
Answers
Answer:
Explanation:
It's false
A. The plot would have the same shape as the glucose plot, but would be shifted to the right slightly.
B. The plot would consist of a continuous straight line with a very shallow slope.
C. The plot would have the same shape as the glucose plot, but would be shifted to the left slightly.
D. The plot would have the same shape, but inversely related, so that as glucose goes up, insulin goes down, and vice versa.
Answers
What aperture does the human eye see?
Answers
The human eye does not have a fixed aperture like a camera lens. Instead, the pupil, which is the opening in the center of the iris, regulates the amount of light that enters the eye.
In bright light, the pupil constricts to limit the amount of light that enters, while in low light, the pupil dilates to allow more light in. The size of the pupil can range from about 2 mm to 8 mm in diameter, depending on the lighting conditions and individual variation. Therefore, the aperture of the human eye is variable and adaptable to different lighting conditions, allowing us to perceive a wide range of brightness levels and colors.
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university of arizona's dr. nachman examined dark-colored mice from two different populations of rock pocket mice living on different lava flows hundreds of miles apart in the desert southwest. the mice looked nearly identical. however, their dark color was caused by two different genes. what does this tell you?
Answers
Dark-colored mouse fur may be caused by more than two genes. As mentioned in the previous question, two distinct genes are responsible for the dark color. Thus, at least two genes are required to produce dark mouse fur.
On each lava flow, a mouse with a dark coat developed independently.Given that each population is made up of a unique population, the suggestion of dark colors must have come about independently.
The same phenotype cannot be produced by two different mutations in two different genes.In genetics, the process by which two strains of an organism with different homozygous recessive mutations produce the same mutant phenotype is referred to as complementation. Dark-colored fur was the result of two mutations in two different genes in this instance.
Natural selection may favor similar adaptations under similar circumstances.Dark-furred Rock Pocket Mouse populations have developed. Once a mutation that causes dark fur appears in a population, similar selection pressures favor similar dark phenotypes on dark lava flows.
WRONG -
In rock pocket mice, dark fur only once underwent evolution.No, rock pocket mice cannot evolve it once only. They are shielded by the darkness from predatory birds and mammals.
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Complete Question -
In the lab, Nachman examined dark mice from two different populations living hundreds of miles apart. The mice looked nearly identical. Their dark color was caused by two different genes. What does this tell you?
a. dark color evolved only once in rock pocket mice
b. under very similar conditions, natural selection can favor very similar adaptations
c. there are at least two genes involved in creating dark mouse fur
d. two completely different mutations in two separate genes can generate the same phenotype
e. dark fur color evolved independently on each lava flow
Netta kicks a soccer ball with a mass of 0.5 kg It accelerates at a rate of 5m/s2. Doctor Banks kicks a bowling ball with a mass of 5 kg. It accelerates at 2 m/s2. What are the forces of the two balls?
Answers
Answer:
8 pounds
Explanation:
as per Newtons law F = ma where F is the applied force, m is the mass of object and a is the acceleration.
An unknown specimen was grown on Indole media. Based on your observation of this specimen choose the appropriate statements.
A. This test is a part of the IMViC panel of tests
B. The organism tested converts tryptophan to indole.
C. This media is inoculated by stabbing the agar in the tube.
D. This is a picture of a negative test result.
E. This is a picture of a positive test result.
F. The organism tested fermented indole.
Answers
Here are the appropriate statements about an unknown specimen grown on Indole media based on your observation: B. The organism tested converts tryptophan to indole.C. This media is inoculated by stabbing the agar in the tube.E. This is a picture of a positive test result.F. The organism tested fermented indole.
The indole test is used to determine an organism's ability to decompose the amino acid tryptophan into indole. The indole production is detected by adding Kovac's reagent, which contains p-dimethylaminobenzaldehyde, to the medium after incubation.
Tryptophan is an amino acid that is the precursor to indole production in this test. The amino acid tryptophan is a prerequisite for indole production. It is for this reason that organisms that can break down tryptophan into indole are positive.
This is the appropriate response to the student's question:
An unknown specimen was grown on Indole media. Based on your observation of this specimen choose the appropriate statements. B. The organism tested converts tryptophan to indole.C. This media is inoculated by stabbing the agar in the tube.E. This is a picture of a positive test result.F. The organism tested fermented indole.
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Which of the following is an example of human genetic mutation and selection resulting from the Neolithic Revolution? a The permanent "switch-on" of the lactase gene, prevalent in some populations, which allows humans to digest milk beyond weaning from breastmilk. b The grain-induced increased expression of the HMGA2 gene, resulting in a variance of height between modern Greeks (taller) and their foraging ancestors (shorter). c The Y−5 tooth pattern that enables modern humans to chew grains. d The decrease in melanin in some populations living in northern latitudes, resulting in a high frequency of blue or green eyes and blonde or red hair.
Answers
The example of human genetic mutation and selection resulting from the Neolithic Revolution is the permanent "switch-on" of the lactase gene, prevalent in some populations, which allows humans to digest milk beyond weaning from breastmilk.
During the Neolithic Revolution, humans transitioned from a nomadic hunter-gatherer lifestyle to settled farming communities. This shift brought about significant changes in human behavior, including the domestication of animals for agriculture. One consequence of this transition was the development of the ability to digest milk in adulthood, known as lactase persistence.
Lactase persistence is the result of a genetic mutation that allows the lactase gene, which produces the enzyme lactase necessary for digesting lactose in milk, to remain active into adulthood. In most mammals, including our ancestors, the lactase gene switches off after weaning, making them lactose intolerant. However, in certain populations that have a long history of dairy farming, such as Europeans, some African and Middle Eastern communities, the lactase gene remains active throughout life.
This genetic mutation and subsequent selection were advantageous in societies that relied on dairy farming, as it provided a valuable source of nutrition and calories. Individuals with the lactase persistence mutation could continue to digest milk and its products, giving them a survival advantage. Over generations, this genetic trait became more prevalent in populations with a history of dairy farming, demonstrating the influence of human genetic mutation and selection resulting from the Neolithic Revolution.
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List the types of cells that have this structure in them
O Plant cells
O Bacterial Cells
O Animal Cells
O All of the above
Answers
Your question seems to be asking about the types of cells that have a particular structure. However, the structure in question was not specified. Despite this, I can provide a brief overview of the main cell types you've mentioned.
1. Plant cells: These are eukaryotic cells found in plants and contain several unique structures, such as a cell wall, chloroplasts, and a large central vacuole. These structures help plant cells carry out photosynthesis and provide structural support.
2. Bacterial cells: These are prokaryotic cells that lack a nucleus and membrane-bound organelles. Bacterial cells have a simple structure, including a cell membrane, cell wall, and cytoplasm. Some bacteria may also have flagella or pili for movement and attachment.
3. Animal cells: These are eukaryotic cells found in animals and share some common structures with plant cells, such as a nucleus, mitochondria, and endoplasmic reticulum. However, animal cells do not have a cell wall, chloroplasts, or a large central vacuole.
To summarize, plant, bacterial, and animal cells are distinct cell types with specific structures that allow them to carry out their unique functions.
If you can provide more information on the particular structure you're asking about, I would be happy to give a more focused answer.
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Biology homework please help
Answers
Answer:
muscles
ribs
lungs
bronchioles
alveoli
diffuses
leaves
exchange
Explanation:
Your diaphragm, and muscles between your ribs, make air move in and out of your lungs. It travels through the trachea, bronchi, and bronchioles to alveoli. In the alveoli, oxygen diffuses into the blood and carbon dioxide leaves. This is gas exchange.
Air enters the lungs and leaves it as a result of the relaxation and contraction of the diaphragm and the muscles between the ribs. When both the muscles and the diaphragm relax, air enters from the trachea and travels through the bronchi and the bronchioles to the alveoli, where the oxygen in the air diffuses into the blood and carbon dioxide diffuse in the opposite direction. The entire process is known as gas exchange.
Match the protist and its description with the categories that it could be classified under. Expand each image to see the picture and description of the three types of protists: Euglena, Spirogyra, and Fuligo Each protist should have at least three categories that it can be classified into.
Answers
Euglena is a single-celled organism that belongs to the phylum Euglenozoa. It is a photosynthetic organism that can be found in both fresh and saltwater. It has a long whip-like flagellum that helps it to move around and search for food. Autotrophic Heterotrophic Unicellular Spirogyra Spirogyra is a filamentous algae that can be found in freshwater environments.
It is made up of cells that are joined together in a chain-like structure. Spirogyra is an important part of the food chain because it is a primary producer.
Autotrophic Heterotrophic Multicellular Fuligo Fuligo is a type of slime mould that can be found in damp, shady areas. It is a unicellular organism that is capable of forming large colonies.
Fuligo feeds on bacteria and other organic matter and is an important decomposer in its environment. Autotrophic Heterotrophic Unicellular and Multicellular
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‼️‼️‼️‼️‼️‼️‼️‼️
PLEASE HELP ME WILL GIVE YOU BRAINLIEST!!!
Answers
Answer:
chimpanzee:)
Explanation:
goodluck
which statement is true of amino acids? a.there are hundreds of them. b.the body can make whatever amino acid it needs. c.they make up proteins. d.they are arranged in the same order in all your cells. e.they are used to make enzymes and antibodies but not muscle. question content areathe way in which a protein in your body is made is based on your what? a.weight b.nutritional status c.protein intake d.dna e.diet question content areathis video describes how the body makes proteins. what is this process known as? a.dna testing b.protein break down c.protein synthesis d.symbiosis e.protein metabolism
Answers
Proteins are made of them. Proteins' fundamental components are amino acids. Protein molecules are composed of amino acids. The monomeric units that make up the protein molecules are called amino acids. The correct answer is (C).
Amino acids are crystalline, colorless solids. They are water-soluble, and their solubility varies depending on the amino acid's R group. Their melting points are low and sharp.
Usually, conditional amino acids are not necessary, unless there is illness or stress. Contingent amino acids include: arginine, cysteine, glutamine, tyrosine, glycine, ornithine, proline, and serine are the other amino acids.
The smaller units known as amino acids that make up proteins are connected to one another in long chains by hundreds or thousands of other amino acids. A protein is made up of 20 different kinds of amino acids that can be combined.
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What can likely happen to uncommon alleles in small, isolated populations as a result of genetic drift?
Answers
Explanation:
they are likely to be lost.