The answers include the following:
The sporophyte is independent and photosynthetic in the group of vascular plants.The sporophytes require liquid water in order to reproduce. Spores are able to spread farther because they are carried easily by wind and other external factors.What is Sporophyte?
This is referred to as the diploid stage in the life cycle of some plants such as algae and is a non sexual reproduction which involves the use of spores.
These spores are usually dispersed by agents such as water and wind which is why they are able to cover a very large distance and then grow in such areas.
Sporophyte become independent and photosynthetic in the group of vascular plants only and are absent in the non vascular group of plants which is therefore the correct choice.
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Which of these does mRNA do in eukaryotic cells but not prokaryotic cells?
A. duplicate itself
B. cross a membrane
C. coil into a compact crystal form
D. break off some of its phosphates to release energy
In the case of prokaryotic cells, the mRNA does not need to cross a nuclear membrane. So the correct option is B.
What is prokaryotic mRNA?The kind of mRNA produced by transcription in prokaryotes is known as prokaryotic mRNA. In most cases, RNA polymerase is in charge of turning genes into mRNA molecules. Prokaryotic mRNA's primary characteristic is polycistronic, however.
As a result, a single mRNA molecule comprises a number of structural genes that are members of a certain operon. As a result, many locations for the start and termination of polypeptides exist inside the same mRNA molecule. This explains how several kinds of proteins may be made by a single bacterial mRNA molecule.
Prokaryotes also usually combine transcription and translation. While a result, bacterial mRNA translation begins as the DNA template is now being transcribed. Therefore, post-transcriptional changes to bacterial mRNA molecules are quite limited. They frequently undergo rapid ribonuclease degradation, shortening bacterial mRNA's half-life.
Therefore the correct option is B.
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The process in which nitrogen is converted into a usable form for life is called _______. a. nitrogen fixation b. photosynthesis c. greenhouse effect d. photolysis
Correct option a) Nitrogen fixation
The process in which nitrogen is converted into a usable form for life is called nitrogen fixation.The conversion of nitrogen fueloline ( N 2) into nitrates and nitrites via atmospheric, business and organic strategies is known as nitrogen fixation. Atmospheric nitrogen need to be processed, or "fixed", right into a usable shape to be taken up with the aid of using plants.
Nitrogen fixation, any herbal or business system that reasons loose nitrogen (N2), that's a fantastically inert fueloline ample in air, to mix chemically with different factors to shape more-reactive nitrogen compounds including ammonia, nitrates, or nitrites.
For nitrogen to be to be had to make proteins, DNA, and different biologically critical compounds, it need to first be transformed right into a exceptional chemical shape. The system of changing N2 into biologically to be had nitrogen is known as nitrogen fixation.
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Baby food manufacturers sometimes use proteases in their products. Proteases function by catalyzing the breakdown of protein, making digestion easier for babies. What type of molecule are proteases?.
If proteases function by catalyzing the breakdown of protein, making digestion easier for babies, then they are enzymes.
What are enzymes?Enzymes are proteins that function to catalyze chemical reactions in biological systems by lowering the required activation energy to carry out these functions. These proteins (enzymes) contain an active site domain that binds to the particular substrate molecule (in this case protease enzymes bind to specific domains in proteins to catalyze breakdown).
In conclusion, if proteases function by catalyzing the breakdown of protein, making digestion easier for babies, then they are enzymes.
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In which layer of the epidermis are 10–25% of the cells melanocytes, a cell type that is prone to cancer in the form of melanoma?.
Stratum basal layer of the epidermis are 10–25% of the cells melanocytes, a cell type that is prone to cancer in the form of melanoma.
Due to its dual roles as a tumour initiator and a tumour promoter, UV radiation is categorised as a "complete carcinogen" since it is both a mutagen and a non-specific harmful agent. UV exposure is the most significant environmental risk factor that can be altered for skin cancer and many other skin conditions that are impacted by the environment.The layer of basal cells at the deepest section of the epidermis contains melanocytes.Cancer that starts in melanocytes is called melanoma. This cancer is also known as cutaneous melanoma and malignant melanoma. Melanoma tumours are often brown or black because the majority of melanoma cells still produce melanin.To learn more about cancer.
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I want to design an experiment to see if drinking coffee makes students
score higher on tests. What is the control group
The amino acid that gives rise to the biological messenger no is?
Answer:
arginine
Explanation:
The amino acid that gives rise to the biological messenger no is arginine.
6
Ayumi is asked to discuss with her lab partner why the land cools faster than the sea. How would she explain this?
OA
Water is attracted to itself.
OB. Water retains heat longer than other substances.
OC. Water will float when frozen.
OD. Water has a high melting point.
Reset
Next
Ayumi can she explain why the land cools faster than the sea by saying that water retains heat longer than other substances; option B.
What is the reason why land cools faster than the sea?The process of cooling and heating of a substance depends on the conducting ability of the substance.
Substances that are good conductors of heat are heated up faster and also cool down faster whereas, substances that are poor conductors of heat are heated up slowly and also cool down slowly.
Comparing the conducting ability of solids and liquids shows that solids are generally better conductors of heat than liquids.
Therefore, land is a better conductor of heat than the water in the sea.
Land will thus heat up faster and cool down faster than the sea. This implies that water will retain heat more as it is heated up more slowly
In conclusion, sea water is poorer conductor of heat than land and will retain heat more.
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Answer: The correct answer is B. Water retains heat longer than other substances.
Explanation: Confirmed correct.
what is the formula for predicting our impact on the environment?
Answer:I=PAT
Explanation:
What factors can be both aboiot and boiotic in a ecosystem pond
Both biotic and abiotic elements are present in the cycles of nitrogen, phosphorus, water, and carbon in pond ecosystem.
An ecosystem in ecology is made up of biotic and abiotic elements. The living components of a pond ecosystem, such as plants, animals, and microorganisms, are known as biotic factors. Abiotic factors are the nonliving elements of the environment, such as the air, minerals, temperature, and sunlight. Both biotic and abiotic elements are necessary for organisms to live. Additionally, a lack or surplus of either component might restrict the effects of other variables and affect an organism's survival.
Soil present in pond ecosystem is composed of both biotic—living or once-living organisms, such as plants and insects—and abiotic—nonliving elements, such as minerals, water, and and air.
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Which organelles are ONLY found in plant cells?
Select all that apply.
Vacuole
Cell Wall
Chloroplasts
Nucleus
Endoplasmic Reticulum
Answer:
I think it's cell wall and chloroplasts
onycholemmal carcinoma is believed to be of trichilemmal origin, and shows differentiation similar to that found in the trichilemmal portion of the hair follicle. less then 3 cases are currently in the english literature. all reported cases presented in elderly patients and were without recurrence after amputation. clinical presentation has been varied and can be very subtle. as with most nail tumors, pain is not a common feature. the diagnosis is based on the histology showing an infiltrative growth of atypical keratinocytes, one or more foci of abrupt keratinization, and usually also keratinous cysts devoid of a granular layer. when a cystic component and clear cells predominate, the subtype description of malignant proliferating onycholemmal cyst has been applied. no standard treatment option or follow up has been established.
Rarely, "malignant proliferating onycholemmal cyst" and "onycholemmal carcinoma (OC)" have been used to characterize subungual malignant epithelial tumors with tricholemmal keratinization.
In addition to a nail bed carcinoma with tricholemmal microcysts, we also present a case of a slow-growing OC that developed on the middle finger of a 58-year-old male. This case was remarkable because it had sebaceous-apocrine differentiation.
Therefore, we believe that OC is a less appropriate name to describe this condition than microcystic nail bed cancer.
None of the uncommon cases of OC are known to match the additional traditional criteria for tricholemmal carcinoma provided by Headington, namely lobular organization, peripheral palisading, thicker basement membrane, and glycogen-positive tumor cells.
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if you have a group of individuals that are all clones or each other (i.e. all individuals are genetically identical), but all individuals are phenotypically different, what is the estimated heritability
The estimated heritability by comparing individual phenotypic variation among related individuals in a population
Individual phenotypic variance across related individuals in a population is compared to assess heritability, as is the relationship between individual phenotype and genetic information, or even the modelling of summary-level data from genome-wide association studies (GWAS).Historically, twin studies have been used to estimate heritability. Fraternal twins typically share 50% of their DNA, compared to identical twins, who have essentially no genetic differences. When identical twins and fraternal twins are raised together in the same environment and a trait between them appears to be more similar, genetic factors most likely play a significant part in defining that feature. Researchers can measure a characteristic's heritability by comparing identical twins to fraternal twins for that trait.To learn more about heritability.
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What monomer does shape A represent?
Which macromolecule did you build?
True or false. only glucose can be used to produce atp via cellular respiration in animal cells.
Only glucose can be used to produce atp via cellular respiration in animal cells is false.
The primary sugar in your blood is called blood sugar, or glucose. Your body uses it as its primary source of energy, and it originates from the food you eat. All of the cells in your body receive glucose from your blood to be used as fuelIon transport, muscular contraction, nerve impulse transmission, substrate phosphorylation, and chemical synthesis are just a few of the processes that use ATP as an energy source. There is a significant need for ATP in both of these processes and others. Being a complicated organism, the body needs energy to continue operating properly. Due to the phosphate groups that connect via phosphodiester bonds, ATP is a great energy storage molecule to employ as "money."To learn more about glucose.
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which part of the digestive system first causes chemical changes to food
Answer:
Chemical digestion begins in your mouth. As you chew, your salivary glands release saliva into your mouth. The saliva contains digestive enzymes that start off the process of chemical digestion.
Explanation:
Substances found outside the cell plasma membrane in the environment are considered ______
Answer:
extracellular
Explanation:
extracellular polymeric substance are generally present at the exterior cells generated through active section
i think it help u
I am a grass and a cereal grain. many food products are made with me. Some might have allergies to me. what plant am i?
Answer:
The answer is wheat.
The cell membrane of an animal cell was damaged, preventing the cell from performing one of its functions. Which cell function would be lost, and how would this loss affect the cell?.
The cell membrane of an animal cell was damaged, preventing the cell from performing one of its functions. The function controlling the exit and entry of material from the cell would be lost and the cell would eventually die.
The cell membrane works as a screen to keep the cell separate from the outer system. Its function is to only allow the required substance into the cell. It is made up of lipids and proteins.
If it is damaged then every substance and molecule will start to enter or leave the cell. There would be no selection which would result in the loss of all the functional properties of the cell.
When there is a damage to the parts of the cell and it fails to perform the necessary functions, it will die eventually.
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what is one question you have about the study of life?
A good question is; What were the molecules that originated life?
What is the study of life?The study of life is referred to as biology. It is derived from two Greek words; "bios" meaning "life" and "logs" meaning "study". Thus biology is the study of life and the properties of living things.
A very good question that could be asked is; What were the molecules that originated life? This could be traced back to simple molecules such as water, nitrogen, carbon dioxide, etc.
A careful experiment could be designed where these molecules are subjected to conditions similar to those at the beginning of the universe in order to decipher how they joined together during the formation of the universe.
ou observe flocks of house sparrows (passer domesticus) and document two foraging strategies: 1) individuals (producers) search for food patches and 2) individuals (scroungers) wait for producers to find food and then feed in the patches found by the producers. the relative frequency of these strategies differs in flocks, and you observe that the scroungers have a high feeding rate (higher fitness) when they are rare in a flock and low feeding rates when they are common in a flock. this is an example of
You observe flocks of house sparrows (Passer domesticus) and document two foraging strategies:
individuals (producers) search for food patches and individuals (scroungers) wait for producers to find food and then feed in the patches found by the producers.The relative frequency of these strategies differs in flocks, and you observe that the scroungers have a high feeding rate (higher fitness) when they are rare in a flock and low feeding rates when they are common in a flock. This is an example of a social-foraging strategy.
Social foragers use either a 'producer' strategy, which concerns searching for food, or a 'scrounger' strategy, which concerns joining with others for food findings. While producers depend on personal knowledge and experience, the inclination to scour as a producer is connected to being a sounder learner.
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which laundry detergent removes stains more effectively?
What is the independent and dependent variable?
Enzyme-containing laundry detergents will remove stains more effectively than detergents without enzymes. Stains will be removed more successfully from clothing with homemade laundry detergent than from commercial detergents.
A variable that is independent is precisely what it sounds like. It is a stand-alone variable that is unaffected by the other variables you are attempting to assess. Age, for instance, could be an independent variable. A person's age won't alter as a result of other circumstances like what they eat, how much they attend school, or how much television they watch. In actuality, when attempting to establish a link between two variables, you are attempting to determine whether the independent variable affects the dependent variables in any way.
A dependent variable is precisely what it sounds like, just like an independent variable. It is something on which other elements depend. A test score, for instance, maybe a dependent variable because it could vary based on a number of variables, including how much you studied, how much sleep you got the night before the test, and even how hungry you were.
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The pleura and pericardium are examples of ________ membranes that cover organs in a body cavity closed to the exterior.
a) mucous
b) serous
c) cutaneous
d) synovial
The pleura and pericardium are examples of mucous membranes that cover organs in a body cavity closed to the exterior.
a) mucous
What is pleura?The pleura is a thin, transparent membrane made up of two layers that lines the lungs and the inside of the chest wall. The layer of membrane that lines the lungs is in direct contact with the layer that lines the chest wall.
With this information, we can conclude that The pericardium is a double, sac-like membrane that surrounds and protects the heart and vessel roots, separating them from other anatomical structures that occupy the mediastinum.
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What is the name for amount of energy that a reaction needs to get started?
The amount of energy that a reaction needs to get started is activation energy and is used by the substrate to form products.
The enzymes are the biocatalysts that are required to increase the rate of reaction because they help in the lowering of the threshold or minimum energy which is called activation energy which is used by the substrate to form the products and if that activation energy is very high that cannot be passed by the substrate then
enzymes help to reduce it by joining with the substrate so activation energy is the amount of energy required by a reaction or substrate to get started and this energy is measured in the joules per minute, kilojoules per mole and kilocalories per mole and activation energy is calculated using k = Ae -Ea / RT where k is rate constant, A is the pre-exponential factor, Ea is activation energy and it has the same unit as R*T, R is the universal gas constant and T is the absolute temperature in kelvins and the example of activation energy is turning the key which causes the spark which activates the burning of gasoline in the engine.
The enzyme which has the maximum capacity of lowering the activation energy and increasing the maximum rate of reaction is known as carbonic anhydrase enzyme forming almost 6000 products per second.
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1. What would happen if a population were
to exceed its carrying capacity?
a. More organisms of that species
will be born.
b. The death rate of the population
will rise.
c. The predators of this population
will decrease.
d.
Immigration of more organisms of
that species will take place.
If a population were to exceed its carrying capacity The death rate of the population will rise.
The correct option is B.
What is death rate?A mortality rate is a measurement of how frequently people die within a given population during a certain period of time. The choice of measuring disease or death depends on whether you want to use morbidity or mortality metrics, which are frequently mathematically equivalent.
How is the death rate calculated?A crude date rate is calculated by dividing the total number of deaths among residents of a given geographic area (a nation, state, county, etc.) by the total population for the same geographic area (for a given time period, typically a calendar year), then multiplying that result by 100,000.
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3.3. recommend four strategies in which your family can assist the environment to prevent and
or limit the effects of radiation on an individual
Protect yourself, your own circle of relatives, and your pets in a radiation emergency.Get internal or take shelter,Stay internal to lessen your publicity to radiation, and Stay tuned for in addition commands on what to do.
Because radioactive substances emerge as weaker over time, staying internal for as a minimum 24 hours can defend you and your own circle of relatives till it's far secure to depart the area. If you've got got cherished ones in schools, day cares, hospitals, nursing homes, or different centers at some point of a radiation emergency, live wherein you're! Going outdoor to get cherished ones should disclose you and them to risky stages of radiation. Learn extra approximately what to do in a radiation emergency.Radiation can have an effect on the frame in some of ways.
The fitness results rely upon the quantity of radiation absorbed via way of means of the frame (the dose), the form of radiation, and the way and for a way lengthy the individual turned into exposed.In big doses, radiation can motive severe infection or pores and skin burns.If you're injured or assume you're injured, are looking for scientific interest proper away.
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the organelles are like because ?
Enzymes
Read the article and use the information to answer the following questions.
Enzymes
What two components are often found as part of an enzyme?
The two components that are often found as part of an enzyme are known as apoenzyme and cofactor or prosthetic group.
What are Enzymes?Enzymes may be defined as biocatalysts that increase the rate of a chemical reaction without being consumed in the overall process. It may be thought that all cellular reactions and processes are mediated by enzymes.
Conjugated enzymes consist of two components. The non-protein component is known as the cofactor or prosthetic group. This component of protein is required for catalytic activity.
Elimination of this non-protein part from conjugated enzymes leaves only the proteinaceous part which is known as apoenzyme. This component of enzymes is biologically inactive.
Therefore, the two components that are often found as part of an enzyme are known as apoenzyme and cofactor or prosthetic group.
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A baby loses weight shortly after birth. This is normal, as the child adjusts to life outside of the womb. Approximately what percentage of their total body weight does a child lose in these first few days?.
Answer:
It's normal for babies to lose up to ten percent of their birth weight in the first week of birth as they flush fluids from their systems and adjust to life outside of the womb.
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Identify the macromolecule based on the structure.
Answer:
This macromolecule is carbohydrate
The enhanced capacity of the train muscle to use fatty acids as a fuel results in?
Answer:
1] decreased lactate formation
2] decreased utilization of muscle glycogen
3] sparing of blood glucose
The enhanced capacity of the train muscle to use fatty acids as a fuel results in decreased lactate formation and decreased utilization of muscle glycogen, sparing of blood glucose.
Thus, Increased endurance: When the muscle can effectively use fatty acids, which are a rich source of energy, it increases endurance.
During extended physical activity, such as endurance workouts like long-distance running or cycling, the muscle's capacity to metabolize fatty acids as a fuel source enables continued energy generation.
Glycogen preservation: By using fatty acids as fuel, the muscle can preserve its meagre glycogen reserves. The kind of glucose that is stored in muscle is called glycogen, and it is a crucial source of energy for intense workouts.
Thus, The enhanced capacity of the train muscle to use fatty acids as a fuel results in decreased lactate formation and decreased utilization of muscle glycogen, sparing of blood glucose.
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