Answer:
The part of a flower stalk where the parts of the flower are attached.
Explanation:
Also known as stem
please answer the question
Answer:
B
Explanation:
in intermediate inheritance, a cross between two heterozygotes will usually produce offspring that exhibit which phenotypic ratio?
Intermediate inheritance is a type of inheritance pattern that results in a phenotype that is intermediate or a blend of the two parental phenotypes. This pattern of inheritance occurs when both dominant and recessive alleles are expressed equally, leading to a new phenotype, and the heterozygous condition is not entirely dominant over the homozygous recessive condition.
In the case of intermediate inheritance, a cross between two heterozygotes will typically result in offspring that display a phenotypic ratio of 1:2:1. The first and last terms in the ratio represent the homozygous dominant and homozygous recessive conditions, respectively, while the middle term represents the heterozygous condition. For example, suppose that a cross is performed between two heterozygous plants that express a flower color of red and white.
In that case, the offspring will produce a phenotypic ratio of 1 red:2 pink:1 white, resulting in a blend of the two parental phenotypes. The offspring's phenotype will be a new color, and it is expected that no individual will display the parental phenotypes.
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Cuando se excita una neurona con estímulos de intensidad creciente se obtiene, a partir del umbral, la misma respuesta eléctrica. En esta situación se pone de manifiesto la característica de: *
A) ley del todo o nada.
B) período refractario relativo.
C) período refractario absoluto.
D) excitabilidad.
E) umbral de excitación.
Answer:
d) excitabilidad
Explanation:
creo que seria esa no lo sé
no se mucho de eso
me dices si sale buena o mala
Which of the following is true about an Individual with the chromosomes shown in this figure?A. All offspring will have the dominant phenotype for each trait. B. All offspring will have the recessive phenotype for each trait. C. A maximum of 4 different gametes are possible with 4 traits. D. The individual is heterozygous for all traits. E. The individual is homozygous for at least one trait.
Option C. A maximum of 4 different gametes with four traits are possible with 4 traits. This is true, while the other options cannot be definitively determined based on the information given in the question.
Based on the information given in the question, we can infer that the figure refers to the individual's genotype for four different traits. However, we cannot determine the phenotype (the observable physical or biochemical characteristics) from the genotype alone. Therefore, we cannot conclude that all offspring will have either the dominant or recessive phenotype for each trait (options A and B).
Option C is correct, as the individual has four different chromosomes that can segregate independently during gamete formation, leading to a maximum of 2^4 or 16 different gamete combinations. However, it is important to note that not all of these gametes may be viable or able to fertilize an egg.
Option D is unlikely, as being heterozygous for all four traits would require having one dominant and one recessive allele for each trait, which is highly unlikely given the number of possible alleles and their frequencies in a population.
Option E is possible, as the individual could be homozygous for one or more of the four traits, meaning they have two identical alleles for that trait. However, we cannot determine which trait(s) this may be from the given information.
In summary, we can conclude that option C is true, while the other options cannot be definitively determined based on the information given in the question.
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This part of the middle ear vibrates and stimulates the bones of the ossicles when it perceives sounds waves.
The eardrum vibrates with incoming sound waves and sends the vibrations to three small bones (malleus, incus, and stapes) in the middle ear.
What is eardrum and its function?The eardrum (tympanic membrane) separates the outer ear from the middle ear. The membrane vibrates when sound waves hit it, starting the process of converting the sound waves into nerve impulses that travel to the brain.
Will your eardrum heal on its own?Most ruptured (perforated) eardrums heal within a few weeks without treatment. If there are signs of infection, antibiotic drip are prescribed by doctors. If the tear or hole in the eardrum does not heal on its own, treatment may include procedures to close the tear or hole.
Why do you feel your ears are clogged?Allergies, nasal congestion, pregnancy, air pressure, etc. are common reasons, ears feel clogged. Clogged ears usually go away in a few days. Decongestants and nasal sprays are the best remedies for ear clogs that cause allergies and runny noses.
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how does mushroom coral work with microplastics
Answer:
Mushroom corals also ingest plastic particles, with a higher probability of retaining biofouled plastics, possibly because plastic that has been in the marine environment long enough to be colonized by micro- and macro-organisms becomes more palatable to corals.
Glycolysis is the first step in cellular respiration. Which option best summarizes the process?
Answer: anaerobic; 6-carbon glucose forms two 3-carbon pyruvates; forms a net total of 2 ATP
What is the definition of reproduction?
Answer: Reproduction is the act of producing one or more individuals of (a given kind of organism) by some process of generation or propagation, sexual or asexual.
What process causes warm, moist air to rise up through the atmosphere and cool as it rises?
A.
evaporation
B.
convection
C.
precipitation
D.
condensation
The convection process causes warm, moist air to rise up through the atmosphere and cool as it rises, hence option B is correct.
What is the process of convection?It is the process through which heat is transferred by the motion of a heated fluid such as air or water. it works when the area of gas or liquid has a temperature difference as compared to the surroundings.
When warm, moist air rises up through the atmosphere and cools as it rises, due to the process of convection.
Therefore, it is the mode of transferring heat in fluids, liquid and gases.
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Describe the role of the gametophyte and the sporophyte in the plant reproductive cycle.g
The plant reproductive cycle involves two distinct multicellular phases, the gametophyte and the sporophyte. The gametophyte is the haploid stage in which the plant produces gametes, which are sex cells that fuse during fertilization to form a diploid zygote. In most plants, the gametophyte is a small, inconspicuous plant that is dependent on the sporophyte for nutrients and protection.
The sporophyte is the diploid stage in which the plant produces spores, which are asexual reproductive cells that can develop into new haploid gametophytes. The sporophyte is the dominant stage in the life cycle of most plants, and it is typically larger and more complex than the gametophyte. The sporophyte is also responsible for producing seeds, which are structures that protect and nourish the developing embryo.
In summary, the gametophyte produces haploid gametes, which fuse during fertilization to form a diploid zygote that develops into the sporophyte. The sporophyte, in turn, produces spores that can develop into new gametophytes, as well as seeds that protect and nourish the developing embryo.
Which statement indicates one difference between the gene that codes for insulin and a gene that codes for testosterone in humans
Answer:
hello your question lacks the required option below are the missing options
A) The gene for insulin is a sequence of five different molecular bases while the gene for testosterone is a sequence of only four different molecular bases.
B) The gene for insulin is replicated in vacuoles, while the gene for testosterone is replicated in mitochondria
C) The gene for insulin has a different sequence of molecular bases than the gene for testosterone.
D) The gene for insulin is turned ON in liver cells, but the gene for testosterone is not
answer : The gene for insulin has a different sequence of molecular bases than the gene for testosterone ( C )
Explanation:
The statement that indicates the difference between the gene that codes for insulin and a gene that codes for testosterone is ; The gene for insulin has a different sequence of molecular bases than the gene for testosterone.
Genetic codes are determined basically by the four types of nitrogen bases contained in the molecules of the DNA ,
Identify the path of water-soluble nutrients after they exit intestinal epithelial cells by placing the following in order:1) capillaries of villi2) hepatic portal vein3)hepatic sinusoid4) central vein5) hepatic vein
The path of water-soluble nutrients after they exit intestinal epithelial cells follows this order: 1) capillaries of villi, 2) hepatic portal vein, 3) hepatic sinusoid, 4) central vein, and 5) hepatic vein.
In the small intestine, absorption of nutrients occurs mainly in the duodenum and jejunum, which are the two sections located closest to the stomach. After being broken down and absorbed by the small intestine, water-soluble nutrients like carbohydrates, amino acids, and water-soluble vitamins travel through the bloodstream to the liver. The path of water-soluble nutrients after they exit intestinal epithelial cells is as follows:
1) Capillaries of villi
Water-soluble nutrients are absorbed by the capillaries that line the villi in the small intestine. From there, they are carried away by the bloodstream.
2) Hepatic portal vein
The hepatic portal vein is responsible for carrying blood from the gastrointestinal tract to the liver. Once water-soluble nutrients are absorbed by the capillaries of villi, they enter the hepatic portal vein.
3) Hepatic sinusoid
Once water-soluble nutrients enter the hepatic portal vein, they are carried to the liver. Within the liver, they pass through the hepatic sinusoid, which is a network of small blood vessels.
4) Central vein
After passing through the hepatic sinusoid, water-soluble nutrients then enter the central vein, which carries blood out of the liver.
5) Hepatic vein
Finally, water-soluble nutrients exit the liver through the hepatic vein and are carried to the heart, where they are pumped to the rest of the body.
As can be seen from the above, the path of water-soluble nutrients after they exit intestinal epithelial cells is as follows: capillaries of villi, hepatic portal vein, hepatic sinusoid, central vein, and hepatic vein.
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What does order mean in biology
Answer:
A taxonomic rank used to classify organisms that is typically lower than the class and consists of families with comparable natures or characteristics.
OAmalOHopeO
Think about the variety of biomes on Earth and differences in their weather patterns. Which list shows environments from highest
average temperature to be lowest average temperature?
A) swamp, mountain, desert
B) swamp, desert, mountain
C) desert, swamp, mountain
D) mountain, desert, mounatin
Answer:
C
Explanation:
hope this helps
The list of biomes that shows environments from the highest average temperature to the lowest average temperature is desert, swamp, and mountain. Therefore, option C is correct.
What are biomes?Since they belong to certain areas or zones that, due to their geographical characteristics, share a climate, vegetation, and wildlife, biomes provide the primary support for the harmony of nature.
Any biome can include a wide range of habitats because the term "biome" is more general than "habitat." An area's climate and geography determine the biome classification. Communities that have adapted to the unique climate and ecology of the biome make up each one. Depending on the surroundings, they come in a variety of forms. The temperate deciduous biome is the ideal environment for human habitation.
The list of biomes that shows environments from the highest average temperature to the lowest average temperature is desert, swamp, and mountain. Therefore, option C is correct.
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Traits acquired during an organisms lifetime can be passed down to its offspring true or false
Answer:
False
Explanation:
An acquired trait is the character developed in an individual as a result of environmental influence. These traits are not coded by the DNA of a living organism and therefore cannot be passed on to future generations.
the endergonic conversion of adp to atp requires more than 30 kj/mol. the hydrolysis of phosphoenolpyruvate to pyruvate drives the conversion of adp to atp. what must be true about this hydrolysis?
The hydrolysis reaction is more exergonic than the endergonic conversion of ADP (the endergonic conversion of adp to atp requires more than 30 kj/mol) which is the truth about how phosphoenolpyruvate is converted to pyruvate to promote the conversion of adp to atp.
An ATP molecule becomes an ADP when the tail of the molecule's phosphate group is severed (via hydrolysis) (adenosine diphosphate). That hydrolysis produces energy and is an exergonic reaction. The phosphate is attached to ATP by weak bonds. Although they are not strong (if they were strong, it would take a lot of energy to break them), they are known as high energy bonds. Consider ATP as a spring-loaded molecule with the last phosphate simply tacked on.
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You notice that some squirrels in your neighborhood have a much darker coat color than most of the other squirrels. Is this darker color an adaptation
Answer:
Yes, it is an adaptation.
Explanation:
The squirrels with the darker coat color may have adapted to fit in with the surroundings, like if your neighborhood had darker colored tree bark. There is also the possibility that they adapted to avoid predators, such as stray cats and dogs (which would mean that they adapted to become less visible to their attacker).
A drought in this ecosystem makes the ground become very dry. Which of the following would most likely result from this
change?
OA.
The grass will shrivel and die, which will cause a decrease in the impala population
ОВ.
The grass will grow more rapidly, which will cause a decrease in the impala population.
OC.
The grass will grow more rapidly, which will cause a decrease in the cheetah population.
D.
The grass will shrivel and die, which will cause an increase in the cheetah population.
Answer:
A
Explanation:
The grass will shrivel and die, which will cause a decrease in the impala population
You’re a dog owner, and do not take your dog for walks or let them run around a lot, but keep feeding them dog food, treats and scraps from the table. Needless to say your dog has become overweight. Causing health problems such as diabetes and heart diseases. To fix this, your vet has told you to put your dog on a diet limiting the amount of dog food and treats it gets everyday and no more table scraps. Why will this help the dog lose weight?
Answer:
itll be eating less and it will lose wieght
Explanation:
Which term is associated with asexual reproduction but not sexual reproduction
fission is asexual and only asexual
Answer:
no its fertilization
Explanation:
Once you’ve decided on your three organisms, the next step is to ask questions about the characteristics of the organisms you chose. This step will help you complete the Venn diagram. Here are a few questions to help you:
How many stages are present in the life cycles of these organisms?
Does a metamorphosis occur during their life cycles?
How do these organisms gain energy for their growth?
Where do these organisms live on Earth?
Can these organisms move freely?
What type of reproduction do these organisms have?
Are the organisms genetically identical or different from their parents?
Do these organisms produce many or few offspring at one time?
What other specialized structures or reproductive strategies do these organisms have?
life cycle: an organism’s stages of growth and development that lead to the production of offspring
Write down two additional questions you’ll research.
URGENTT
Experiment 5
Lisa is working on a science project. Her task is to answer the question:
"Does Rogooti (which is a commercial hair product) affect the speed of hair growth"? Her
family is willing to volunteer for the experiment.
1. Identify the hypothesis in this experiment.
2. State a conclusion to support your hypothesis. 3. State a conclusion that refutes the hypothesis.
Answer:
Hypothesis: The commercial hair product Rogooti accelerates hair growth.Conclusion 1: Rogooti makes hair grow faster than it would normally do when using an ordinary product.Conclusion 2: Rogooti does not seem to have any effect on hair growth.Explanation:
A hypothesis is a scientific conjecture, not verified, that requires corroboration. It is a possibility, but not a fact.
A hypothesis must express what is expected to occur comprehensively. There must be a logical relation between variables. It must be objective.
To answer the question, Lisa might propose the following hypothesis, which needs to be corroborated.
Hypothesis: The commercial hair product Rogooti accelerates hair growth.
Experiment: Her family is a volunteer for the experiment, so all of them will use an ordinary hair product for a month. Before and after this period they will take notes of how long their hair is before and after the first part of the experiment. After this, they will cut down their hair to the initial length, and they will start using Ragooti for another month. After this last one, they will measure hair length again. Finally, Lisa will compare the initial length with the one after the first month and after the second month to analyze how Rogooti affects the speed of hair growth.
Result 1: When comparing lengths, Lisa will see that the hair of all her family members grew longer during the second month.
Conclusion 1: Rogooti makes hair grow faster than it would normally do when using an ordinary product.
Result 2: When comparing lengths, Lisa will not see any significant difference in the hair growth of her family during the first and the second month.
Conclusion 2: Rogooti does not seem to have any effect on hair growth.
Sample Response: The sound of the drumstick hitting the metal bar will get to me in a shorter amount of time in Scenario 1. The sound wave will travel faster in the metal bar than through the air because the speed of sound waves in solids is faster than it is in gases.
What did you include in your response? Check all that apply.
The sound will reach my ear in a shorter time in Scenario 1.
Sound will travel faster through the metal bar than through the air.
The speed of sound waves in solids is faster than it is in gases.
Answer:
The sound will reach my ear in a shorter time in Scenario 1.
The speed of sound waves in solids is faster than it is in gases.
Explanation:
The sound which is produce due to hitting of metal bar with a drumstick reaches to the ears in short time because sound is a longitudinal wave which requires or needs medium for its propagation from one place to another and in solids the particles of medium are close to each other as compared to air so the sound travels faster in solid materials as compared liquid and gases and takes less time to reach my ears.
Answer:
Answer:
The sound will reach my ear in a shorter time in Scenario 1.
The speed of sound waves in solids is faster than it is in gases.
Explanation:
Which hormone makes the medullary respiratory center more sensitive to carbon dioxide?
How does biogeographic
isolation allow for the change of gene pools over time?
Biogeographic isolation allow for the change of gene pools over time which result from the populations that are being separated.
What is Biogeographic isolation?Biogeographical isolation is a speciation process which involves the evolution of the species that is due to the forces which are like the physical and biological that result in to the new species. This speciation is a type of evolution which results in a new species that are not reproductive fertile or the compatible with the species from they isolated.
Biogeographical isolation essentially isolates the reproduction of individuals of the population which is associated with that species. Two populations become more genetically distinguished over time and then it could become two separate species with independent geographical ranges.
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according to the fluid mosaic model,plasma membrane are mainly composed of phospholipids and proteins.Explain how structures S and T play the roles in the plasma membrane,which function as a selective barrier. please help me with this question
Answer:
The plasma membrane is a thin layer of lipid molecules that surrounds the cell and separates the inside from the outside. The fluid mosaic model describes the structure of the plasma membrane as a two-layered structure of phospholipids with embedded proteins. This model explains how the structure of the plasma membrane allows it to act as a selective barrier, regulating the movement of substances in and out of the cell.
Structure S in the plasma membrane is represented by the phospholipids, which form a lipid bilayer with hydrophilic heads facing outwards and hydrophobic tails facing inwards. The hydrophilic heads are in contact with the extracellular fluid and intracellular fluid while the hydrophobic tails are in the middle of the membrane. The phospholipid bilayer provides a barrier that separates the inside and outside of the cell, restricting the movement of hydrophilic and large molecules through the membrane while allowing the passage of small and hydrophobic molecules.
Structure T represents the integral membrane proteins that are embedded in the lipid bilayer. These proteins have different functions, such as transport of molecules, cell signaling, and catalyzing chemical reactions. The proteins also contribute to the selective permeability of the membrane by regulating the movement of specific molecules in and out of the cell. For example, channels and carrier proteins regulate the movement of ions and larger molecules through the membrane while receptor proteins receive signals from the outside of the cell and relay them to the inside of the cell.
In summary, the plasma membrane is mainly composed of phospholipids and proteins according to the fluid mosaic model. The phospholipids form a lipid bilayer that acts as a barrier, while the proteins embedded in the bilayer regulate the selective permeability of the membrane by facilitating the movement of specific molecules in and out of the cell.
Explanation:
classify each acid or property as representing a strong or weak acid.
The strong acids are hydrochloric acid, larger Ka, and strong tendency to dissociate protons. The weak acids are acetic acid, partially dissociates into ions, and larger pKa*.
Depending on the initial acid, a proton (hydrogen ion) is transferred from an acid to a water molecule to form a hydroxonium ion or a negative ion. All of these reactions are reversible, but in some instances we can consider the reaction to be one-way since the acid is so effective at releasing hydrogen ions. Almost all of the acid has been ionised. When an acid is dissolved in water, it doesn't entirely ionise, making it a weak acid. A example weak acid is ethanolic acid. When combined with water, it combines to form ethanoate and hydroxonium ions, however the reverse reaction is more effective than the forward one. The acid and the water are easily reformatted by the ions.
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The complete question is:
Classify each acid or property as representing a strong or weak acid.
as you add water in the model in the different compartments did your measurements seem accurate according to your data? If not why not? Does it make sense comparing with the human body?
The accuracy of measurements in a model would depend on various factors such as the design and calibration of the model, the accuracy of measurement tools used, and the methodology employed.
It is asked whether the measurements in the model seemed accurate when water was added to different compartments. Additionally, it is questioned if the comparison with the human body makes sense. The provided information does not specify the specific model or data being referred to, making it difficult to give a precise answer. However, in general, Without knowing these details, it is challenging to assess the accuracy of the measurements. Regarding the comparison with the human body, it depends on the specific context and purpose of the model. If the model accurately represents the relevant physiological aspects of the human body, then comparing the measurements to the human body can provide insights and help validate the model. However, if the model lacks accuracy or fails to capture the complexity of the human body, the comparison may not be meaningful or reliable. It is crucial to ensure that the model and its measurements align with established scientific knowledge and principles for a valid comparison to be made.
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True or false? All living organisms have the same number of chromosomes.
which are the main stages of the cell cycle?
Answer:
The cell cycle is composed of interphase (G₁, S, and G₂ phases), followed by the mitotic phase (mitosis and cytokinesis), and G₀ phase.
Explanation:
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