if the resting potential of a cell is -90 mV, what might its membrane potential become if potassium channels in the plasma membrane open?
A. -100mV
B. -90 mV
C. -80 mV
D. 0mV
E. more than one of the above are possible

Answers

Answer 1
Uhhhh C. Good luck!!!!!!!

Related Questions

Which scenario best illustrates a scientist using appropriate tools for a scientific investigation?

Answers

The appropriate tools for a scientific investigation include Bunsen burner, calorimeters, microscopes, beakers, reagent bottles etc.

A scientific investigation refers to a method used for the acquisition if knowledge which involves asking questions and getting testable answers.

The scientific method involves observing a particular thing carefully, make assumptions, carrying out an experiment and interpret the results gotten.

The tools used such as Bunsen burner, calorimeters, microscopes, beakers, reagent bottles etc, helps in performing the experiment and collection of data.

In conclusion, it should be noted that the type of scientific tools used has to do with the type of experiment that is done.

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In at least 150 words, explain how the tone of Sylvia Plath's "Mirror" is affected by the poet's precise word choice. Provide specific
evidence from the text to support your response.

Answers

In Sylvia Plath's poem "Mirror," the precise word choice employed by the poet plays a significant role in shaping the tone of the poem. Through her meticulous selection of words, Plath effectively conveys a sense of stark realism, self-reflection, and emotional intensity.

One example of precise word choice affecting the tone is in the opening lines: "I am silver and exact. I have no preconceptions." The word "exact" suggests precision and accuracy, establishing the mirror's reliability and its objective perspective. This sets a tone of cold, impersonal observation, reflecting the mirror's detached nature.

Furthermore, the word "unmisted" is used to describe the mirror's truthful reflection, emphasizing its clarity and lack of distortion. This choice of adjective enhances the tone of harsh honesty and stark reality, as it suggests that the mirror reveals the unadorned truth without any softening or romanticizing.

Another instance of precise word choice shaping the tone is in the lines, "In me, she has drowned a young girl, and in me, an old woman / Rises toward her day after day." The verb "drowned" evokes a sense of suffocation, loss, and despair. It conveys the poet's struggle with aging and the overwhelming weight of time. The choice of "rises" suggests a relentless, cyclical motion, adding to the tone of inevitability and the relentless passage of time.

Overall, Sylvia Plath's precise word choice in "Mirror" contributes to a tone of objective observation, unflinching honesty, and existential reflection. The words she carefully selects enable the reader to delve into the poet's introspective world and experience the emotional intensity that permeates the poem.

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Why do oestrogen levels between 8and 22days remain low in the women who takes contraceptive pills

Answers

Contraceptive pills suppress ovulation and keep oestrogen levels low throughout the menstrual cycle, preventing pregnancy.

The contraceptive pill contains synthetic hormones that mimic the effects of oestrogen and progesterone in the body.

These hormones work to suppress the natural production of oestrogen by inhibiting the release of follicle-stimulating hormone (FSH) and luteinising hormone (LH) from the pituitary gland.

This prevents ovulation and therefore reduces the levels of oestrogen that are normally produced during the menstrual cycle.

The low levels of oestrogen between days 8 and 22 of the menstrual cycle in women taking contraceptive pills are due to the fact that this is the time when oestrogen levels would normally peak in a natural menstrual cycle.

However, as ovulation is suppressed by the pill, there is no need for the body to produce high levels of oestrogen to support the development of the ovarian follicle.

Instead, the pill maintains a consistent level of synthetic hormones throughout the cycle, which prevents the fluctuation of oestrogen levels that would occur naturally.

Therefore, women who take contraceptive pills typically have lower levels of oestrogen throughout their menstrual cycle.

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Accepta bond formed by the electrical attraction between two oppositely charged ions is a(n)_____.

Answers

Answer:

Ionic bond

Explanation:

A bond formed by the electrical attraction between two oppositely charged ions is an Ionic bond.

Which phrase best summarizes how animals get water from the environment
as part of the water cycle?
A. By drinking and by eating other living things
B. By sweating and by eating plants
C. By drinking and by performing photosynthesis
D. By the processes of evaporation and precipitation

Which phrase best summarizes how animals get water from the environmentas part of the water cycle?A.

Answers

A. By drinking and by eating other living things is the phrase that best summarizes how animals get water from the environment as part of the water cycle.
Answer: A, by drinking and eating other living things

Explanation:
B would not be correct because though there is water gained when eating plants, sweating is the loss of water.
C is not correct because though animals do get water from drinking, animals do not perform photosynthesis
D is not correct because though animals can get water from their environment when it rains (through drinking) evaporation is the removal of water.
A is the correct answer

During which time interval has all of the substrate been converted into product?

Answers

Answer:

Cooperative enzymes are more sensitive in their response to changes in substrate concentrations than other enzymes and display a “switch-like” transition from low to high reaction rate as substrate concentration increases. This corresponds to a velocity vs. substrate curve that is S-shaped, as shown above.

Explanation:

there ya go, hope this helped.

During which time interval has all of the substrate been converted into product?

Forested floodplain wetlands benefit from periodic flooding from rivers. When floodwaters spill into the wetland, they bring water and nutrients and leave both behind. But humans have often cut off floodplains from rivers by building roads, levees, berms, etc. Think about what would happen if a river could no longer flood into these areas. How would the resulting increased amount of water and nutrients in the river affect soils, hydrology, and life downstream?

Answers

The absence of flooding from rivers into forested floodplain wetlands would lead to adverse effects on soils, hydrology, and the overall biodiversity downstream, emphasizing the importance of maintaining the natural connection between rivers and floodplains for the health and functioning of these ecosystems.

If a river can no longer flood into forested floodplain wetlands due to human interventions, it would have significant consequences for the downstream areas in terms of soils, hydrology, and life.Without periodic flooding, the increased amount of water and nutrients in the river would not be able to disperse and be deposited in the floodplain wetlands. As a result, downstream soils would experience a decrease in nutrient inputs, leading to decreased fertility and altered composition. The absence of regular flooding would disrupt the natural hydrological cycle, reducing the recharge of groundwater and altering the flow patterns in the river system. This could result in decreased water availability, increased erosion, and changes in the overall ecosystem dynamics downstream.The disruption of nutrient flows and hydrological patterns would also have a significant impact on the life forms downstream. Aquatic plants, fish, and other organisms that depend on floodplain wetlands for breeding, feeding, and shelter would face habitat loss and reduced food availability. This, in turn, could disrupt the food chain and impact the abundance and diversity of aquatic and terrestrial species in the downstream areas.The absence of flooding from rivers into forested floodplain wetlands would lead to adverse effects on soils, hydrology, and the overall biodiversity downstream, emphasizing the importance of maintaining the natural connection between rivers and floodplains for the health and functioning of these ecosystems.

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According to your textbook and many other sources of information, the shortest phase of
mitosis is anaphase. Prophase takes 30 to 60 minutes; metaphase, 2 to 10 minutes;
anaphase 2 to 3 minutes; telophase 3 to 12 minutes.
In the mitosis lab that you have just completed, the shortest phase was telophase and/or
metaphase. Please discuss these results. Why do you think our results do not align with
your textbook or other sources of information? Why does not anaphase come out as the
shortest mitotic phase in our experiment?

Answers

The shortest phase in mitosis is anaphase, but if it is not come out as the shortest in the experiment means sister chromatids have not separated properly and it can cause aneuploidy.

What is Mitosis?

Chromosomes that have been duplicated are divided into two new nuclei during the cell cycle phase known as mitosis. Mitosis, the process of cell division, creates genetically identical cells with a constant number of chromosomes. Thus, also called equational division.

What is Aneuploidy?

The number of chromosomes that differs from the average or typical number for that species as a result of chromosomal variation caused by a loss or gain of one or more chromosomes.

Hence, if anaphase is not come out as the shortest in the experiment means sister chromatids have not separated properly and it can cause aneuploidy.

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identify each of the relationship described below as Predation, Parasitism, Mutualism
or Commensalism.
Epiphytic ferns, which attach themselves to the trunks of large rainforest trees as a means of support.​

Answers

Answer:

Commensalism

Explanation:

The trees are not being harmed by the ferns' attachment, but also do not gain anything from the relationship, The ferns gain a supportive, stable environment. Since one organism has a positive gain while the other has no advantage in the relationship, it is commensalism.

The relationship described below is Commensalism.

Commensalism is a type of relationship in which one organism benefits from the association, while the other organism is unaffected. In this case, the epiphytic ferns benefit from the support provided by the trees, while the trees are not affected by the presence of the ferns.

Which animals have jointed appendages?; Do arthropods have jointed legs?; What does jointed legs mean?; Do all arthropods have legs?

Answers

Arthropods have appendages with joints. Arthropods do have legs in general.

A group of invertebrate animals known as arthropods has segmented bodies, jointed legs, and an exoskeleton. It is the invertebrate species' largest phylum. Their body is made up of segments and has two appendages. For terrestrial species, internal fertilization as well as external or internal fertilization is used for reproduction (aquatic species). Their circulatory system is open. Their development began during the Cambrian era. They serve as pollinators for crops and a source of food for people. Some species can infect people, animals, and crops with diseases.

All arthropods have joined limbs (arthro means joint, and pod means foot). The exoskeleton is rigid across much of the leg, but it is softer and pliable at the joints, allowing movement much like a suit of armor does.

All arthropods have moving body parts, joint legs, and claws. The bodies of arthropods are segmented. Typically, each body segment contains two appendages. The appendages may be mouthparts, legs, wings, or antennae.

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Can someone help with this ? Thank you if you can actually help

Can someone help with this ? Thank you if you can actually help

Answers

Answer:

a

Explanation:

ASAP PLEASE HELPPP!!!!
A scientist wants to use a small plant that can take levels of pollutants, that would
kill other plants, into its body tissues to develop plants that will remove
contaminants from polluted ecosystems. Explain how this research requires an
understanding of genes.

ASAP PLEASE HELPPP!!!!A scientist wants to use a small plant that can take levels of pollutants, that

Answers

This research requires an understanding of genes because the ability of a plant to take up and accumulate pollutants is often controlled by specific genes. Scientists can use genetic engineering techniques to identify and manipulate the genes that regulate a plant's ability to absorb and detoxify pollutants.

How this research requires an understanding of genes?

Example, scientists may identify a gene that produces a protein that enables a plant to absorb heavy metals from contaminated soil. They can then use genetic engineering techniques to transfer this gene to other plant species, allowing them to also take up heavy metals from the soil.

Furthermore, understanding the mechanisms behind the expression of specific genes can help researchers to identify the most effective plant species and genetic modifications for remediating specific types of pollution. For example, some plants may be better suited for removing organic contaminants from water, while others may be more effective at absorbing heavy metals from soil.

Overall, genetic research plays a critical role in identifying the genes responsible for a plant's ability to take up and accumulate pollutants, and in developing new plant species that can help remediate contaminated ecosystems.

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In pea plants, yellow seeds are dominant over green seeds. What would be the expected genotypic ratio in a cross between a plant with green seeds and a plant that is heterozygous for yellow seed color?


0YY :2Yy :2yy


3YY: 1yy


2YY :2Yy :0yy


1YY: 2Yy: 1yy

In pea plants, yellow seeds are dominant over green seeds. What would be the expected genotypic ratio

Answers

Assuming a diallelic gene that expresses complete dominance,  the expected genotypic ratio is  0YY : 2Yy : 2yy. Option A is correct.

Available data.

Yellow seeds aredominant over green seedsY is the dominant alleley is the recessive alleleCross: between a plant with green seeds and a plant that is heterozygous for yellow seed color

According to this, and assuming complete dominance, we can propose the following genotypes and phenotypes.

  Genotype     Phenotype  

   YY, Yy         Yellow seeds

       yy             Green seeds  

Parentals)   yy    x    Yy

Gametes)  y    y        Y     y

Punnett square)    Y         y

                    y       Yy       yy

                    y        Yy      yy

F1) Genotypes

2/4 = 1/2 = 50% of the progeny is expected to be heter0zyg0us, Yy

2/4 = 1/2 = 50% of the progeny is expected to be h0m0zyg0us recessive, yy

   Phenotypes

2/4 = 1/2 = 50% of the progeny is expected to have yellow seeds

2/4 = 1/2 = 50% of the progeny is expected to have green seeds.

The expected genotypic ratio is  0YY : 2Yy : 2yy.

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If a flower is wilting, which structure inside its cells lacks water?


vacuole

cell wall

carpel

chloroplast

Answers

Central vacuole lacks water so just write vacuole

Answer:

Vacuole

Explanation:

The central vacuole stores water in the cell and helps maintain water pressure, or turgor pressure, within the cell. The plant wilts because the central vacuole is empty and the cell is partially collapsed. Once the plant is watered and the central vacuole is full again, the plant will return to its normal position and appearance.

Most articles pass right through the atom, this means that most of the atom is

Answers

Most articles pass right through the atom, this means that most of the atom is an empty space.

What is an atom?

An atom is described as a particle that consists of a nucleus of protons and neutrons surrounded by a cloud of electrons.

Protons and neutrons make up the core nucleus of an atom, which is encircled by an electron cloud. In relation to the size of the atom as a whole, the nucleus is exceedingly small.

As a result, the electrons surrounding the nucleus are the primary target of interactions when particles or even light pass through an atom. The majority of the atom's remaining space, which includes the nucleus, is vacant.

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Which one of the following functional groups to fatty acids have according to the picture? ( question worth alot of points btw)

Which one of the following functional groups to fatty acids have according to the picture? ( question

Answers

Answer:

the functional groups found in fatty acids are the carboxyl group (-COOH) and the hydroxyl group (-OH).

What is the relasionship between a gene , a DNA molecule and a protein?

Answers

Answer:

A gene is a section of a DNA molecule that contains the information to code for one specific protein.

Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body.

DNA is the chemical name for the molecule that carries genetic instructions in all living things.

The DNA molecule consists of two strands that wind around one another to form a shape known as a double helix

The sequence of bases in the DNA molecule called gene determines the sequence of amino acids in a protein.

A gene is a section of a DNA molecule that contains the information to code for one specific protein.

Explanation:

I do not understand these questions, please help!

Questions



A solution of pH 3 has times (more/fewer) H+ than a solution of pH 7.




A solution of pH 9 has times (more/fewer) H+ than a solution of pH 4.





How many moles of H+ are in a liter of solution with a pH of 4?




How many H+ are there in a liter of a solution with a pH of 4?




Diffusion and Molecular Weight



What was the hypothesis that you tested in this demonstration?





What is the independent variable(s)?





What is the dependent variable?





Complete the following table:



distance substance diffused over time in millimeters


time malachite green (mm) potassium permanganate (mm)


one hour


two hours


three hours


four hours




Do the results in the table above support the hypothesis?





What relationship exists between molecular weight and the rate of diffusion?

Answers

Answer:

Too much questions

Explanation:

Your questions are very many,choose atleast 5

The palmer reflex allows a child to:respond when startled turn torward a stroked cheek and start to suck turn its head so it can breathegrasp objects

Answers

The palmer reflex allows a child to grasp objects as soon as they come close to their palms.

What would happen within a few months if all decomposers on Earth disappeared overnight?
There would be an overabundance of organic waste.
Plants would grow out of control.
Ο Ο Ο Ο
Animals would grow out of control.
There would be no visible impact.

ANSWER ASAP PLEASE

Answers

Answer:

There would be an overabundance of organic waste.

The will be no way of controlling waste

Write a question to match this answer:
6 boxes of 12

Answers

Answer:

The chocolate lover bought 6 boxes of chocolate, each containing 12 truffles

Explanation:

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Answer:

The chocolate lover bought 6 boxes of chocolate, each containing 12 truffles. How many truffles did she buy?

A wildlife biologist is studying the effects of an illness called "mange" on urban San
Joaquin Kit Foxes in Bakersfield that is due to a microscopic mite. The biologist hypothesizes that domestic pet dogs are spreading mange to the Kit foxes. This would best be an example of which type of ecology?

Answers

Mange can be successfully treated by administering medication that kills the mites. The successful treatment of mange is currently a significant focus of research; biologists, veterinarians, and other wildlife professionals are exploring new medications that can be used more effectively to treat affected wildlife.

please help fast! only answer if you know no spams!! :)) i’ll give brainliest

please help fast! only answer if you know no spams!! :)) ill give brainliest

Answers

Answer:

Through his microscopic observations of organisms such as bacteria and protozoa, Antonie van Leeuwenhoek effectively began the discipline of microbiology. His studies of insects, mollusks, and fish showed that these animals did not begin their life cycle with spontaneous generation, from nonliving matter

What are the stages of bee development (eggs,larvae,pupae)

Answers

The stages of bee development are egg, larva, pupa, and adult. Eggs hatch into larvae, which then transform into pupae. Finally, adult bees emerge and undergo further maturation.

The stages of bee development are:

1. Egg: The bee life cycle begins when the queen bee lays an egg in a honeycomb cell.

2. Larva: The egg hatches into a larva, which is a legless, grub-like creature. The larva is fed a special diet called royal jelly, which stimulates its growth.

3. Pupa: The larva undergoes metamorphosis and transforms into a pupa. Inside the sealed cell, the pupa undergoes various changes, developing into an adult bee.

4. Adult Bee: After completing the pupal stage, the fully developed adult bee emerges from the cell. The bee then undergoes further maturation, such as its exoskeleton hardening, wings expanding, and adult coloration appearing.

It's important to note that there are three castes of bees: queen, worker, and drone. The development process for each caste is similar, but the diet and size of the cells they are raised in differ, leading to their distinct roles within the colony.

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PLEASE HELP
How does the environment impact a species’ survival?

Answers

So take her time and take care of yourself too much of your stuff going look over work see have
PLEASE HELPHow does the environment impact a species survival?

Survival of populations through climate change demands biogeographic shifts, adaptation of populations, or local acclimatization of individuals. The results of this study show that acclimatization can allow A hyacinthus corals to acquire substantial high temperature resistance over a timespan shorter than can allow for evolutionary change. This study opens other research questions illustrating how science perpetuates udence Select all the questions that represent future research opportunities that stem from this study. Do current climate change models reflect biogeographic shifts, adaptation of populations, and local acclimatisation of individualu? Do all coral species have equal acclimatization ability in temperatures that exceed normal temperatures? Is there an upper water temperature limit to acclimatization or adaptation? Do multiple stressors (for example, pH and temperature change) reduce the ability of corals to respond to environmental change?

Answers

Evaluate the accuracy of current climate change models in reflecting biogeographic shifts, adaptation of populations, and local acclimatization of individuals.

Investigate the variability in acclimatization ability among different coral species in response to temperature extremes.

Determine the upper limit of water temperature that corals can acclimatize to and what happens if that limit is exceeded.

Study the impact of multiple stressors such as changes in pH and temperature on the ability of corals to respond to environmental change.

These questions provide a roadmap for further research in the field and help to deepen the understanding of the role of acclimatization in the survival of coral populations through climate change.

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Which of the following statements is characteristic of the memory of older adults? A) spelling is better than speech B) better at recall than recognition C) less likely to have tip-of-the-tongue forgetfulness D) benefit from learning memory strategies

Answers

The statement that is characteristics of the memory of older adults is as follows: better at recall than recognition (option B).

What is memory?

Memory is the ability of the brain to record information or impressions with the facility of recalling them later at will.

Compared to young adults, older adults have a specific and disproportionate deficit in recognition memory for location, but not for item or for color.

Also, according to research, older adults consistently demonstrated poorer recognition memory for bound information, especially when all features were acquired intentionally.

Therefore, option B is correct.

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ORGANISM A single, self-contained, living thing

Answers

True
Hope this helps?

Briefly Distinguish between the 3 domains of life

Answers

There are three domains of life, Eukarya, Eubacteria, and Archaebacteria, Eukarya is quite easy to distinguish as this comprises all organisms composed of eukaryotic cells, this, eukaryotic cells are characterized by the presence of a nucleus and several organelles. Eubacteria and Archaebacteria are both prokaryotes (there is no nucleus or organelles), their main differences lie in the cell membrane, meanwhile, bacteria have ester bonds in their phospholipids, archaea have ether bonds, also the phospholipid in archaea possess an isoprenoid chain with branching very different from the fatty acids of other organisms, finally, their enzyme machinery and metabolic route are significantly different than in other organisms.

Most eubacteria are ____________________ because most rely on nutrition from other organisms.

Answers

Answer:

heterotrophic(Heterotrophic Eubacteria are among the most abundant and diverse bacteria on Earth,)

Explanation:

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