the channels that can cause graded potentials are: group of answer choices chemically gated channels voltage gated channels mechanically gated channels all of these channels leakage channels
Answers
Graded potentials can be caused by chemically gated channels, voltage gated channels, and mechanically gated channels. These channels allow ions to flow across the cell membrane resulting in changes in the membrane potential.
Graded potentials are changes in the membrane potential that can vary in amplitude and duration. They serve as local signals and can either depolarize (excitatory) or hyperpolarize (inhibitory) the membrane. Several types of channels contribute to the generation of graded potentials.
Chemically gated channels, also known as ligand-gated channels, open or close in response to the binding of specific chemical molecules (ligands). When a ligand binds to these channels, they undergo conformational changes, allowing ions to pass through the channel. This movement of ions creates a change in the membrane potential, leading to a graded potential.
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do not write gibberish answer all questions properly for grade 10 students
1. a) What is the function of the worm’s digestive system? (Hint: it has the same general function as a human’s)
b) Name the organs you identified in your dissection that are part of the worm’s digestive system. c) Compare a worm’s digestive system to a human’s.
2. a) What is the function of the worm’s respiratory system? (Hint: it has the same general function as a human’s)
b) How do worms breathe?
c) Compare a worm’s respiratory system to a human’s.
3. Compare at least one other human organ system with an organ system you observed in your worm dissection.
Answers
1. a) the function of the worm’s digestive system is to break down and absorb nutrients.
b) the mouth, pharynx, esophagus, crop, gizzard, and intestine are the parts of organs in worm’s digestive system.
c) Both have similar functions.
2. a) The function of the worm's respiratory system is to facilitate the exchange of gases.
b) Worms breathe through their skin
c) Comparing a worm's respiratory system to a human's, both systems serve the purpose of gas exchange.
3. circulatory system is the example of human organ systems to the worm's organ systems observed in the dissection.
1. a) The function of the worm's digestive system is to break down and absorb nutrients from the food it consumes, just like the digestive system in humans.
b) In the worm's digestive system, the organs identified during the dissection include the mouth, pharynx, esophagus, crop, gizzard, and intestine.
c) When comparing a worm's digestive system to a human's, both systems have similar functions of breaking down food, absorbing nutrients, and eliminating waste. However, the specific organs and structures involved may differ. For example, humans have a more complex digestive system with additional organs like the stomach and pancreas, while worms have simpler structures to carry out digestion.
2. a) The function of the worm's respiratory system is to facilitate the exchange of gases (oxygen and carbon dioxide) with the environment, similar to a human's respiratory system.
b) Worms breathe through their skin, which is permeable to gases. Oxygen from the environment diffuses into the worm's body and carbon dioxide is expelled through the same process.
c) Comparing a worm's respiratory system to a human's, both systems serve the purpose of gas exchange. However, humans have specialized respiratory organs like lungs, while worms rely on their skin for respiration.
3. When comparing other human organ systems to the worm's organ systems observed in the dissection, one example could be the circulatory system. In humans, the circulatory system, comprising the heart, blood vessels, and blood, transports nutrients, gases, and waste products throughout the body. In contrast, worms lack a specialized circulatory system and rely on diffusion for internal transport of substances.
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please help!!
Temperature is related to the average speed of the molecules of an object or material. True or false?
Answers
Answer:
true
Explanation:
Answer:
I think it's true.............
PLEASE HELP
How do ants and elephants use grouping for survival?
NO COPY AND PASTE!!!11!!!1!!
Answers
They group together for warmth when it's cold and they also group together in case of threats.
Answer: Protection
Explanation: Elephants often circle around the prey, they also use this as a defense mechanism.
Which answer describes the tundra biome?
A) It is Earth's wettest biome.
B) It is Earth's largest biome.
C) It is Earth's least biodiverse biome.
D) It is Earth's driest biome.
15 points shall go to the noble hero who answers this question, Thank You :D
Answers
Answer: The correct answer is C) It is Earth's least biodiverse biome.
Explanation:
The tundra biome is Earth's least biodiverse biome, characterized by cold temperatures, low precipitation, and a short growing season. It has a harsh environment with frozen soil and limited vegetation, resulting in low species diversity.
The largest change in carbon reservoir size during the pre-industrial period occurred in the [ Select ] ["atmosphere", "land", "ocean", "fossil fuels"] which [ Select ] ["increased", "decreased", "", ""] since the pre-agriculture period. In contrast, there was no change in the carbon reservoir size in the ["atmosphere", "land", "ocean", "fossil fuels"]
Answers
The largest change in carbon reservoir size during the pre-industrial period occurred in the atmosphere, which increased since the pre-agriculture period.
This increase in atmospheric carbon was largely due to natural factors such as volcanic activity and changes in solar radiation. In contrast, there was no significant change in the carbon reservoir size in the land or ocean during this period.
However, with the onset of the industrial revolution, the burning of fossil fuels has led to a dramatic increase in atmospheric carbon levels. This increase in carbon emissions has disrupted the natural balance of the carbon cycle, leading to an enhanced greenhouse effect and climate change.
Therefore, it is important that we take action to reduce our carbon emissions and mitigate the effects of climate change. This can be done through a variety of means, including transitioning to renewable energy sources, improving energy efficiency, and implementing policies that promote sustainability and conservation. By working together to reduce our carbon footprint, we can help to safeguard the health of our planet for generations to come.
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Implantation occurs when: a fertilized egg becomes attached to the lining of the uterus the lining of the uterus is shed and menstruation occurs an egg is released from the ovaries and travels to the fallopian tubes an embryo moves to the uterus
Answers
Implantation occurs when a fertilized egg becomes attached to the lining of the uterus because this attachment causes the fertilized egg to get its nutrients from the mother. Option A.
After fertilization occurs, the zygote travels down the fallopian tube and towards the uterus. Once it reaches the uterus, the zygote will begin to embed itself into the thickened and nourishing lining of the uterus, known as the endometrium. This process is essential for the pregnancy to continue, as it allows the developing embryo to receive the necessary nutrients and support for growth and is referred to as implantation.
The lining of the uterus is not shed during implantation, but rather remains in place to support the growing embryo. If implantation is unsuccessful, the lining of the uterus will shed and menstruation will occur.
This is a crucial step in the early stages of pregnancy, as it allows the embryo to receive nutrients and support from the mother's body.
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Why is energy lost in a food chain? *
Answers
Answer:
Because as metabolic heat when the organisms from one trophic level are consumed by organisms from the next level
Explanation:
Hope that helps!
White-tailed deer are mammals. Mammals have a reproductive strategy
that is not found in all animals.
Which two statements provide a cause and effect of the reproductive
strategy of white-tailed deer that helps them survive?
A. It requires two parents.
B. It requires only one parent.
C. It causes very fast growth and development.
D. It produces genetic variation within a population.
E. It results in individuals being identical to one parent.
Answers
Which part of a cell is the fluid environment where molecules are broken down and new molecules made?
mitochondria
cell membrane
cytoplasm
cytosol
Answers
After photosynthesis, plants store their energy as
a)chlorophyll
b)pigment
c)glucose (sugar)
d)oxygen
Answers
Answer:
C
Explanation:
energy stored as sugar within chloroplasts -- the energy factories found in plant cells.
homologous structures, such as arms, wings, and fins, are constructed from the same basic bones and are adapted to locomotion in different environments. such structures support the idea of
Answers
Answer:
homologous structures (wings, fins, etc)
Explanation:
homologous structures are different than the opposite which are human hands for example. if you look at the anatomy of a human hand compared to a wing, you will see that humans hand have more bone structure than wings.
fun fact: by looking at animals X-rays of their hands wings etc, you can tell sort of where they evolved from. for example by looking a monkey's hands, we can tell that they evolved from either monkeys or humans and vice versa.
Consider an individual with red-green colour deficiency.What is the minimum possible number of the child's GRANDPARENTS who were also red-green colour deficient?*note* Please enter numbers only - (0-4)
Answers
As the character is recesive and humans are diploid, the idividual must have both alleles with the information for red-green colour deficiency if she is a woman, or the only allele with that information if he is a man; this is because the gene for colour deficiency is located on the sexual chromosome X.
Therefore, if both grandmothers have the allele for colour deficiency but they have a heterozygous genotype, neither of the grandparets would have colour blindness, even though, they could give their offspring the red-green colour deficiency allele.
To sum up, 0 grandparents can be red-green colour deficient (but at least one must have the corresponding allele) and have a grandson/daughter with red-green colour deficiency.
Which of the following plants and trees ? ( mango and pine . rose and coffee . cucumber and gourd .)
Answers
Answer:
mango and pine
Explanation:
Each of the following hormones is produced by the placenta except one. Identify the exception.
A. human placental lactogen (hPL)
B. progesterone
C. LH
D. human chorionic gonadotropin (hCG)
E. relaxin
Answers
The exception among the given hormones that are produced by the placenta is LH (luteinizing hormone).
Among the hormones listed, LH (luteinizing hormone) is the exception as it is not produced by the placenta. The placenta, which is an organ that develops during pregnancy, plays a crucial role in hormone production to support the growth and development of the fetus.
It produces several hormones, including human placental lactogen (hPL), progesterone, human chorionic gonadotropin (hCG), and relaxin. These hormones are involved in maintaining pregnancy, regulating fetal growth, and preparing the body for childbirth.
LH, on the other hand, is a hormone primarily produced by the pituitary gland in both males and females. In females, LH plays a key role in the menstrual cycle, triggering ovulation and stimulating the production of progesterone by the ovaries. While the placenta produces various hormones necessary for a healthy pregnancy, LH production remains primarily in the domain of the pituitary gland rather than the placenta.
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In the carbon-oxygen cycle,carbon dioxide is used for____and oxygen is used for_____.
Answers
Answer:
In the carbon-oxygen cycle,carbon dioxide is used for photosynthesis and oxygen is used for respiration.
Explanation:
PLS HEP WILL GIVE BRAINLIEST
Which of the following is not a future consequence of nuclear energy use?
O Increased safety and innovation
O Partial reuse of energy fuel rods
O Smaller nuclear power facilities
O Higher costs for new plant designs
Answers
The option that is not a future consequence of nuclear energy use is "Higher costs for new plant designs. "Increased safety and innovation is not a future consequence of nuclear energy use.
The other options are all potential future consequences of nuclear energy use. Partial reuse of energy fuel rods could lead to more efficient use of resources, smaller nuclear power facilities could make nuclear energy more accessible to smaller communities, and higher costs for new plant designs may be necessary to improve safety measures and meet stricter regulations. However, increased safety and innovation are already being pursued in the nuclear energy industry and are not solely future consequences of its use.
The other options - increased safety and innovation, partial reuse of energy fuel rods, and smaller nuclear power facilities - are all potential benefits or consequences of advancements in nuclear energy technology. However, higher costs for new plant designs are not necessarily a consequence of nuclear energy use, as technological advancements can lead to more efficient and cost-effective designs.
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Help please?!?!?!?!?!!!!?!?!
Answers
Answer:
Light is made of Particles
Explanation:
Hi There!
This is the best answer I could find: The photoelectric effect proves that light has particle-like activity. The photoelectric effect happens when photons are shone on metal and electrons are ejected from the surface of that metal. The electrons that are ejected are determined by the wavelength of light which determines the energy of photons.
Hope this helps! :)
Answer:
im pretty sure its d
Explanation:
well the photoelectric effect happens when photons excel on metal and electrons are ejected from the surface of that metal , the electrons that are ejected are determined by the wavelength of light which shows the energy of photons
In an analysis of the nucleotide composition of a double stranded DNA to see which
bases are equivalent in concentration, which of the following would be true?
A = G and C = T and A + C = G + T are both true.
A = G and C = T
A + T = G + C
A + C = G + T
A = C
The correct answer is A+C=G+T but I would like a detailed explanation as to why, thank you.
Answers
A + T = G + C
Purine binds pyrimidine, adenine binds thymine, and guanine binds cytosine, according to the base pairing rule proposed by Erwin Chargaff for DNA structure.
Which of the following statements regarding DNA's nucleotide makeup is true?Regarding the structure of nucleotides, the following assertion is accurate: (a.) one phosphate, one nitrogen base, and one sugar. The fundamental components of nucleic acids, including DNA and RNA, are nucleotides.
In what configurations can a nucleotide be found?Adenine (A), cytosine (C), guanine (G), and thymine (T) are the four nucleotides, or bases, that make up DNA (T). These bases couple off in certain ways (A with T, and G with C).
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endemic species have distributions limited to small geographic areas, and they are particularly at risk of extinction as a result of global climate change. why? group of answer choices endemic species occur predominantly in colder. all endemic species have long generation times that make evolutionary adaptation to climate change prohibitively. all endemic species are already stressed by other human. small and isolated geographic ranges make avoiding unfavorable climate conditions difficult.
Answers
The Correct answer is D,"Small and isolated geographic ranges make avoiding unfavorable climate conditions difficult."
Climate refers to the long-term patterns of temperature, precipitation, humidity, wind, and other atmospheric conditions in a particular region or on the planet as a whole. Climate is influenced by a complex system of factors, including solar radiation, the composition of the atmosphere, the Earth's rotation, and the movement of ocean currents.
Climate can vary significantly from one region to another, and can also change over time. The study of past climate change can provide insights into how the Earth's climate system works, and can help scientists make predictions about how climate will change in the future. Climate change is a pressing global issue, as human activities such as burning fossil fuels and deforestation have caused an increase in greenhouse gas concentrations in the atmosphere, which traps heat and causes the Earth's temperature to rise.
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Microeconomic Analysis The U.S. Carbonated Soft Drinks market is experiencing a decline due to consciousness in consumer's awareness and efforts to a
Answers
The U.S. Carbonated Soft Drinks market is experiencing a decline due to consciousness in consumer's awareness and efforts to a healthier lifestyle.
As a result, non-carbonated beverages including water and fruit juices are now more in demand. Companies that sell carbonated soft drinks are thus dealing with diminishing sales and revenue. Companies are introducing healthier options, such diet and low-sugar drinks, and marketing their goods through tailored advertising efforts in an effort to buck this trend. Additionally, some businesses are spending money on the creation and promotion of alternative beverage products to diversify their product lines and cater to shifting consumer tastes. The drop in demand for carbonated soft drinks emphasises how crucial it is for businesses to continuously track market trends and modify their strategies in a dynamic and cutthroat industry.
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Quartz minerals can be found in many different_____in nature.
Answers
Answer:
the earths crust
Explanation:
hope this helps
Answer:
areas
Quartz minerals can be found in many different areas in nature.
Draw the structures of the precursors to (r)-2-methylbutanenitrile, including stereochemistry, for this synthesis
Answers
The structure of the (r)-2-methyl-butane nitrile is attached below.
Butyronitrile is a colorless liquid with a sharp choking odor. Used as pharmaceutical intermediate chemical and poultry medicine. Nitriles are organic compounds in organic chemistry, also called cyano compounds. This class of organic compounds contains cyanide as a functional group with the formula -C ≡ N. Inorganic compounds with -CN groups are called cyanides. Nitriles are organic chemicals containing a cyano functional group (subunit) CN- in which carbon and nitrogen atoms share a triple bond. H. C≡N-. The general formula for nitriles is RCN, where R is an organic group.
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genes can be described as . group of answer choices rod-shaped structures located in each human cell nucleus the blueprint for creating all of the traits that organisms carry sex cells that combine to create a unique individual identical molecules for every existing species on earth
Answers
DNA is the blueprint for every characteristic a gene possesses.
Genes are segments of deoxyribonucleic acid (DNA) that carry out specific protein functions in one or even more types of bodily cells. A person's genes are stored in structures in cells called chromosomes. Genes are stored on chromosomes, that are found inside the nucleus of a cell. Genes are located in tiny, spaghetti-like structures called chromosomes (say: KRO-moh-somes). Additionally, chromosomes are found inside cells. Your body contains many billions of cells. Genes are stored on chromosomes, which are discovered in the nucleus of a cell. Each chromosome contains hundreds to thousands more genes. Each typical human cell contains 23 pairs, or 46 chromosomes, in total.
(Genes are:
a. rod-shaped structures located in each human nucleus.
b. the blueprint for creating all of the traits that organisms carry.
c. sex cells that combine to create a unique individual
d. identical molecules for every existing species on earth.)
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Which of the following is not part of the cell theory?
A. All cells come from other cells.
B. All cells are eukaryotic.
C. All living things are made of one or more cells.
D. Cells are the basic unit of living things.
Answers
Answer:
B. All cells of eukaryotic.
Explanation:
Eukaryotic means: An organism with more than 1 cell.
A cell is cannot have multiple cells within it, and if you read the cell theory it doesn´t mention B.
who is the "The USA New President "
Answers
Answer:
well for me
Explanation:
It's Joe Biden but I want them to overturn that election l still like Trump
What is reproductive isolation?
when two similar populations can no longer produce viable, fertile offspring
when two similar populations produce fertile offspring
when two similar populations can no longer produce offspring
none listed are true
Answers
The following represents the data derived from a needs analysis research study designed to
answer the question. The variables in this study are: (1) the gender of automobile drivers, (2)
whether they have driven "many" miles in their lifestyle or "few" miles, (3) whether they have
had "many" accidents or "few" accidents
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What does "chemical energy" refer to?
Answers
i think its energy that made by our body.. its form from a chemical substance (from food). The chemical energy in our body is the heat we give.
Match each word to It's correct meaning.
1. carbon dioxide
2. respiration
3. saprophyte
chemical process of cells doing
work; breathing
organism that gets its food from
decaying plants or animals
gas given off in animal respiration
that is absorbed from the air by plants in
photosynthesis
Answers
Answer:
and
Explanation:
Carbon doioxide-gas given off in animal respiration
that is absorbed from the air by plants in
photosynthesis.
Respiration - chemical process of cells doing
work; breathing.
Saprophyte-organism that gets its food from
decaying plants or animals
What directions do the plates move relative to one another in a divergent plate boundary?