Answer:
Neurons, as with other excitable cells in the body, have two major physiological properties: irritability and conductivity. A neuron has a positive charge on the outer surface of the cell membrane due in part to the action of an active transport system called the sodium potassium pump. This system moves sodium (Na+) out of the cell and potassium (K+) into the cell. The inside of the cell membrane is negative, not only due to the active transport system but also because of intracellular proteins, which remain negative due to the intracellular pH and keep the inside of the cell membrane negative.
Explanation:
Neurons are cells with the capacity to transmit information between one another and also with other tissues in the body. This information is transmitted thanks to the release of substances called neurotransmitters, and this transmission is possible due to the electrical properties of the neurons.
For the neurons (and other excitable cells, such as cardiac muscle cells) to be capable of conducting the changes in their membranes' voltages, they need to have a resting membrane potential, which consists of a specific voltage that is given because of the electrical nature of both the inside and the outside of the cell. The inside of the cell is negatively charged, while the outside is positively charged - this is what generates the resting membrane potential. When the membrane voltage changes because the inside of the cell is becoming less negative, the neuron is being excited and - if this excitation reaches a threshold - an action potential will be fired. But how does the voltage changes? This happens because the distribution of ions in the intracellular and extracellular fluids is very dissimilar and when the sodium channels in the cell membrane are opened (because of an external stimulus), sodium enters the cell rapidly to balance out the difference in this ion concentration. The sudden influx of this positively-charged ion is what makes the inside of the neuron become less negative. This event is called depolarization of the membrane.
Which organisms release carbon dioxide as waste consumers only consumers ending D composers producers indie composers or producers only
Answer:
Producers and Decomposers
Explanation:
The organisms that release carbon dioxide as waste are consumers and decomposers. The correct option is B.
What are consumers and decomposers?Consumers are organisms that consume this food from plants like animals. And decomposers are organisms that convert complex food material into simple ones, like bacteria.
When an animal breathes out or exhales, waste carbon dioxide is released. Decomposers release carbon dioxide as they disintegrate dead plants and animals. Plants can use all the carbon dioxide produced in the atmosphere as a result of these activities.
Producers are only eaten by consumers before being broken down by decomposers. To restart the cycle, producers are fed with this dead material.
Therefore, the correct option is B. consumers and decomposers.
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All cells rely on passive and active transport of water and dissolved
solutes to maintain a stable internal environment which is called
1. Diffusion
2.homeostasis
3.equilibrium
4.metabolism
Scientific explanation about how your body reacts to getting stung by yellow jackets?
What goes on in your body (why your toungue feels funny, welts appear over your body, and why it gets hard to breathe)? What chemicals are involved?
Answer:
the answer is under explanation.
Explanation:
The body produces a chemical known as histamine, in an effort to protect the body from foreign substances, which is partly what causes the swelling and itching. Taking an over-the-counter antihistamine such as Benadryl right after getting stung can reduce these symptoms.
Which statements describe properties of stars? Check all that apply.
A. Stars produce energy through nuclear fusion.
B. Stars produce energy through gravity.
C. Stars are massive objects composed of gas.
D. Stars are solid objects that we could stand on.
E. Stars are composed primarily of hydrogen and helium.
F. Stars are composed primarily of liquids such as water.
where is glucose produced
Answer:
The liver produces, stores, and releases glucose depending on the body's need for glucose, a monosaccharide. This is primarily indicated by the hormones insulin – the main regulator of sugar in the blood – and glucagon.
On an average day, how many earthquakes take place around the world? How many large earthquakes take place?
Answer:
The National Earthquake Information Center (NEIC) records an average of 20,000 earthquakes every year (about 50 a day) around the world.
pls help fast lol
Decide whether each of the following events would
result in primary or secondary succession.
3. A volcano erupts covering land in lava rock:
Type text here
4. Humans clear land for farming:
Type text here.
5. A lake dries up, forming a marsh:
Type text here
6. A wind storm builds new sand dunes:
Type text here
Answer:
Primary
Secondary
Secondary
Primary
hope this helps <3
The following events would result in primary or secondary succession are:
1. A volcano erupts covering land in lava rock: primary succession.
2. Humans clear land for farming: Secondary succession.
3. A lake dries up, forming a marsh: Secondary succession.
4. A wind storm builds new sand dunes: primary succession.
What are main differences between primary and secondary succession?
Primary succession happens in a region without any initial verdure. Secondary succession occurs in a region with initial verdure. Primary succession is started either due to a biological factor or an outer agent. An external factor initiates secondary succession.
Thus, these are the answer.
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would more waste be broken down in summer or winter?Explain your choice
Answer:
in summer
Explanation:
due to the increased temperature which easily decompose or rather increase the rate of decomposition of the waste materials.
Describe how you might figure out if something was made out of cells.
Answer:All living organisms are composed of cells, from just one to many trillions, whose details usually are visible only through a microscope.
Explanation:
To determine if something is made out of cells, several approaches can be employed, including microscopic and biochemical assays for physical and chemical assessments.
Visual inspection using a microscope can reveal the presence of cell-like structures, such as membranes, nuclei, or organelles. Staining techniques, such as fluorescent dyes or immunohistochemistry, can further enhance the visibility of cellular components.
DNA analysis can also be conducted by extracting genetic material from the sample and performing sequencing or polymerase chain reaction (PCR) to detect DNA specific to cells.
Biochemical assays can be used to identify cellular components, such as proteins or enzymes, which are characteristic of cell composition.
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how do you write 0.625 as a whole number
Answer:
1
Explanation:
rounding
In an effort to identify the influence of genetic factors on both Type I diabetes and Type II diabetes, researchers calculated concordance rates for monozygotic twins. Concordance rates of 30–50% have been found for Type I diabetes and concordance rates of 80% for Type II. For both kinds of diabetes, dizygotic concordance rates were about 15%. What does this information suggest concerning the relative effect of genetic and environmental factors for each type of diabetes?a) Environmental factors have no role in the occurrence of either type of diabetes.b) Type II diabetes appears to be caused by a single, unidentified gene.c) Genetic influences exert a larger role in Type II diabetes than in Type I diabetes.d) Genetic factors have little or no role in the occurrence of Type I diabetes.e) Type II diabetes is primarily determined by non-genetic factors.
The correct answer is C) Genetic influences exert a larger role in Type II diabetes than in Type I diabetes.
Explanation:
Monozygotic or identical twins share the same genes; due to this, if twins have the same diseases or there are concordance rates, it can be concluded the disease or condition is influenced by genetics.
In the case of diabetes, the concordance rate for Type II diabetes was high (80%), which proves this type of diabetes is influenced to a large extend by genetics. Similarly, in Type I diabetes genetics seem to have an influence but this is not as strong as in Type II because the rates were lower (30-50%).
Moreover, the results of dizygotic twins (twins with different genes) show diabetes is influenced by genetics because in these twins the genetics are not the same, and therefore the concordance rate is low.
ALOT OF POINTS marking people as brainlist if correct
Answer:
probably A, B, or D.
Explanation:
Answer:
14. A Carbon dioxide
15. C glucose
Explanation:
#14 is A, carbon dioxide because cellular respiration releases Carbon dioxide (co2) and H20 (water).
#15 is C, glucose because photosynthesis takes in Co2, h20, and Sunlight and creates sugar (glucose) and oxygen.
The products of photosynthesis are the reactants of cellular respiration and vice versa.
Explain the difference between past time focus and present time focus.
The difference between past time focus and present time focus is that present time focus refers to the moment we are living in, the moment we are going to now. The past focus is that we are paying attention to the things that we have experienced in the past. The basic difference is one things is about being focused on the present situation while the other is thinking about past situations or experiences.
Explanation:
Past time focus : David has good marks and he is thinking about that achievement and good grades at that time
Present time focus : David has gotten good grades right now so he is going to put in time to better himself.
NEED HELP ASAP
Which of the following is used for STRUCTURE and not for ENERGY?
A)glycogen which stores excess glucose consumed by animals
B)starch which stores excess glucose made during photosynthesis in plants *
C)cellulose which is difficult to break apart
Answer:
the answer is option c cellulose..
Explanation:
Cellulose is a molecule, consisting of hundreds – and sometimes even thousands – of carbon, hydrogen and oxygen atoms. Cellulose is the main substance in the walls of plant cells, helping plants to remain stiff and upright. Humans cannot digest cellulose, but it is important in the diet as fibre.
Starch or amylum is a polymeric carbohydrate consisting of numerous glucose units joined by glycosidic bonds. This polysaccharide is produced by most green plants as energy storage
Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals, fungi, and bacteria. The polysaccharide structure represents the main storage form of glucose in the body.
hope it helped you and the answer is correct
The term that is used for structure and not for energy is cellulose, which is difficult to break apart. The correct option is c.
What is cellulose?A molecule called cellulose is made up of hundreds, and occasionally even thousands, of carbon, hydrogen, and oxygen atoms. The primary component of plant cell walls, cellulose, keeps plants rigid and upright.
A polymeric carbohydrate known as starch or amylum is made up of many glucose units connected by glycosidic linkages. Most green plants synthesize this polysaccharide as a form of energy storage.
Animals, fungi, and bacteria all use the multibranched polysaccharide of glucose known as glycogen to store energy. The primary form of glucose storage in the body is represented by the polysaccharide structure.
Therefore, the correct option is C) cellulose, which is difficult to break apart.
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Name a metal metalloid
Answer:
boron, silicon, germanium, arsenic, antimony, and tellurium.
What does the term semi-permeable mean
Answer:
allowing substances to pass
What type of macromolecule are enzymes?
There are no choices
Answer:
they are part of the protein macromolecules
Explanation:
hope this helps
brainliest?
Select the correct answer.
A scientist isolated DNA from a particular bacterium and decided to analyze it. The sequence of the bacterial DNA is ATGGGCTAGTCTT. What will the complementary strand be?
A.
TACCCGATCAGTTA
B.
TACCCGATCAGAA
C.
TACCCGAGGCGAA
D.
TACAAGATCAGAA
Answer:
c
Explanation:
Answer:
C
Explanation:
Why would animal turn back and go the opposite way the handler wants
Answer: to get away from the handler
Explanation:
"What are the differences between the Federalists and Anti-Federalist in ratifying the Constitution?
Answer: "¿Cuáles son las diferencias entre los federalistas y los antifederalistas en la ratificación de la Constitución?
Explanation:La principal diferencia entre sus posiciones es que los federalistas creen en una fuerza más fuerte concentrada en el gobierno central o federal. Este gobierno es muy poderoso y controla casi todo en el país. Este grupo apoyó plenamente la ratificación de la Constitución estadounidense.
why is it important to study ecosystem in school
Answer:
Ecosystem approach allows students to achieve a deeper understanding of how ecosystems work. This may help them to find keys for understanding and solving environmental problems such as climate change, loss of biodiversity, pollution, waste, energy efficiency etc.
Explanation:
What does "enzymes are organic catalysts" mean?
Answer: Catalyst. Any molecule that will increase the rate of a chemical reaction, does not participate directly in the reaction and therefore is reusable, and does not supply the energy for the reaction (heat or ATP does). Enzymes work on one reactant, called a. Substrate.
Explanation:
Hope this helps.
Have a good night ma´am/sir.
Be safe!
"Enzymes are organic catalysts" refers to the fact that enzymes are an organic class of biological molecule that act as catalysts in chemical reactions.
Catalysts are compounds that speed up chemical reactions without being consumed or changed in any way. In living organisms, enzymes are essential for many biochemical processes, including the breakdown of food during digestion, the synthesis of molecules, and the facilitation of cellular processes. Enzymes help maintain vital biochemical processes, maintaining the fundamental activities of life, by reducing the activation energy required for a reaction.
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Patches of suitable habitat surrounded by unsuitable habitat is called
Answer:
Habitat fragmentation
Explanation:
Habitat fragmentation occurs when a particular habitat breaks up i.e. becomes discontinuous. That means areas of suitable habitat are surrounded by areas unfavorable for the survival of organisms.
This is common during the destruction of previously large areas of forest.
compare and contrast: how are atoms and molecules the same? and how are they different
Psychology 101: Is it normal for school age people to have crushes on their teachers or professors?
Answer:
yes
Explanation:
he/she just you're crush nothing serious about that it's just infatuation that you feel about him or her
The size of the image of a cell being examined with a microscope is determined by the A) light source and fine adjustment B) stage and stage clips C) objectives and ocular D) diaphragm and coarse adjustment
Answer:
Explanation:
objectives and ocular
An orgamism takes care of its young and produces few offsprings. What type of organism is this?
Answer:
An organism takes care of its young and produces few offspring. What type of organism is this? Weegy: An organism takes care of its young and produces few offspring. This is K-strategist.
Explanation:
Meiosis is a type of cell division that produces:
A. Zygotes
B. Chromosomes
C. DNA
D. Gametes
Answer:
B. Chromosomes
Explanation:
This process is required to produce egg and sperm cells.
Meiosis is a type of cell division that produces: Gametes.
Meiosis is called a form of reproduction of cells, specifically, it allows a diploid cell to divide twice consecutively, generating four haploid cells (with half the number of chromosomes each).
This type of cell division is key to sexual reproduction, since through meiosis organisms produce their gametes or reproductive cells.Haploid cells are the gametes or reproductive cells that are involved in sexual reproduction, that is, they are the sperm (male gametes) and the ovules (female gametes).When a sperm and an egg fuse with each other during fertilization, each of them contributes half of the genetic load of the new individual.Thus, both haploid sets of each gamete combine to form a complete diploid set, which is the genome of the newly formed individual.Therefore, we can conclude that meiosis is an essential process prior to sexual reproduction, since gametes are formed during this process.
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What do you think a wave interaction is?
Answer:
Waves interact with matter in several ways. The interactions occur when waves pass from one medium to another. Besides bouncing back like an echo, waves may bend or spread out when they strike a new medium. These two ways that waves may interact with matter are called reflection and refraction .
Explanation:
pls mark as brainliest .
I NEED HELP ASAP !!
The question is:
"Based on the law of conservation of energy, which statement is false?
(A). Energy is lost when machines don't work right.
(B). We can't add more engry to rhe universe.
(C). We can't destroy energy that exists in the universe.
(D). Engrey changes from one form to another.
Thanks- Caitlyn
Answer:
(A). Energy is lost when machines don't work right.
Explanation:
The false statement from the choices is that energy is lost when machines do not work right.
The law of conservation of energy states that "energy can neither be created nor destroyed , they can only be converted from one form to another. "
Option B is clearly covered by the statement of the law. All the energy of the universe is already created. Energy cannot be destroyed tallies with the Option C. Energy is transformed from one form to another validates the fourth choice. We can covert from thermal to mechanical energy and vice versa.The only odd choice is that energy is lost when a machine doesn't work right.