Answer:
A.electron transport chain
Explanation:
Well i really don't have an explanation
but hope it helps
^U^
The electron transport chain yields the most ATP during cellular respiration.
The electron transport chain is the final stage of cellular respiration, occurring in the inner mitochondrial membrane of eukaryotic cells. In this stage, the high-energy electron carriers NADH and FADH2, which are produced in earlier stages (glycolysis and the citric acid cycle), donate their electrons to a series of protein complexes within the electron transport chain.
As electrons pass through these protein complexes, energy is released and used to pump protons (H+) from the mitochondrial matrix to the intermembrane space, creating an electrochemical gradient across the inner mitochondrial membrane. This gradient stores potential energy.
The electrons then reach the final protein complex, cytochrome oxidase, where they combine with oxygen (O₂) to form water (H₂O). This reaction is critical for aerobic respiration since oxygen is the final electron acceptor.
The flow of protons back into the mitochondrial matrix through the ATP synthase enzyme is driven by the electrochemical gradient, and this flow of protons generates ATP. The process of ATP synthesis coupled to the flow of protons is called chemiosmosis.
The electron transport chain is highly efficient in generating ATP since it harnesses the energy from the movement of electrons and the pumping of protons across the inner mitochondrial membrane. It is estimated that around 26-28 molecules of ATP are produced from each molecule of glucose during aerobic cellular respiration, with the majority of ATP generated in the electron transport chain.
To learn more about cellular respiration, here
https://brainly.com/question/32872970
#SPJ6
Which of the following processes begins when a star enters the main sequence?
Nuclear fission
Nuclear fusion
Condensation of a nebula
Appearance of a supernova
Hello there Jonnromeroo, thank you for asking a question here on Brainly!
You Asked ➤ Which of the following processes begins when a star enters the main sequence?
↴ OUR CHOICES ↴
A: Nuclear fission
B: Nuclear fusion
C: Condensation of a nebula
D: Appearance of a supernova
------------------------------------------------------------------------------------
Answer ➤ B: Nuclear fusion
Explanation: When a star begins the process of being created, it is hot and dense. Really hot and dense! It begins to start fusing with helium which is the start of its main sequence called nuclear fusion.
I hope this answer is helpful to you, but please let me know if you have any other questions regarding it.
- Qamar
Answer:
Nuclear fusion is a correct option
Explanation:
Nuclear fusion processes begin when the star enters the main sequence.
Nuclear fusion: by which energy is produced by the star,the star become the main sequence star and it gets turned on.
Formation of a star takes place when it is very hot, hydrogen atom fuse to form helium in the core region,and energy is released by the fusion process and star enters the main sequence by the processes nuclear fusion.
This fusion results in outward pressure which balances the inward pressure, which is caused by gravity and thus stabilizes the star.
Thus Nuclear fusion processes begins when a star enters the main sequence.
Which statement best describes enzymes?
(1) they slow down the rate of breathing
(2) they are the building blocks of polymers
(3) they speed up the conduction of impulses along a nerve cell
(4) they influence the rate of chemical reactions
1
Explanation:
I I don't know if it is the best but I know that it is true
The asthenosphere occupies a majority of the mantle.
Please select the best answer from the choices provided
T
F
Answer:
The asthenosphere occupies a majority of the mantle.
TRUE
Answer: False
Explanation:
The asthenosphere constitutes to about 180 km of the total mantle which is almost 2900 km. As compared to asthenosphere the total area covered is very less.
It cannot be said that it covers a large area of mantle. The asthenosphere is the highly viscous but mechanically weak and ductile region which lies in the upper part of the mantle.
It lies just below the lithosphere in between 80 to 200 km below the surface.
Hormones are chemical molecules produced by endocrine glands. One such endocrine gland is the thyroid gland, which synthesizes the thyroid hormone, which in turn affects the heart muscles. Which two statements describe the probable reason for the function of the hormone?
The cells in the heart have specific receptors that allow for the intake of hormones.
The heart and the endocrine glands have the exact same types of cells.
All cells make the same types of hormones.
Thyroid hormones show their effect on the heart by means of specialized cells.
Thyroid cells and cardiac cells have different DNA.
The cells in the heart have specific receptors that allow for the intake of hormones and Thyroid hormones show their effect on the heart by means of specialized cells are statement, that describe the probable reason for the function of the hormone. Thus option A and D are correct.
What is hormone?Hormones are signaling molecules which are chemical substances, that work as a messenger in the body of multicellular organisms. For growth of multicellular organisms, including, plants, animals, and fungi hormones play crucial role.
Vertebrates consist of endocrine signaling system, including specialized organ called endocrine gland which secret hormone.
α-type receptors of thyroid hormones are widely shown in cardiac cells and thyroid hormones show their effect on the heart by means of specialized cells called T3 cells.
Therefore option A and D are correct.
Learn more about hormones, here:
https://brainly.com/question/6337416
#SPJ7
Question 2 of 10
2 Points
Scientists know that some methods used to increase the food supply are
dangerous to humans. Which method is known to be harmful to human
health?
O
O
O
A. Using genetically engineered crops
B. Spreading pesticides with planes
C. Increasing the number of vertical farms
O
D. Increasing the number of rural farms
Answer: B spreading pesticides
Explanation:
Pesticides can be harmful to humans if consumed and can also alter ecosystems by killing insects that are relied on as a food source by animals and pollinators by plants.
Genetic drift, where allele frequencies randomly change over time, is strongest in Populations. A. Predatory. B.migratory. C. Large. D. Small
Answer:
The correct answer is option D- Small population.
Explanation:
Genetic drift is a random process which changes the allele frequency of a population in a short period of time. This change in allele frequency causes evolution and the allele frequency change can either decrease or increase over time.
This process is generally affected by the population size as a small population will have large sampling error which will have the strongest changes in allele frequency and alleles will have a greater chance of loss.
Thus, option D- Small population is the correct answer.
Answer:
The correct answer is option D, that is, small.
Explanation:
A phenomenon in which the frequencies of alleles within a population get alter by chance alone as an outcome of sampling error from generation to generation is termed as genetic drift. It is a random process, which can result in huge modifications in populations over a short time duration.
This random drift is a result of repeated small population sizes, extreme decline in the size of the population known as founder events and bottlenecks where a novel population emerges from a small number of individuals. The genetic drift results in the fixation of genotypes or alleles in the populations.
Which ranks these careers that employees are most likely to hire from the least to greatest?
Answer:
Level of employees in the company:
Operator Leader Foreman Supervisor Assistant Manager Manager Deputy General Manager General Manager
Explanation:
Operator
Operator is the name of a position for employees or workers, where this position occupies a position at the lowest level in the ranks of the structure of a factory or company.
Leader
The leader is the name of a position for an employee or factory worker for a position above the operator position and in charge of the operator position within the factory or company structure.
Foreman
Foreman is the name of a position in the ranks of a structure in a factory or company that occupies a position in charge of the position of leader and operator.
Supervisor
The supervisor is the name of a position in the ranks of a structure in a factory or company that acts as the head of a section in a particular division and is in charge of the foreman, leader, and operator.
Assistant Manager
The assistant manager is the name of the position of employee or worker in the management structure of a factory or company that acts as an assistant or assistant manager to activate the liaison between activities in the field with internal divisions or management departments.
Manager
Manager is the name of a position for employees or workers in the management structure of a company or factory that acts as the motor in a division or department.
Deputy General Manager
Deputy General Manager is the name of a position for employees or workers in the ranks of a structure in a factory or company that acts as a representative or assistant to the highest leadership in a division.
General Manager
General Manager is the name of a position for employees or workers in the ranks of a structure in a factory or industry that acts as the highest leader in a division or department.
#AnswerForTrees
Answer:
its d
Explanation:
just in case you got confused on this man or woman above me
what is the term for the two sets of chromatids formed in the parent cell A.haploid
B.Diploid
C.Gamete
D.Tetrad
Answer:
TetradExplanation:
Tetrad is the term for the two sets of chromatids formed in the parent cell. Thus, the correct option is D.
What are chromatids?Chromatids are refers to as which allow cells to store two copies of their information in preparation for cell division. This is important to establish that daughter cells are healthy and fully functional and carrying a full complement of the parent cells DNA.
Chromatid permits cells to store two copies of their information in formation for cell division.
For more information regarding chromatids, visit:
https://brainly.com/question/1086423
#SPJ2
10. Which criterion is not used to describe a mass movement event?
A. The angle of the slope
B. The type of material that failed
C. The rate at which the movement occurred
D. The motion of the failure
your answer is:
B. The angle of the slope.
Answer: The angle of the dangle
Explanation:
Which hormone is used by both males and female?
Answer:Luteinizing
Explanation:This hormone is considered a gonadotrophin hormone because of its role in controlling the function of ovaries in females and testes in males, which are known as the gonads.
hope this helps
Hello There!
The hormone that is used by both males and females is called "ADRENALINE"
Adrenaline is the body's activator, released in response to anxiety, exercise, or fear. This creates your "Fight-Or-Flight" response.
What is 25 m rounded to one significant figure?
Answer:
20
Explanation:
Fungi can act as decomposers in the environment. Why is this important?
Fungi can act as decomposers in the environment. The importance is degradation or breakdown of materials in wastes and dead organisms to create nutrients for the soil.
Further Explanation:DecomposersDecomposers are heterotrophic organisms which get their nutrition by breaking down remains of dead plants and animals. Examples of decomposers include Fungi, bacteria, snails, etc.DecompositionDecomposition is the process of breaking down the dead remains of plants and animals and wastes to generate nutrients for the soil.It plays an important role in an ecosystem. Importance of decomposition in an ecosystemIt helps in recycling of the nutrients such as carbon and nitrogen in an ecosystem.Dead organic material is broken down into water, minerals, carbon dioxide and other chemicals that can be consumed by plants. Nutrients are returned to the soil from where plants can reuse the same.Therefore, nutrients obtained from the dead organisms and wastes are recycled back into the soil to be used by producers.In addition, they help in removing or cleaning the dead matter and waste material from the ecosystem.Other roles of decomposers in an ecosystem include, nitrogen fixation, nitrogen and carbon recycling and maintenance of the ecosystem by cleaning up dead material through decomposing it and recycling nutrients into the soil.Keywords: Decomposers,decomposition, importance of decomposition to an ecosystem.
Learn more about: Decomposers and their roles: https://brainly.com/question/4723069Importance of decomposers: https://brainly.com/question/4723069Role of decomposers: https://brainly.com/question/4723069Level: High school
Subject: Biology
Topic: Ecology
Sub-topic: Decomposers
What is the input of the light-dependent reactions, labeled X?
CO2, H20, O2, and light
O CO2, H2O, and light
O CO2 and H20
H20 and light
Mark this and return
Sa
Answer:
H20 and light ( last choice)
The correct option is O CO2 and H2O.
In photosynthesis, light-dependent reactions occur in the thylakoid membranes of the chloroplasts. These reactions convert light energy into chemical energy in the form of ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate).
The input for the light-dependent reactions includes water (H2O) and light energy. Water molecules are split through a process called photolysis, releasing electrons, protons (H+ ions), and oxygen (O2) as byproducts. The electrons are then transferred through a series of electron carriers, generating ATP and NADPH.
While carbon dioxide (CO2) is involved in the subsequent light-independent reactions, also known as the Calvin cycle or the dark reactions, it is not directly an input for the light-dependent reactions. The Calvin cycle utilizes ATP and NADPH produced in light-dependent reactions, along with carbon dioxide, to synthesize glucose and other organic molecules.
Therefore, the input for the light-dependent reactions is CO2 and H2O, making option "CO2 and H2O" the correct choice.
To know more about photolysis:
https://brainly.com/question/29504259
#SPJ6
Which statement describes the impact of ocean currents on climate
Answer:
Ocean currents create changes in the temperature of air over land masses
Explanation:
Oceans capture a lot of heat from the sun than land. This is because water has a very high heat capacity. This heat becomes distributed across the globe through oceans currents. The water vapor that evaporates from the oceans heats up the atmosphere creating low-pressure systems. These create winds that blow up the heat and moisture over land creating rain/precipitation. This influences climatic systems across the globe.
Answer:
B:Ocean currents cause the temperature of air over large bodies of water to change.
Explanation:
How is DNA copied?
A. The sense strand of DNA is used as a template to create both strands of the new double helix.
B. The mRNA made from the DNA is used as a template to create a complementary strand of DNA.
C. Each single strand of DNA is used as a template to create a complementary strand of DNA.
D. The antisense strand of DNA is used as a template to create both strands of the new double helix.
Answer:
A) The sense strand of DNA is used as a template to create both strands of the new double helix.
Explanation:
Ok, the DNA is "copied" in the tanscription process. The transcription is the process by which the information in a strand of DNA is copied into a new molecule of messenger RNA (mRNA). Also, the DNA safely stores genetic material.
During the process of transcription a single strand of RNA is synthesized using a double stranded DNA molecule as a template. The two strands of the DNA molecule are separated from one another, exposing the nitrogenous bases. Only one strand is actively used as a template in the transcription process, this is known as the sense strand, or template strand. The complementary DNA strand, the one that is not used, is called the nonsense or antisense strand.
Which symbol is used to label a male that expresses a sex-linked disorder on a pedigree?
Answer:
black solid colored square box
Explanation:
A sex-linked disorder of male on a pedigree is expressed by a black solid colored square box.
While a male that is just the carrier of sex-linked disorder is represented by by a square box whose half part is solid black in color while the other part is colorless.
A colorless square box in a pedigree signifies a male that is neither affected by any trait associated with sex linked disorder nor even is a carrier of any trait/disorder.
On a pedigree, a male that expresses a sex-linked disorder is labeled with a shaded square. The shading is used to indicate that the individual has the disorder or is affected by it. This is because sex-linked disorders, such as hemophilia or color blindness, are caused by mutations on the X chromosome, and males only have one X chromosome.
What is a sex-linked disorder?A sex-linked disorder is a genetic disorder that is caused by an abnormality on the sex chromosomes, which are the X and Y chromosomes that determine an individual's sex.
Sex-linked disorders are typically caused by mutations on the X chromosome, as the Y chromosome is smaller and carries fewer genes. Because females have two X chromosomes and males have one X and one Y chromosome, sex-linked disorders are usually more common in males.
Therefore, if a male inherits an X chromosome with a mutated gene, he will express the disorder, as there is no second X chromosome to compensate for the mutation.
Females, on the other hand, have two X chromosomes, and the presence of a mutated gene on one X chromosome can often be compensated for by a normal gene on the other X chromosome. Therefore, on a pedigree, females who are carriers of a sex-linked disorder are labeled with a shaded circle.
To know more about sex-linked disorders:
https://brainly.com/question/29631222
#SPJ5
Which energy pathway can a person without the ability to see color work in?
Answer:
Generation
Explanation:
This would be the answer because there is no color in it.
Hope this helps!⊂:
Sickle-cell anemia is an example of codominance. What implications does this have for people with one or two copies of the sickle-cell gene?
A. People with two copies of the mutated gene have healthy red blood cells. People with one copy of the mutated gene don't have the disease but are carriers of the disease.
B. People with two copies of the mutated gene have sickle-cell anemia. People with one copy of the mutated gene have healthy red blood cells.
C. People with two copies of the mutated gene have sickle-cell anemia. People with one copy of the mutated gene have both healthy and misshapen red blood cells and are carriers of the disease.
D. People with two copies of the mutated gene are carriers of the disease. People with one copy of the mutated gene don't have the disease.
Answer:
The correct answer is C
Explanation:
Codominance means that the result of two different genes will give separated characteristics of both. For example, if an animal has a gene of red skin and another gene of white skin, it will have red in some parts of the body and white skin in other parts. It can be confused with incomplete dominance, which combines the characteristics of the genes, in these case the skin would be pink, the combination of white and red. People who have one gene of it are carriers of the disease of course, because it can be passed to their sons.
People with two copies of the sickle-cell gene have sickle-cell anemia, while individuals with one copy are carriers and generally healthy without the disease symptoms but can pass the trait onto their offspring, option B is correct.
Sickle-cell anemia is an example of codominance and autosomal recessive inheritance. When individuals have two copies of the mutated gene, they have sickle-cell anemia, characterized by red blood cells that can become misshapen, or 'sickled,' under certain conditions. This causes serious health complications. For those with only one copy of the mutated gene (heterozygous), they display what is known as 'sickle cell trait.' These individuals generally do not suffer from the symptoms of sickle-cell anemia and are often healthy, but they are carriers of the disease. Their red blood cells may sickle under extreme conditions, but typically, they have a mix of normal and abnormal hemoglobin. As carriers, they have the potential to pass the mutated gene to their offspring.
Which of the following is NOT considered a scientific property of water?
Answer:
Carbon bonding
Explanation:
answer it is
Carbon bonding is not considered a scientific property of water. While it possesses scientific properties like cohesion, adhesion, surface tension, etc.
What are Scientific properties?Scientific properties may be defined as all those qualities and measurements which are observed on the basis of physical and chemical aspects of any compound.
The complete question is: Which of the following is NOT considered a scientific property of water? And the options are cohesion, adhesion, surface tension, and carbon bonding.
Water possesses a tetrahedral structure with two hydrogen atoms which are bonded to a centrally positioned oxygen atom. It can allow hydrogen bonding but prevents carbon bonding.
Therefore, carbon bonding is not considered a scientific property of water.
To learn more about Water, refer to the link;
https://brainly.com/question/18681949
#SPJ2
Which phrase is the best summary of the model shown?
A. The transfer of the sun's energy through trophic levels
B. A series of aerobic and anaerobic reactions
C. A transformation of light energy into chemical energy
D. The breakdown of food molecules
How is the male reproductive system different from other body systems?
It isn’t necessary to vital signs.
It monitors other body systems, and adjusts if necessary.
It transports items from one system to another.
It is the only system that produces hormones in the male.
Hello There!
The question you asked is how is the male reproductive system different from other body systems?
The answer is "It isn’t necessary to vital signs."
unlike other body systems, the male reproductive system is not essential for the life of a living organism.
Answer:
A. It isn't necessary to vital signs.
Explanation:
The Male Reproductive System is made up of internal and external organs. They undergo a slow maturation ending in puberty, that is, when the sex cells are available to originate another being. This system differs from other systems in the body because it does not need vital signs.
The organs that make up the male reproductive system are: urethra, penis, seminal vesicle, prostate, vas deferens, epididymis and testicles.
What is the function of the somatic nervous system?
connects the brain and the spinal cord to the rest of the body
carry signals to the muscles and glands
includes all nerves controlling the muscular system and external sensory receptors
controls internal organs like the heart and bladder
The function of somatic nervous system is to connect the brain and the spinal cord to the rest of the body.
Option A
Explanation:
The "Somatic nervous system" is division of "peripheral nervous system". Somatic nervous system has two categories of neurons which differ in their mode of impulse transmission these are afferent neurons that carries the signal from sensory receptors of the body to the central nervous system (CNS) and efferent neurons that carries the nerve impulses from the CNS to the other parts of body which have voluntary muscles hence forming a reflex arc. Afferent neurons (sensory neurons) and efferent neurons (motor neurons) are only involved in controlling the voluntary muscles.
What limitations were placed on the presidency by
the Twenty-Second Amendment? Check all of the
boxes that apply.
Presidents could only be elected to office
twice.
Presidents could no longer choose vice
presidents as running mates.
Presidents could only serve for a maximum
of ten years.
Presidents could only be elected after serving
in Congre As.
Answer: A) Presidents could only be elected to office twice.
Explanation:
The 22nd Amendment states
"No person shall be elected to the office of the President more than twice, and no person who has held the office of President, or acted as President, for more than two years of a term to which some other person was elected President shall be elected to the office of the President more than once."This Amendment was passed in 1951 as a direct result of President Franklin D. Roosevelt serving four terms as President of the United States.
What is a substrate?
Answer:
A substrate is a molecule acted upon by an enzyme. A substrate is loaded into the active site of the enzyme, or the place that allows weak bonds to be formed between the two molecules. An enzyme substrate complex is formed, and the forces exerted on the substrate by the enzyme cause it to react, and become the product of the intended reaction. The bonds that form between the substrate and enzyme cause the confrontational change, or shape change, in the enzyme. The resulting shape change is what applies pressure to the substrate, either forcing molecules together or tearing them apart.
18. Which process does the plant need energy to perform?
A. Absorbing water into the root hairs
OB. Release of oxygen into the atmosphere
C. Transpiration of water
OD. Pulling nutrients into the root hairs
Answer:
. Absorbing water into the root hairs...Answer:
OD. Pulling nutrients into the root hairs
Explanation:
Uptake of minerals, ions into root hairs from the soil is done on the expense of energy. This type of absorption is called active transport because minerals are in higher concentration in the root hairs as compared to the soil. Plants need more nutrients such as amino acids on the expense of energy actively.
Eutrophication is caused by___
Answer:
Eutrophication can be defined the process by which the there is a significant increase in the population of algal growth.
This increase in the algal growth is due to the increase in the phosphorous and nitrogen in the water bodies.
The phosphorous increases the growth of algae in the nearby water bodies and depletes the oxygen level in water bodies.
So, Eutrophication is caused by excess of fertilizer(phosphorous) in water.
____ are macromolecules that are always non-polar
A. Water
B. Carbohydrates
C. Lipids
D. Proteins
Final answer:
Lipids are always non-polar macromolecules consisting of fats, oils, waxes, phospholipids, and steroids, and are known for their hydrophobic properties. They differ from other macromolecules like proteins and carbohydrates, especially in their role in biological systems such as forming the myelin sheath in the nervous system.
Explanation:
Lipids are macromolecules that are always non-polar. These include various fats, oils, waxes, phospholipids, and steroids. Lipids are known for being hydrophobic, which means they do not mix with water. In contrast, molecules like carbohydrates (which include substances such as cellulose and starch that are polysaccharides) and proteins can have polar characteristics. Also, unlike nucleic acids and proteins, lipids are generally not considered to be antigenic because they do not trigger an immune response as effectively.
It's worth noting that water is not a macromolecule but rather a polar molecule essential for life, and it's not organic. Moreover, some molecules like proteins can be amphipathic, meaning they have both polar and nonpolar regions, thus allowing them to interact with a variety of substances.
Within the nervous system, myelin, which is the insulating layer around nerves, is primarily composed of lipids and proteins. The interaction of these two types of macromolecules contributes to the efficient transmission of nerve impulses.
Which distribution pattern in species can be considered the most easily measurable?A
equal distribution
B. sparse distribution C. local endemios
D. migratory
Reset
Nest
Answer:
C. local endemios
Explanation:
The most easily measurable distribution pattern in species can be considered the one at the local endemios. The reason why the local endemios are the easiest for measuring the distribution is because they live in small area, and only in that particular area, nowhere else in the world. This makes it very easy for measuring their distribution, as the area in which they live is very limited, has clearly defined natural borders, and all of the population is located in there.
Answer: Local endemios pattern is considered one of the most effective measure for distribution pattern in species.
Explanation: Because they live in a same area and only in that particular region,through out the world. As the area in which they live is very limited and have clearly marked out the boundary, and all the population is located in there.
Oxygen enters your body via the respiratory system by moving the
Answer:
B Trachea to the bronchioles to the bronchi because you don't have to breath from your nose
Explanation:
nose to the trachea to the bronchi
Using the drop-down menus, identify the
structures common to all cells.