are the biochemical agents in the body that work to stimulate the brain structures that give rise to experienced motivational states in everyday life. a. circuits and formations b. emotions and drives c. enzymes and monoamines d. glands and release-chemicals e. neurotransmitters and hormones
Answers
Neurotransmitters and hormones are the biochemical agents in the body that work to stimulate the brain structures that give rise to experienced motivational states in everyday life.
Neurotransmitters are the chemical agents that carry signals in chemical form from one neuron to another which is then converted into electrical signals. Neurotransmitters can be excitatory or inhibitory. The examples of neurotransmitters are: GABA), glutamate, histamine, dopamine, etc.
Hormones are the chemical messengers that are released from an organ or gland and reach to their site of action to perform their specific function. They usually travel through the blood to their target site. The examples are: growth hormones, ADH, oxytocin, LH, etc.
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Related Questions
is when you give your friends list on your bike you have to pedal harder and faster to keep the same speed acceleration as you had when you’re on your bike alone is for a second or third law
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hello please help i’ll give brainliest
Answers
Answer:
Landslide
Explanation:
Landslides are sudden falls of rocks due to gravity.
Cuáles son los beneficios y daños que producen las siguientes sustancias. Dióxido de carbono Monóxido de carbono Óxido nítrico Dióxido de azufre Monóxido de hierro
Answers
Answer and Explanation:
Dióxido de carbono:
- Beneficio: Gas que se encuentra en la naturaleza y que resulta indispensable para las plantas para llevar a cabo la fotosíntesis. No nocivo en concentraciones entre 300 ppm a 550 ppm.
- Daño: A elevada concentración, cercanas a 30.000 ppm, es considerado contaminante y provoca alteraciones como mareos, dolor de cabeza, somnolencia, problemas para respirar. A concentraciones superiores puede causar asfixia.
Monóxido de Carbono:
- Beneficio: En muy bajas concentraciones puede ser beneficioso para tratar algunas enfermedades vasculares. También puede ser utilizado como marcador o indicador de salud al medir el monóxido de carbono exhalado.
- Daño: Produce intoxicación y causa dolor de cabeza, mareos, debilidad confusión, entre otros. En alta concentración, y sin ser advertido, puede incluso llevar a la muerte. Es un gas altamente inflamable por lo que a parte de las afecciones a la salud por inhalación, también puede provocar explosiones.
Óxido nítrico:
- Beneficios: Posibilita una mayor recepción de nutrientes y oxigeno en músculos, favoreciendo la vasodilatación y la irrigación sanguínea. Regula la presión arterial.
- Daño: En exceso, en una persona que no lo necesite, puede causar daños en los riñones e hígado y puede alterar el pH interno.
Dióxido de Azufre:
- Beneficios: En baja concentración, puede actuar como conservante impidiendo la aparición de bacterias, lo que puede resultar de utilidad en algunos alimentos.
- Daño: En estado gaseoso involucrado en el cambio climático y en la lluvia ácida. Provoca irritación de ojos, irritación de vías respiratorias y de membrana mucosa, y piel. También puede provocar dolores de cabeza, nauseas, y otros malestares. A través de las vías respiratorias, pasa al sistema circulatorio.
Monóxido de hierro:
- Beneficios: Muy utilizado en la industria. Es utilizado en cosmética y como pigmento para distintas utilidades. El oxido de hierro colabora en la limpieza de contaminación ambiental por los gases producidos por vehículos y fábricas.
- Daños: La inhalación crónica de monóxido de hierro puede resultar en siderosis, y puede resultar en cáncer pulmonar.
Which of the following distinguishes scientific law from scientific theory?
A law is supported by a substantial body of evidence.
A law explains a set of related phenomena.
A law is often non-mathematical.
A law is consolidated by repeated testing of a phenomenon.
Explain the difference between the theory of general relativity and the law of gravity.
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Answer:
Explanation:
In general, a scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. The explanation of a phenomenon is called a scientific theory.
The answer is IN FACT:
A law is consolidated by repeated testing of a phenomenon.. Explain how the polarity of water is a major factor that
controls the rate of infiltration in soils. 300 words
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The polarity of water is a major factor that controls the rate of infiltration in soils. This phenomenon is primarily attributed to the unique properties of water molecules and their interactions with soil particles.
Water is a polar molecule, meaning it has a slight positive charge at one end (hydrogen) and a slight negative charge at the other end (oxygen). This polarity arises due to the unequal sharing of electrons between hydrogen and oxygen atoms within the molecule. As a result, water molecules exhibit an electric dipole, with the oxygen side being more electronegative and the hydrogen side being more electropositive.
When water comes into contact with soil particles, which may be composed of minerals or organic matter, the polarity of water plays a crucial role in infiltration. The surface of most soil particles carries a net negative charge (known as a negative surface charge). These charged particles attract the positively charged hydrogen ends of water molecules through electrostatic forces.
This attraction between water molecules and soil particles helps to overcome the force of gravity acting against infiltration. Water molecules bind to the soil particles and create a thin film of water around them. This process is known as adsorption. The adsorbed water molecules create a bridge between soil particles, reducing the friction between them and facilitating further infiltration.
Moreover, the polarity of water also contributes to its cohesive and adhesive properties. Cohesion refers to the tendency of water molecules to stick together, while adhesion refers to the ability of water molecules to adhere to other surfaces. These properties allow water to form continuous columns or chains, enhancing its movement through soil pores and facilitating infiltration.
Additionally, the polarity of water enables it to dissolve various substances. Soil particles often contain ions, organic compounds, and nutrients that are essential for plant growth. Water's ability to dissolve and transport these solutes further aids in nutrient uptake by plants during infiltration.
In summary, the polarity of water is a critical factor influencing the rate of infiltration in soils. Its ability to form hydrogen bonds with soil particles, reduce friction, and facilitate the movement of water through soil pores is essential for efficient water infiltration and nutrient transport in terrestrial ecosystems.
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How can a geological features that occur at plate boundaries be used to determine which direction plates are moving
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Mapping narrow belts of earthquakes, volcanoes, and young mountain ranges helps define and identify plate borders.
What kind of geologic structure causes a plate border to move?We refer to a diverging plate boundary as two plates that are moving apart. Magma rises from the interior of the Earth and erupts at these borders, creating new lithosphere crust. Oceanic spreading ridges are submerged mountain ranges formed by diverging plate borders, which are the majority of them.Three different types of tectonic boundaries are produced by the movement of the plates: convergent boundaries, where plates move toward one another; divergent boundaries, where plates move apart; and transform boundaries, where plates move laterally with respect to one another. Between one and two inches every second (three to five centimeters).For more information on plate boundaries direction kindly visit to
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A single b lymphocyte can recognize multiple antigenic determinants. true false
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This statement is true. A single B lymphocyte can recognize multiple antigenic determinants.
Receptors on B lymphocytes, known as immunoglobulins or antibodies, are highly selective for the antigenic determinants they are designed to target. Yet one cell has multiple antibodies. This allows detection of many antigenic determinants. By forming antibodies, B cells are essential for pathogen-specific immunity. Immunoglobulin immobilized on the surface of B lymphocytes enables them to recognize soluble antigens and develop into plasma cells that can secrete immunoglobulins and produce antibodies. B cells also release cytokines and present antigens. For this reason they are called professional antigen-presenting cells (APCs). An animal's B cells originate in the bone marrow, which makes up most of the bones. B cells arise in the bursa of Fabricius, a lymphoid organ in birds.Therefore, the statement is true.
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The remora fish attaches itself to sharks for transportation and access to food scraps. The shark is not harmed. What type of example is this?
Answers
Answer:
That shark is trained by human
Sorry this is late: You didn't put the answer options, but I was on this question, so the correct answer is commensalism. Don't forget to put the answer options, or no one will understand it. Good luck with the rest of your work!
BRAINIEST IF CORRECT What is the ER most like in the cell
A) A factory because it makes proteins
B) A gate because it lets things in and out of the cell
C) The brain because it has the instructions and the genetic material
D) A highway with trucks because it transports molecules
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Answer:
D) A highway with trucks because it transports molecules
Explanation:
Molecules, such as proteins, are transported from the ER in small sacs called transport vesicles to their proper destinations, much like on an intracellular highway.
Analysis for the results of the experiment how much did the egg change of size answer should be in centimeters what type of transport occurred in this light explain your answer rational for the support or rejection of your hypothesis description of how the investigation could be tested further
Answers
Answer:
Early Cells Lab
Step by step
1. How much did the egg change in size? (answer should be in centimeter)
2. Was your hypothesis correct? Why or why not
Safety Notes
1.Wash your hands carefully after each time you touch the egg.
2.Be sure that you have permission and supervision from a guardian before completing this lab activity.
3.The egg and vinegar are safe for kitchen drains, but check with a guardian for the preferred method of disposal in your kitchen.
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Explanation:
List five substances a cell might use cell transport (like diffusion) to move across the membrane.
Answers
Answer:
1.ions
2.waste
3. water
4.small non-polar gases
5. nutrients
Explanation:
all are examples of facilitated diffusion and simple diffusion
1. Choose the words from the word box below to finish the paragraph. (Some words may be used more than
once and some not at all.)
diploid
haploid
gene
homologous homozygous heterozygous
allele
N = 23
heterologous
2N = 46
A human cell that carries a double set of chromosomes is called a
46, number of chromosomes. One
of each
chromosome. In sexual reproduction, meiosis produces
chromosome. In humans, these cells contain
cell. The cell contains 2N =
is located on each [Drop Down 4]
gametes with one of each kind of
number of chromosomes.
Answers
A human cell that carries a double set of chromosomes is called a diploid cell, with 2N = 46, the number of chromosomes.
What is chromosome?A chromosome is a long, continuous thread of DNA that houses genes, which are the genetic building blocks of life.
As they are engaged in procedures including cell division, DNA replication, and the control of gene expression, chromosomes play a crucial part in the cell cycle.
A human cell having two sets of chromosomes is referred to as a diploid cell, with 2N = 46 chromosomes.
Each pair has one homologous chromosome, which has the same genes but occasionally distinct variations known as alleles.
Meiosis creates haploid gametes, which have one of each type of chromosome, for reproduction.
Thus, this can be the match for the given scenario.
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the phases of meiosis shown are out of order. Can you name of each of them? plz help me
Answers
what are the raw material and product in electron transport chain in biology
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Answer:
The electron transport chain is a series of protein complexes and electron carrier molecules within the inner membrane of mitochondria that generate ATP for energy. Electrons are passed along the chain from protein complex to protein complex until they are donated to oxygen.
Explanation:
Hope this helps.
The end product of the electron transport chain is ATP (adenosine triphosphate), which is synthesized through a process called oxidative phosphorylation. During this process, the energy from the high-energy electrons is used to pump protons across a membrane, creating a proton gradient that drives the production of ATP
Your body also generates energy by burning the food you eat. how many engines does your body have?
Answers
The human body has one engine for generating energy through the process of food combustion.
The human body has a remarkable ability to convert food into energy through a process known as metabolism. Metabolism involves the breakdown of food molecules, such as carbohydrates, proteins, and fats, to release energy that can be utilized by the body's cells. This energy production occurs within tiny structures called mitochondria, often referred to as the "powerhouses" of the cells. Mitochondria use oxygen to extract energy from food molecules in a process called cellular respiration.
The human body operates on a complex system of interconnected metabolic pathways, all working together to ensure the efficient conversion of food into energy. These pathways involve various biochemical reactions that take place within cells, ultimately leading to the production of adenosine triphosphate (ATP), which is the primary energy currency of the body. The mitochondria play a crucial role in this process by generating ATP through the oxidation of food molecules.
Therefore, while the human body is an intricately designed and multifaceted organism, it has one primary engine—the mitochondria—for generating energy by burning the food we consume.
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HELLPPPPP please!!!!
Answers
Answer:
D
Explanation:
because it shows if the child will have a dominant trait from a parent or a recessive trait, which you can also find out what color eyes, hair, etc, your child will be born with.
The tail of a comet always points towards the sun true or false
Answers
What are the disadvantages of mammals
Answers
If a blood cell is sitting in a hypertonic solution, what will happen to the cell?
A. Nothing will happen to the cell, it will stay the same
B. The cell will expand as water moves into the cell to try to balance the solute concentrations
C. The cell will shrink as water moves out of the cell to try to balance the solute concentrations
D. The cell will expand as salts move into it from the outside environment.
Answers
Answer:C. The cell will shrink as water moves out of the cell to try to balance the solute concentrations
Explanation:
A cell placed into a hypertonic solution will shrivel and die by a process known as plasmolysis.
Refer to the picture; the water sticks to the leaf
because of:
Answers
Answer:
Cohesion is when water sticks to things simply because it is water and has polar bonds which can create some polar interaction. Capillary action is precisely what drives water up to the branches and leaves at the top.
Explanation:
Hhv-5 infectious in pregnant women can be particular concern because this virus can be?
Answers
Hhv-5 infectious in pregnant women can be particular concern because this virus can be teratogenic.
What is teratogenic?Teratology is the study of aberrant physiological development across the whole life cycle of all species, including plants. Dysmorphology is a branch of medical genetics that focuses on the classification of congenital deformities.Teratogens are substances that, when exposed to a pregnant woman, may result in physical or functional abnormalities in the human embryo or fetus. Such substances include, for example, alcohol and cocaine.A teratogen is an agent that increases a baby's risk of developing a birth defect or can actually cause one. They are items to which a mother might be exposed while expecting.Teratogens can result in neural tube abnormalities like spina bifida during this time. Throughout the entire pregnancy, certain organs are vulnerable to teratogens. The baby's brain and spinal cord are included in this. Alcohol can be harmful at any point during pregnancy since it has an adverse effect on the brain and spinal cord.
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How long does menopause last after total hysterectomy.
Answers
The length of time menopause lasts after a total hysterectomy will depend on different factors such as age, type of hysterectomy, and health conditions. However, the main answer is that menopause will last for life, after a total hysterectomy.
Menopause is a natural process that occurs when a woman has not had a menstrual period for 12 consecutive months. This happens when the ovaries stop producing eggs and estrogen hormones. During a hysterectomy, a woman's uterus and ovaries are removed. When the ovaries are removed, it can cause an abrupt drop in estrogen production that can lead to menopause symptoms.
Menopause after a total hysterectomy can happen immediately or several years later. This depends on whether the ovaries were removed or left intact. A woman who has both ovaries removed will enter menopause immediately after the surgery. This is known as surgical menopause. Women who still have their ovaries may enter menopause later, but it will still happen because their ovaries will eventually stop producing estrogen. Menopause after total hysterectomy can cause symptoms such as hot flashes, night sweats, mood changes, vaginal dryness, and decreased libido. These symptoms can last for several years.
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HELP ITS DUE RIGHT NOW ( BIOLOGY QUESTION !! )
Answers
Answer:
f:cellular reproduction
Answer:
The answer is F
Explanation:
Cellular reproduction made the knew bark.
Mendelian inheritance does not apply to the inheritance of alleles that result in incomplete dominance and codominance.
Why? How are the alleles in these two situations different from the alleles that Mendel studied?
Answers
Answer:
Explanation:
Phenotypes that Mendel studied was controlled by one gene that had two possible alleles, dominant and recessive allele. This made it possible to see just one or the other phenotype (total of 2 phenotypes).
Well now we know that a characteristic may be controlled by one gene with two alleles, but the two alleles may not have a traditional relationship of dominant and recessive. Which is why we see the patterns like codominance and incomplete dominance.
Codominance is when both alleles are expressed equally in the phenotype of the heterozygote. For example, you have a black flower and red flower, a codominant flower would have both black petals and red petals. Do you see how the traditional relationship of one being dominant and other being recessive no longer holds because you express both alleles.
Incomplete dominance occurs when the phenotype of the offspring is somewhere in between the phenotype of both parents. SO a black and red flower would make an offspring with purple petals where neither of the alleles reigns supreme over other rather we get a mixture of both alleles.
The passing of the alleles from the parent to the offspring in a particular manner was given by Mendel, he defined the passing of the recessive and the dominant allele in a specific way from generations.
Mendelian inheritance does not apply to incomplete and co-dominance.
The exception of the Mendelian inheritance can be explained as:The condition in which the allele is not completely expressed in the progeny is called incomplete dominance while the expression of both the recessive and the dominant allele in the progeny together is called co-dominance.In the co-dominance case of hetero-zygotic phenotype, the allele is depicted equally. The law of recessive and dominance does not apply here and both the alleles are expressed in the progeny in equal ratio.In the incomplete dominance condition, the phenotypic character of the progeny is in the middle and a mixture of both the dominant and the recessive allele.Therefore, the Mendelian inheritance law does not apply to incomplete dominance and co-dominance.
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The properties of carbon atoms allow carbon to easily bond to other carbon atoms to form _____ and complex macromolecules with unique structures and special functions.
Very Large or
Very Small
Answers
The properties of carbon atoms allow carbon to easily bond to other carbon atoms to form very small and complex macromolecules with unique structures and special functions.
What do you mean by Macromolecules?Macromolecules may be defined as biological molecules which carry a large number of atoms in them.
A Carbon atom has the unique ability to form bonds with other atoms of carbon, hydrogen, oxygen, nitrogen, etc. to form small or large and complex molecules.
Therefore, the properties of carbon atoms allow carbon to easily bond to other carbon atoms to form very small and complex macromolecules with unique structures and special functions.
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A painter mixed 1/9 quart of red paint with 8/9 quart of blue paint to make purple paint.How much purple paint did the painter make? The painter made quart of purple paint.
Answers
Answer:
Purple paint = 1 quart
Explanation:
Red paint = 1/9 quart
Blue paint = 8/9 quart
Purple paint = Red paint + blue paint
= 1/9 quart + 8/9 quart
= (1+8)/9 quart
= 9/9 quart
= 1 quart
Purple paint = 1 quart
The painter made 1 quart of purple paint.
Answer:
Explanation:Yes
Sugar is food for plants, what is the type of sugar plants make?
Answers
Plants make glucose, a type of simple sugar.
1 Which description properly describes a step involved in cellular respiration? Glucose is broken apart, then the energy gained is transferred to the energy molecule. Carbon dioxide is combined with oxygen to make glucose. Water is divided into carbon dioxide and glucose. Oxygen is combined with the energy molecule to energize it. Question 2 What is the location within a cell where cellular respiration occurs? The cell membrane The chlorophyll The mitochondrion The cytoplasm Question 3 Which component is missing from the process of cellular respiration? Glucose + Oxygen → Carbon Dioxide + ________ + Energy Water Sugar Oxygen Carbon Question 4 Which of the following is a true statement about cellular respiration? Cellular respiration occurs only in plant cells. Cellular respiration occurs only in animal cells. Cellular respiration occurs in both plant and animal cells. Cellular respiration occurs in some plant cells and some animal cells. Question 5 During the process of cellular respiration, water becomes oxygen. True False Question 6 Which of the following is not evidence for the law of conservation of mass during cellular respiration? The total number of atoms when glucose and oxygen react stays the same when carbon dioxide and water are produced. C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + energy The products from cellular respiration are created from the same elements (carbon, oxygen, and hydrogen) that make up the reactants. Cellular respiration creates an energy molecule when glucose is broken down.
Answers
Glucose is broken down apart, then the energy gained is transferred to the energy molecules is correctly described the step involved in cellular respiration, hence options 1- A, 2- C, 3- A, 4- C, 5- false, 6- D are correct.
The process of cellular respiration involves the oxidation of biological fuels in the presence of an inorganic electron acceptor, such as oxygen, to produce large amounts of adenosine triphosphate, which is an energy containing compound.
The location of the cellular respiration is mitochondria. Cellular respiration occurs in both plant and animal cells.
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When farm animals become used to sounds and movement such as cars moving near them, they have stopped reacting to stimuli. This is an example ofQuestion options:territory.instincts.fight or flight.habituation.
Answers
The way animals learned to stop responding to certain stimuli is called habituation, it is a form of non-assosiative learning, due to the stimuli do not lead to later actions like punishment or reward.
What are the similarities and differences between phototropism and gravitropism?
NEED HELP ASAP
Answers
Answer:
phototropism is (biology) the movement of a plant towards or away from light while gravitropism is (biology|botany) a plant's ability to change its growth in response to gravity