What soil horizon is the most important for the growth of plants (agriculture) ?
Answers
Explanation:
The O horizon is typically at the top of the soil structure and is made up of mostly organic matter. This organic matter is vital to the growth of crops and other plants because it holds nutrients such as carbon, phosphorus, nitrogen and sulfur.
Related Questions
carry electrical charges at opposite poles.
A . nonpolar bonds
B. polar bonds
C. hydroelectric bonds
D. lonic bonds
Answers
Answer:d
Explanation:
The ______ (the cell body of a neuron) gives rise to branch-like processes called ______, which are the primary sites for receiving signals from other neurons.Multiple choice question.neurosoma, dendrites
Answers
Answer:
Neurosoma
Dendrites
Explanation:
abnormal accumulation of fluid in the brain is called:
Answers
The abnormal accumulation of fluid in the brain is called hydrocephalus. Hydrocephalus occurs when there is an imbalance between the production and absorption of cerebrospinal fluid (CSF), resulting in the buildup of fluid within the ventricles or spaces of the brain.
CSF is a clear fluid that surrounds the brain and spinal cord, providing protection, nourishment, and waste removal. Normally, the production and absorption of CSF are balanced, and the fluid circulates freely. However, in hydrocephalus, there is a disruption in this balance, leading to an excessive accumulation of CSF. The buildup of fluid in the brain can lead to an increase in intracranial pressure, which can cause various symptoms and potentially lead to brain damage if left untreated. Symptoms of hydrocephalus can include headaches, nausea, vomiting, visual disturbances, cognitive difficulties, and in infants, an enlarged head size.
Treatment for hydrocephalus often involves the placement of a shunt system. A shunt is a flexible tube that is surgically inserted to divert excess CSF to another part of the body, usually the abdomen, where it can be reabsorbed. This helps to regulate the fluid levels in the brain and relieve the symptoms associated with hydrocephalus.
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the larger the secondary receptive field, the more sensitive the area is true or false
Answers
True. The larger the secondary receptive field, the more sensitive the area
This is because a larger receptive field means that the sensory neurons are picking up input from a wider area, which allows for a more comprehensive and detailed understanding of sensory stimuli. The larger the secondary receptive field, the less sensitive the area is, because the sensory information from a larger area is combined, leading to less precise and less .
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For either reproductive or therapeutic cloning, we begin with one 'starter cell'. This cell must
meet three requirements:
Answers
The requirements for a starter cell in reproductive or therapeutic cloning. In both processes, the starter cell must meet the following three criteria: Nucleus Containing Genetic Information, Totipotency, and Viability.
Nucleus Containing Genetic Information: The starter cell must have a nucleus containing the complete genetic information of the organism being cloned. This ensures that the resulting clone will have the same genetic traits and characteristics as the original organism.Totipotency: The starter cell must be totipotent, which means it has the potential to differentiate into any cell type within the organism. Totipotent cells, such as fertilized eggs or early-stage embryonic cells, have the ability to develop into a complete organism, making them ideal for cloning purposes.Viability: The starter cell must be viable and able to divide and differentiate into specialized cells. This ensures that the cloned organism can grow and develop properly. Viability is influenced by various factors, such as the health of the cell, the presence of necessary nutrients, and the absence of harmful substances or conditions.In summary, a suitable starter cell for reproductive or therapeutic cloning must have a nucleus containing the full genetic information of the organism, be totipotent, and be viable for successful development. These three requirements ensure that the cloning process can yield a genetically identical organism with proper growth and differentiation capabilities.For more such question on therapeutic cloning
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The basic objective of the layout decision is to __________. conform to manager preferences arrange activities in a line according to the sequence of operations needed minimize the number of nonadjacent loads ensure a smooth flow of work, material, people, and information through the system
Answers
The basic objective of the layout decision is to ensure a smooth flow of work, material, people, and information through the system.
This involves strategically arranging activities in a way that minimizes the number of nonadjacent loads and conforms to manager preferences, but ultimately the goal is to create an efficient and effective layout that allows for optimal productivity and workflow. Achieving this requires careful consideration of the sequence of operations needed. The basic objective of the layout decision is to ensure a smooth flow of work, material, people, and information through the system. This is achieved by organizing activities in an efficient manner, minimizing nonadjacent loads, and considering the sequence of operations required. While manager preferences may play a role, the main focus is on optimizing workflow and overall efficiency.
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A lion has sharp pointed teeth while a buffalo has flat, broad teeth. Why do you think the teeth in these animals differ?
Answers
Answer:
Explanation:A carnivor will have sharp pointed teeth because a lion eats meat and needs to rip it apart whereas a buffalo eats leaves and plants (herbivores)so they have flat teeth as leaves are easier to bite and chew than meat.
Answer:
A lion feeds on flesh while a buffalo feeds on grass.
Explanation:
How does ATP store energy and how is it released for cell processes
Answers
Answer:
Explanation:
In a process called cellular respiration, chemical energy in food is converted into chemical energy that the cell can use, and stores it in molecules of ATP. ... When the cell needs energy to do work, ATP loses its 3rd phosphate group, releasing energy stored in the bond that the cell can use to do work
A Van’t Hoff Plot for a biochemical reaction that is non-spontaneous at all temperatures will have:
A. a positive slope and a positive value for the Y-intercept
B. a positive slope and a negative value for the Y-intercept
C. a negative slope and a positive value for the Y-intercept
D. a negative slope and a negative value for the Y-intercept
Answers
A Van’t Hoff Plot for a biochemical reaction that is non-spontaneous at all temperatures will have: A. a positive slope and a positive value for the Y-intercept.
What is Van’t Hoff plot?The Van’t Hoff plot is a graph of the natural logarithm of the equilibrium constant versus the reciprocal temperature of the reaction. The slope of the graph is equivalent to ΔH/R, while the y-intercept is equivalent to ΔS/R. Here, R is the universal gas constant, T is the temperature in Kelvin, ΔH is the enthalpy change, and ΔS is the entropy change for the reaction.
When the slope of the plot is negative, it indicates that the reaction is exothermic or that the enthalpy change is negative. When the slope of the plot is positive, it indicates that the reaction is endothermic or that the enthalpy change is positive. The y-intercept indicates the entropy change. If the y-intercept is negative, the entropy decreases during the reaction. If the y-intercept is positive, the entropy increases during the reaction.
Van't Hoff plot is a graphical representation of the ln (Keq) versus 1/T, where Keq is the equilibrium constant. The slope and the y-intercept of the Van't Hoff plot provide important thermodynamic information about the reaction involved. When the reaction is non-spontaneous at all temperatures, the Van't Hoff Plot will have a positive slope and a positive value for the Y-intercept. Therefore, the correct option is A. Positive slope and a positive value for the Y-intercept.
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Write a brief report on the common turtles found along the United States coastline nearest to you. Also write about the measures taken to protect them
Answers
Explanation:
Scientists recognize seven living species of sea turtles, which are grouped into six genera. Each sea turtle has both a scientific name and a common name. The scientific name identifies the genus and species, and the common name typically describes some characteristic of the turtle’s body.
Different species of sea turtles like to eat different kinds of food. Sea turtles have mouths and jaws that are specially formed to help them eat the foods they like. And each species of sea turtle eats, sleeps, mates and swims in distinctly different areas. Sometimes their habitats overlap, but for the most part they each have different preferences.
what is the geologic term for folded rocks with the bend at the bottom?
Answers
The geologic term for folded rocks with the bend at the bottom is "syncline."
A syncline is a type of fold in rock layers where the youngest layers are located in the center and the layers progressively get older towards the outer parts of the fold. In a syncline, the rock layers are folded downward, forming a U-shape or a trough-like structure. The bend or curvature of the rock layers is concave upward, meaning the bend is at the bottom.
Synclines are commonly formed during the process of mountain building and tectonic activity. They can be identified by observing the layering and the dip direction of the rock layers. In contrast to synclines, anticlines are folds where the bend is at the top, forming an upward arch shape. The study of folds and their structures is an important aspect of structural geology, helping to understand the deformation and history of Earth's crust.
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The hairs on xander’s arms just started lying flat against his skin. which is most likely his internal body temperature? a. 35°c, or 95°f b. 36°c, or 96.8°f c. 37°c, or 98.6°f d. 38°c, or 100.4°f
Answers
The hairs on Xander's arms lying flat against his skin indicates that his internal body temperature is likely within the normal range. Xander's internal body temperature is around c. 37°C, or 98.6°F.
The human body has a normal internal temperature range of 36.5–37.5°C (97.7–99.5°F), with an average of 37°C or 98.6°F. The hairs on the skin are controlled by small muscles called arrector pili muscles, which contract or relax to cause the hairs to stand up or lie flat against the skin. The contraction of these muscles in response to cold temperatures or fear is called piloerection, which is commonly known as goosebumps. When the body is at its normal internal temperature, the arrector pili muscles are relaxed, causing the hairs to lie flat against the skin. Therefore, if Xander's arm hair is lying flat against his skin, it is most likely that his internal body temperature is within the normal range, around 37°C or 98.6°F.
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Thermodynamics
Heat is thermal energy which is passed on or transferred from one object to another. You may have experienced the many different ways heat can transfer energy; from the rays of the sun, to flow of a breeze.
100% energy in the form of solar radiation
34% reflected from clouds & dust
02% Photosvnines
Wind 1%
Evaporating Water 23%
42% towards heating surface and atmosphere
It takes eight minutes for electromagnetic waves to transfer energy from the sun to the earth. This particular type of energy transfer is known as solar radiation.
As the radiation strikes the earth, molecules within the crust of earth begin to move. As the molecules in the earth begin to collide, the process of conduction begins. If you have ever visited the beach during the warm summer months, you have probably experienced walking on very hot sand. The hot sand is the result of the sun's rays transferring heat through the collision of molecules which is known as conduction. As the land of the earth becomes heated, the molecules in the air above the land are affected. As an air mass becomes warmer, it also becomes less dense and begins to rise. As the density changes and the air mass begin to flow, the process known as convection has begun.
Answer the following questions
1. A light was left on over night on a desk. What kind of heat was being let off from the bulb?
a. Convection
b. Conduction
c. Radiation
d. Solar
2. During the summer the energy from the sun causes the black top on some roads to get so hot, the tar bubbles on the surface. What kind of energy transfer causes the molecules within the black top to move?
a. Convection
b. Conduction
c. Radiation
d. Potential
3. Within the local weather report, high winds are said to be moving into the area. What type of energy is responsible for the flow of energy which creates wind?
a.
Radiation
b.
Convection
C.
Conduction
d.
Potential
4. Radiation is energy which is transferred through
a. Waves
b. Convection
c. Conduction
d. movement
5. Pam places a test tube containing water over a Bunsen burner and lights it. On another sheet of paper, describe the heating process of the contents of the test tube. Within your answer be sure to:
• Identify each phase of thermodynamics, including; conduction and convection
• Describe the movement of the water molecules
Answers
1) The correct answer is c. Radiation. The heat being let off from the bulb is in the form of thermal energy, which is transferred through electromagnetic waves, or radiation.
2) The correct answer is b. Conduction. The energy from the sun is transferred to the black top through radiation, but the heat causes the molecules within the black top to move through conduction, which is the transfer of heat through collisions between molecules.
3) The correct answer is b. Convection. Wind is created by the movement of air masses, which is driven by convection, the transfer of heat through the movement of fluids (in this case, air).
4) The correct answer is a. Waves. Radiation is the transfer of energy through electromagnetic waves, such as visible light, infrared radiation, and ultraviolet radiation.
5) As the Bunsen burner heats the test tube, the water molecules within the test tube begin to move faster and collide with one another, causing the temperature of the water to increase. This is an example of conduction, the transfer of heat through collisions between molecules. As the water near the bottom of the test tube is heated, it becomes less dense and begins to rise, while cooler water from the top of the test tube sinks down to take its place. This is an example of convection, the transfer of heat through the movement of fluids.
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Describe the Real world examples of newtons third law that were intended in applications of newtons law
Answers
Answer:
The recoil force of a bazooka (reaction) + the accelerating force of a missileWhen walking, the foot pushes down and back (action) + the floor pushes up and forwardWhen a rocket is taking off, the combustion of the fuels (an action) creates a direct and opposite reaction which is the thrust of the rocket upwards.Explanation:
Newton's third law states that for every action (force) in nature there is an equal and opposite reaction. Simply put, forces act in approximately equal and opposite pairs (Action and Reaction).
This law is one of the reasons why the foundation of a building must be built in such as way that is exerting equal and opposite pressure against the building which it is carrying. When the forces are equal, the balance of forces are said to be in equilibrium.
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Which function of parenting was fulfilled by God in Joseph's life in Egypt? Select two answers.
Answers
A substantial grain stockpile that would save Egypt and many other people from an impending famine was delivered to Joseph. This was the main goal of God's plan for Joseph's life.
God selected Mary to have the great honour of bearing His Son Jesus, and He selected Joseph to have the honors of bearing Him as His adoptive father.
Jesus didn't need to have a biological father. Without Joseph's support, Mary could have raised him.
1. God would subsequently use Joseph to enable his father's entire family to travel from Canaan to Egypt, thus saving the entire family. By making this decision, the Hebrew people would flourish and increase in size to become a powerful nation. All of this occurred as a result of God's divine design and purpose for Joseph's life.
2. Joseph flourished under the guidance of the LORD while residing at his Egyptian master's home. Joseph gained favour with him and was appointed as his assistant. Potiphar gave him control over his household and gave him full custody of everything he had.
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Answer:
Providing Food
Providing Shelter
5. You are asked to catalogue several species by their life
strategies. What criteria would you use to determine the
predominant life strategy of each species?
Answers
Criteria that would use to determine the predominant life strategy of each species will be examining each species' life span, sexual maturity age, and the number of offspring produced throughout a reproductive cycle.
The fundamental unit of biodiversity, a species also serves as the taxonomic rank and classification of an organism. A species is frequently described as the biggest group of organisms in which any two individuals of the right sexes or mating types can successfully reproduce sexually and result in fertile offspring.
The karyotype, DNA sequence, shape, behavior, or ecological niche of a species are other methods to define it. Due to the inability to study fossil reproduction, paleontologists also employ the chronospecies idea.
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12. A primate's ability to hold objects in its hands/feet is an evolutionary development that allowed it to
A. walk upright B. use simple tools C. gather food D.create elaborate social systems
Answers
Answer:
Its B I took the test
Explanation:
The levels of organization in the human body are arranged from least complex to most complex.
Answers
The physical component of the human organism, the human body is made up of extracellular and live cells and is divided into many tissues, organs, and systems.
7 organizational layers exist in the human body.
The tiniest unit of a substance, a molecule retains both its chemical and physical properties.
Organelles:
Organelles are specialized structures found inside cells that perform a range of functions.
Similar to how organs like the heart, liver, stomach, and kidneys maintain an organism's life, organelles perform specific tasks to keep a cell alive.
Cells:
The smallest biological unit capable of supporting life on its own, a cell is the building block of all living entities and the tissues of the body.
The cell is made of a cell membrane, cytoplasm, and nucleus.
Tissues:
A group of cells with similar shapes and functions make up a tissue.
The intracellular matrix is a fluid that resides in between the spaces of cells.
It's possible that some tissues contain a lot of this and others don't.
Organs:
Recognizable body parts that perform specific functions include the heart, lungs, liver, eyes, and stomach.
An organ is made up of several types of tissue and, consequently, various types of cells.
Organ systems:
In biology, an organ system is a collection of organs that work together to perform one or more activities.
Every organ in a plant or animal's body serves a particular function and is made of distinct tissues.
The human body is comprised of a total of 11 organ systems.
These include the neurological system, endocrine system, cardiovascular system, lymphatic system, respiratory system, digestive system, urinary system, and reproductive system (Female and Male).
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Use any resource to define the following vocabulary terms from the unit:
Chemical change
product
chemical reaction
reactant
dissolve
solution
energy
temperature
heat
thermal energy
mixture
Physical change
lol
Answers
a family does on a walk beside a river what would most likely happen to the river if the oceans did not exist
Answers
Answer:
The river would get larger because it would snow and hail more often.
Answer:
The river would get larger because it would snow and hail more often.
Explanation:
how does comparing the skeletons of these animals provide support for the scientific theory of evolution
Answers
Comparing the skeletons of different animals provides compelling evidence that supports the scientific theory of evolution. By examining the anatomical structures and bone arrangements of various species.
Scientists can identify patterns that reflect common ancestry and gradual change over time. One way skeletons provide evidence for evolution is through the presence of homologous structures. Homologous structures are similar in form but may serve different functions in different organisms.
For instance, the pentadactyl limb structure, characterized by five digits, is found in a variety of vertebrates, including humans, bats, whales, and birds. This similarity suggests a common ancestor with a limb structure that has been modified for different purposes.
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what role do ribosomes play in the central dogma of molecular biology?
Answers
Can i please get an in depth easy to follow explanation of mitosis. Which explains what going on with chromatids and chromosomes and everything really. Id really appreciate it as i’m struggling. Please make it a level biology friendly. Also within this image which part is the chromatid/ chromosome. Thanks again
Answers
Answer:
see below for figure exp.
Explanation:
A cell with four chromosomes (found as two pairs) is seen in the image below; the pink and blue chromosomes were inherited from the mother and the father, respectively. Every chromosome that the father supplied has a matched chromosome that came from the mother. A homologous pair is made up of these comparable chromosomes, which are similar in size and structure (also referred to as bivalents). Typically, the DNA sequences of homologous chromosomes do not match perfectly.
Mitosis is a type of cell division that produces daughter cells identical to the parent cells. It occurs in eukaryotic cells and is an important part of the cell cycle process necessary for development, tissue regeneration, and growth.
Before mitosis, the cell needs to prepare for division. This involves the DNA condensing into chromosomes, which is the key step. Chromosomes are made of two identical sister chromatids and these chromatids are made of double-stranded DNA.
Mitosis itself has 4 main phases:
Interphase
Prophase
Metaphase
Anaphase
Telophase
Interphase is the gap between mitosis. The cell grows and copies its genetic material.
Prophase is the first stage of mitosis. During this phase, the chromosomes condense further, making them visible under a microscope. The nuclear envelope around the genetic material also breaks down.
Metaphase is the next stage, during which time the spindle fibers connect to the chromosomes, aligning them in the center of the cell.
Anaphase begins when the chromatids, the two identical strands of the chromosome, are pulled apart and move towards the opposite poles of the cell, into the two groups of daughter cells.
Telophase is the final stage of mitosis and is when the cell starts to reform a nuclear membrane, the chromatids turn back into chromosomes and the genetic material unravels and relaxes back into short strands.
In the picture, the two chromatids of the chromosome that can be seen would be the two lines extending from the middle, which are connected at the end. The thicker middle part of the structure is the chromosome, which is made up of the two chromatids.
In most organisms, ___________ macromolecules play a central role as the energy source. This macromolecule must be transformed in the body to produce the usable energy molecule ______. Interestingly, this energy molecule is a _________ type of macromolecule.
A
carbohydrate, adenosine triphosphate, nucleic acid
B
lipid, atropine tetraphosphate, protein
C
protein, adenosine triphosphate, lipid
D
carbohydrate, atropine triphosphate, protein
Answers
Answer:
A
carbohydrate, adenosine triphosphate, nucleic acid
Explanation:
Is antibiotic resistance a gain in genetic information, or a loss in genetic information?
Answers
Answer: Yes, it indicates that the resistance to antibiotics comes from a loss of genetic information, not a gain in information.
Explanation:
Some scientists found that in each strain of bacteria that had developed resistance to antibiotics the bacteria had dropped from its chromosomes a gene called
k
a
t
G
which codes for the production of two enzymes.
A common running-related inflammatory injury of the extensor muscles and
surrounding tissues of the lower legs is called
O shin splints
O muscle sprain
O myopathy
tendinitis
Answers
Answer:
Shin Splints is the answer to your question
When a patient exhibits a rapid heart rhythm, massaging the rieck renion (where the carotid sinus is located) can reduce heart rate. Explain step by step how applying pressure to the carotid sinus can
Answers
Applying pressure to the carotid sinus can activate the baroreceptor reflex, which helps regulate heart rate and blood pressure.
Here are the step-by-step explanations of how this process works:
Locate the carotid sinus: The carotid sinus is a small, sensitive area located on the side of the neck, just below the angle of the jaw. It can be felt as a pulsating area alongside the carotid artery.Gently apply pressure: Using your fingers, apply gentle pressure to the carotid sinus on one side of the neck. Be cautious not to apply excessive pressure or compress both sides simultaneously, as it can lead to a drop in blood pressure.Activation of baroreceptors: Pressure on the carotid sinus stimulates the baroreceptors, which are specialized nerve endings located in the arterial wall of the carotid sinus. These baroreceptors detect changes in blood pressure.Transmission of nerve signals: When the baroreceptors are stimulated, they send nerve signals to the brain, specifically to the vasomotor center in the medulla oblongata.Decreased sympathetic outflow: The vasomotor center in the brain responds to the signals from the baroreceptors by reducing sympathetic nerve outflow. The sympathetic nervous system is responsible for the "fight-or-flight" response and can increase heart rate and blood pressure.Increased parasympathetic activity: As sympathetic outflow decreases, parasympathetic activity increases. The parasympathetic nervous system is responsible for promoting rest and relaxation and can slow down heart rate.Reduced heart rate: The increased parasympathetic activity leads to a decrease in heart rate, helping to normalize the rapid heart rhythm.To know more about baroreceptor reflex
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Which statement best describes the function of the human body system
Answers
Answer:
the human body consists of several body systems including integumentary system, skeletal system, muscular system, lymphatic system, respiratory system, digestive system, nervous system, endocrine system, cardiovascular system, urinary system, and reproductive system and the skelital system (please specify which one)
Explanation:
Answer:
Body System Primary Function
Cardiovascular/Circulatory Blood circulation
Digestive Processing food
Endocrine Hormone production
Urinary Waste elimination
As the altitude increases within Earths atmosphere, what happens to air pressure?
Answers
Answer:
As the altitude increases within Earths atmosphere, the air pressure increases
What can you determine from the principles of cross-cutting relationships?
A. Two different types of sediment will not cut across each other.
B. Layers that cut across the most other features are youngest.
C. The layers of sediment on the bottom are the oldest.
O D. In a given region, all layers of sediment form at the same time.
SUBMIT
Answers
Answer:
B. Layers that cut across the most other features are youngest.
Explanation:
Using the principles of cross-cutting relationships, you can determine the relative age of rocks found in the ground. The idea behind it is that the geologic feature which cuts another is the younger of the two features, and it had been around for 400 years. It's not very precise but it is good for determining relative age.