The descending pathway controls sensory functions. begins in the spinal cord and ends in the brain. is only involved with involuntary muscle movements. consists of upper and lower motor neurons. consists of neurons located completely within the spinal cord.
Answers
Upper and lower motor neurons make up the descending pathway. The correct answer consists of upper and lower motor neurons.
The descending pathways that originate from the brainstem and cortex are the source of these modulations of the spinal reflexes, which can be either facilitatory or inhibitory. Intentional development and a few tangible-driven reflex activities are likewise constrained by the plunging pathways.
From the upper motor neurons of cortical structures like the cerebellum and cerebrum, descendent tracts convey motor information to efferent nerves. This information can get to muscles thanks to the descending tracts, which send it to lower motor neurons.
Descending pathways are collections of myelinated nerve fibers that connect the spinal cord and the brain or brainstem, transferring motor information to the muscles of the effector. They can be broken down into two categories: Extrapyramidal and pyramidal tracts, both voluntary and involuntary.
To learn more about neurons here
https://brainly.com/question/31215300
#SPJ4
Related Questions
please helppp asap, have a good rest of your day !
Answers
Answer:
hh × Hh
The results showed that roughly 50% of the mice are brown and roughly 50% of the mice are black. So the genotypes of the mice must be hh and Hh. (punnet squares are in the image attached)
Explanation:
hh - brown
Hh - black
The Threatened Specie Act prohibit trade or product made from threatened or endangered pecie. True
Fale
Answers
The given statement is TRUE. A foundation for the conservation and protection of threatened species and endangered species, as well as their habitats, both domestically and overseas, is provided under the Endangered Species Act of 1973.
In accordance with ESA, critical habitat must be identified and its removal is forbidden. The Endangered Species Act establishes protections for fish, mammals, and plants that are categorized as threatened or endangered. It allows for the addition and deletion of species from the list of threatened and endangered species as well as the creation and implementation of recovery plans. A threatened species is one that "is likely to become an endangered species within the foreseeable future throughout all or a considerable portion of its range," according to the ESA.
Find out more about Endangered Species Act
brainly.com/question/2434932
#SPJ4
Which field studies viruses and bacteria and
how they evolve and respond to their
surroundings?
A. ecology
B. biotechnology
C. evolution of diseases
D. the Tree of Life field
Answers
Answer:
A. Ecology
Explanation:
Ecology is the branch of biology dealing with the relations and interactions between organisms and their environment, including other organisms. Ecologists study the relationships between organisms (and plants/animals) and their environment.
Answer: The answer is evolution of diseases.
Explanation:
4. Which characteristic of life should be the title of this graph?
A. Cellular Basis
B. Growth
C. Homeostasis
D. Reproduction
Answers
The characteristic of life which fit the title of this graph is homeostasis.
Option c is the correct answer choice.
This goes to say that all living organisms share a similar characteristics such as homeostasis
Be that as it may, it is very important that living things maintain a stable internal environment. This homeostasis in particular means the mentainance of a fairly internal environment of an organism
Characteristics of living organismsLiving things be it plants or animals share a number of key characteristics or functions such as:
MovementRespirationHomeostasisReproductionGrowth EvolutionCompetitionExcretionComplete question:
Which characteristic of life should be the title of this graph?
A. Cellular Basis
B. Growth
C. Homeostasis
D. Reproduction
The graph is attached is attached to the question
So therefore, the characteristic of life which fit the title of this graph is homeostasis.
Option c is the correct answer choice.
Learn more about living organisms:
https://brainly.com/question/17259533
#SPJ1
The points on the nitrogen bases (triangles sticking out of the end that bonds with the complementary base) represent the hydrogen bonds. which base pair has more hydrogen bonds, adenine-thymine or guanine-cytosine?
simple answer please
Answers
While DNA employs thymine, RNA uses uracil. The hydrogen bonds are shown by the points on the nitrogen-bases (triangles protruding from the end that bond with the complimentary base).
Adenine and Thymine are joined by two hydrogen bonds, but Guanine and Cytosine are joined by three hydrogen bonds. This explains why regions of DNA that are heavily composed of A-T base pairs make it easier to separate the two strands of the molecule. A pair of bases that can be discovered in DNA or RNA molecules. Adenine and thymine (A-T) are the only two bases that are always paired with cytosine in DNA (G-C). Through two hydrogen bonds, the complimentary elements adenine and thymine can couple.
To learn more about RNA click here https://brainly.com/question/25979866
#SPJ4
(b) A student tested some albumen for the presence of protein using Biuret reagent.
The solution changed colour. It was a positive result.
Describe this colour change.
Answers
Answer:
The colour changes from blue to purple.
Explanation:
Because protein is present in the albumen (egg white.)
What role does cellular respiration play in the atmosphere?
Answers
Answer:
Explanation:
It removes H2O from the atmosphere during acetyl CoA formation. It releases H2O to the atmosphere during the citric acid cycle.
How are sedimentary rocks made. A. Magma or lava is cooled B. Materials are pressed together C. Chemical reactions change minerals. D. Earthquakes causes small pieces to fall
Answers
Answer:
B. Materials are pressed together
Explanation:
sedimentary rocks are made up of pieces (clasts) of pre-existing rocks. Pieces of rock are loosened by weathering, then transported to some basin or depression where sediment is trapped. If the sediment is buried deeply, it becomes compacted and cemented, forming sedimentary rock.
Sedimentary rocks are made up by the pressing down together the materials which are loosened through weathering. Thus, the correct option is B.
What are Sedimentary rocks?Sedimentary rocks are the type of rock which are formed by the accumulation or deposition of mineral particles or organic particles at the Earth's surface, followed by cementation of the particles.
Pieces of rock are loosened by weathering of particles, then these are transported to basin or depression where the sediment is trapped. If the sediment is buried deeply in the basin, it becomes compacted and cemented to form sedimentary rocks. Clastic sedimentary rocks may have particles of rocks ranging in size from microscopic clay to huge boulders.
Therefore, the correct option is B.
Learn more about Sedimentary rocks here:
https://brainly.com/question/10709497
#SPJ5
Predict the results of a mating between a hemophiliac male and a carrier female. Hemophilia is a SEX LINKED, RECESSIVE trait. Fill in the following information.
21. Genotype male _______
22. Genotype female _______
23. Punnett square:
% of total offspring:
24. % normal males ________
25. % hemophiliac males ________
26. % normal females _______
27. % hemophiliac females _______
28. % carriers _______
Answers
21.Genotype male: XhY
22. Genotype female: XHXh
23. Punnett square: XH Xh
24. % normal males: 25% (1 out of 4)
25. % hemophiliac males: 25% (1 out of 4)
26. % normal females: 25% (1 out of 4)
27. % hemophiliac females: 25% (1 out of 4)
28. % carriers: 50% (2 out of 4)
What is a Punnett square?The Punnett square is described as a square diagram that is used to predict the genotypes of a particular cross or breeding experiment.
We can see from the Punnett square the possible genotypes of the offspring.
We see that there are are four possible genotypes:
XHXh (carrier female) XhXh (hemophiliac female), XY (normal male), Y (normal male).The percentages shows the proportion of each genotype that is among the total offspring which is four.
Learn ore about Punnett square at:https://brainly.com/question/3522181
#SPJ1
Which part of the ATP molecule is the
key to the molecule's ability to release
energy?
A. three phosphate group
B. adenine
C. ribose sugar
Answers
Answer:
A. three phosphate group
Explanation:
The key to energy production lies with the phosphate groups. Breaking the phosphate bond is an exothermic reaction. So, when ATP loses one or two phosphate groups, energy is released
Cellular respiration uses one molecule of glucose to produce.
Answers
Answer:
36 ATP
Explanation:
Which question about a soil sample can be answered using the sense of touch?(1 point) What color is the soil? What color is the soil? Is the soil grainy? Is the soil grainy? How quickly does water flow through the soil? How quickly does water flow through the soil? Does the soil smell good or bad? Does the soil smell good or bad?
Answers
The question that can be answered using the sense of touch is : ( B ) is the soil grainy
Sense of touch
The graininess of the soil can be felt by the touch of the hands because it is a physical attribute of the soil that can be seen and touched as well. the color of the soil and how quickly water flows through the soil can only be examined with the physical eyes but cannot be felt.
Hence we can conclude that the question that can be answered using the sense of touch is the soil grainy.
Learn more about Graininess of soil : https://brainly.com/question/25010777
What is your chosen paleontologist researching?
Answers
I don't have a chosen paleontologist to research. However, I can provide you with general information about what paleontologists study.
Paleontologists are scientists who specialize in the study of fossils, ancient life forms, and their evolution over time. They research different aspects of prehistoric life, such as the behavior, anatomy, and ecology of ancient organisms.
Some paleontologists also study the geological and environmental conditions that existed during different periods in Earth's history. Overall, the field of paleontology is vast and varied, and there are many different topics that paleontologists can focus on depending on their interests and expertise.
Learn more about paleontologists at https://brainly.com/question/2257012
#SPJ11
Which of the following describes the perspective of
environmental determinism?
O A contemporary ecological view that human activity is affecting the global
environment toward a negative outcome
O A former scientific viewpoint stating that factors within the physical geography
of a region shape the local population's culture and behaviors
O A twentieth-century idea that human cultures are imprinted on the landscape
in different forms of land use and architecture
O A belief system based on an ideology that humans have dominion over Earth
and its natural resources
Answers
Answer:
The correct answer is "former scientific viewpoint stating that factors within the physical geography of a region shape the local population's culture and behaviors".
Explanation:
The idea of environmental determinism rise during the early part of the twentieth century, when concepts such as "culture" and "society" had not been studied the way they do today. Environmental determinism states that the geographical and physical conditions of a region defines human society, including its economics and cultural features. Nowadays, environmental determinism is considered a simplistic way of studying humans, since it implies that social conditions have no impact on human's development.
1. Embryonic stem cells have the potential to do all of the following except
O differentiate into almost any type of cell in the body
O only able to grow into a similar type of cell
Answers
Answer:
O only able to grow into a similar type of cell
Explanation:
Embryonic stem cells have the capability to create almost any type of cell in the body. Stem cells in general can form almost any type of cell which is why it is sometimes used for therapy. Stem cells divide to create daughter cells. These daughter cells will either be another stem cell or a more specialized cell type (like heart, brain, bone, or blood cell).
Hope this helps!
Imagine water was a gas at atmospheric temperatures;
what problems can you envisage in the natural world?
Answers
If water was a gas at atmospheric temperatures, there would be many problems in the natural world like:
Life would not be possibleThe Earth's climate would be much differentThe Earth's surface would be much differentWhat are the importance of water?First, life would not be possible. Water is essential for life, and if it was a gas, it would be too difficult for organisms to obtain and use. Second, the Earth's climate would be much different. Water vapor is a greenhouse gas, and if it was a gas at atmospheric temperatures, it would trap more heat from the sun, causing the Earth to warm.
This would lead to more extreme weather events, such as heat waves, droughts, and floods. Third, the Earth's surface would be much different. Water is a major component of the Earth's surface, and if it was a gas, it would erode the land and create new landscapes.
Find out more on water here: https://brainly.com/question/1313076
#SPJ1
How does nature make its "natural selection"? (What decides which genes get passed on and which don't?)
Answers
Answer:
The nucleus
Explanation:
The nucleus contains chromosomes that contain the DNA molecules and in these DNA molecules, genes are found that are responsible for the passing of characters from the parents to the children. Hence, nucleus is your answer.
Hope my explanation helps !
Identify FOUR prescription drugs which are commonly abused.
Answers
Answer:
Oxycodone
Prednisone
Acetaminophen
Morphine
Explanation:
Answer:
Barbiturates
Benzodiazepines
Codeine
Morphine
"If a scientist isolates genes for Hepatitus B antigens from a Hepatitus virus, then inserts them into a bacterial plasmid and replicates the bacteria in a fermenter, what product will be collected?"A. Transgenic bacterial plasmidsB. Hepatitus B frusesC. Hepatitus B vaccineD. Hepatitus resistant bacteria
Answers
If a scientist isolates genes for Hepatitus B antigens from a Hepatitus virus, then inserts them into a bacterial plasmid and replicates the bacteria in a fermenter, the product collected will be transgenic bacterial plasmids, inside the bacteria, in order to proove if the transgenic plasmid actually gives the bacteria resistance to the virus, it has to be grown in an infected medium.
The correct answer is option A.
What is used to check the essential nutrients of plants?
a) IDM
b)HPCT
c) Pasteurization
d) Genetic engineering
Answers
Answer:
The correct answer is d) Genetic engineering.
Explanation:
Genetic engineering is a technique used to modify the genetic makeup of organisms, including plants. By manipulating the genes of plants, scientists can enhance or introduce specific traits, including those related to essential nutrients.
This allows researchers to check and potentially improve the essential nutrient content of plants.
To learn more about Genetic engineering:
brainly.com/question/2780091
Part 1: Lipid Metabolism 1. What is the role of Cholesteryl Ester Transfer Protein (CETP)? 2. Would a high activity of CETP increase or decrease our risk for heart disease? Explain your answer. PART 3: Saturated Fats and Health: A reassessment and Proposal for Food Based Recommendations (Astrup et al.) From the lecture and the Astrup article - A randomized controlled trial (RCT) is the best scientific evidence that shows cause and effect. The PREDIMED diet RCT (i.e. the Mediterranean diet) compared to a control diet (low-fat diet), the people assigned to follow the PREDIMED diet consumed an increase in total fat intake by 4.5% (including SFA), yet significant cardiovascular events were significantly reduced (by 30%) compared to the control diet (a low-fat diet). 1. What are the differences between a "low-fat diet" and a "Mediterranean diet" from a nutrient and food perspective?
Answers
Lipid metabolism is the process by which lipids are synthesized and broken down in cells. Cholesteryl Ester Transfer Protein (CETP) is a protein involved in lipid metabolism that transfers cholesteryl esters from high-density lipoprotein (HDL) to very low-density lipoprotein (VLDL) or low-density lipoprotein (LDL).
The role of CETP is to increase the amount of triglycerides in VLDL or LDL particles, which are then transported to other tissues for energy. CETP also reduces the size of HDL particles, which can be problematic for heart health. High activity of CETP can increase the risk of heart disease because it leads to a decrease in HDL cholesterol levels and an increase in LDL cholesterol levels. This can lead to a buildup of plaque in the arteries, which can cause heart attacks and strokes.
A low-fat diet is a diet that restricts the intake of fat to less than 30% of total calories. A Mediterranean diet, on the other hand, is a diet that emphasizes the consumption of whole, plant-based foods, healthy fats, and lean proteins. From a nutrient perspective, a low-fat diet tends to be lower in calories, but may also be lower in essential nutrients like vitamin E, which is found in healthy fats like olive oil. A Mediterranean diet is rich in monounsaturated and polyunsaturated fats, fiber, vitamins, minerals, and antioxidants. From a food perspective, a low-fat diet may include foods like fat-free dairy products, lean meats, and vegetables, while a Mediterranean diet includes foods like olive oil, nuts, seeds, whole grains, legumes, fruits, and vegetables.
To know more about Lipid metabolism visit:
https://brainly.com/question/32512119
#SPJ11
Which of the following is a structure of the lower respiratory tract?
Answers
Answer:
c. Bronchioles
Explanation: is correct. post protected
Name at least three neuromitters and state the roles of these neuronmitters in human body ? Except acetylcholine, (GABA)and domanine. Please help as soon .
Answers
Answer:
Explanation:
The chemical messengers present in the body are known as neurotransmitters. These are the chemicals that the nervous system uses to send and receive information between neurons and muscles. A neurotransmitter can have one of three effects on a neuron:
Excitatory effect, Inhibitory effect, and/or Modulatory effect.
The list of neurotransmitters and their roles are as follows:
Glutamate: This is present in amino acid compounds which are located in the synapses. It functions as an excitatory neurotransmitter, causing neurons to discharge instructions when stimulated in the central nervous system.
Adrenaline: It helps to respond to body's psychological stress and protection mechanism. They are positioned above the kidney and are created by the adrenal glands. They operate throughout the central nervous system and swiftly increase your heart rate and provide oxygen to your muscles.
Serotonin: Serotonin is a crucial brain neurotransmitter that also has a role in the small intestine. In your digestive tract, serotonin increases feelings of contentment after eating and controls your appetite. When you eat anything that doesn't agree with your stomach, serotonin assists your body in getting rid of it.
Your teacher describes an organism that digests its food externally before absorbing it. You also find out that this organism cannot move. Based on what you've learned, this organism is most likely a(n) (1 point) O bacterium for O protist O fungus. O animal.
Answers
According to the context, fungi is an organism that digests its food externally before absorbing it and it cannot move.
What are fungi?They are living beings belonging to the fungi kingdom: molds, yeasts and mushrooms.
These lack mobility and senses, like plants, and they consume available organic matter (heterotrophic nutrition).
Therefore, we can conclude that according to the context, fungi is an organism that digests its food externally before absorbing it and it cannot move.
Learn more about fungi here: https://brainly.com/question/10499247
#SPJ1
A red bloom cell has diameter of 0.008mm. a model of the red blood cell has a diameter of 80mm. What is the scale of the model
Answers
Scale of the model: 1:10,000. To find the scale of the model, we need to compare the size of the model to the actual size of the red blood cell. Given that the diameter of the red blood cell is 0.008mm and the diameter of the model is 80mm, we can calculate the scale by dividing the diameter of the model by the diameter of the actual cell.
Scale = Model diameter / Actual cell diameter
Substituting the given values:
Scale = 80mm / 0.008mm
Simplifying the expression:
Scale = 10,000
Therefore, the scale of the model is 1:10,000.
1. Identify the diameter of the red blood cell: 0.008mm.
2. Identify the diameter of the model: 80mm.
3. Use the formula Scale = Model diameter / Actual cell diameter.
4. Substitute the values into the formula: Scale = 80mm / 0.008mm.
5. Simplify the expression to find the scale: Scale = 10,000.
6. The scale of the model is 1:10,000, indicating that the model is 10,000 times larger than the actual red blood cell.
For more such questions on scale, click on:
https://brainly.com/question/28743660
#SPJ8
A clay plate has a volume of 30.0cubic centimeters and a mass of 59.1grams. Calculate its density.
Answers
The density of the clay plate is 1970 kg m⁻³
the problem we are dealing with is related to density, which is the mass of a unit volume of a material substance. The formula for calculating density is d = M/V, where d is density, M is mass, and V is volume. Since we are provided with the volume of the clay plate which is 30.0cubic centimeters and the mass of the plate which is 59.1grams
so,V= 30 cm⁻³=3x 10-5 m and M= 59.1grams= 0.0591 kg
Therefore, the density of the plate is: M/V
=>d = 1970 kg m⁻³
To know more about density refer to the link https://brainly.com/question/15164682?referrer=searchResults.
#SPJ1
Anyone need some help or something
Answers
Which element has the greatest number of valence electrons
Which of the following can cause a loss in species, a reduction in populations, species extinctions,
and species migrations?
O Abiotic and biotic factors
O Biodiversity
O Ecosystem disruption
O No answer text provided.
Answers
Species extinctions, population declines, species movements, and species losses can all be attributed to biodiversity.
The correct answer is B
How essential is biodiversity, and why?All life on planet Earth, including humans, depends on processes made possible by biodiversity. We cannot have the robust ecosystems that we depend on to give us the air we and the food that consume without a diverse variety of animals, plants, and microorganisms. The natural world itself is also valued by people.
How is biodiversity valued?Environment-related issues are where biodiversity has the most impact. The Earth's natural processes are supported by healthy ecosystems. Even without species that support them, operations like soil re-cycling, water purification, pest management, and others couldn't be carried out. These processes could be severely damaged if they are interrupted.
To know more about biodiversity visit:
https://brainly.com/question/23101752
#SPJ13
Which term describes the study of the distribution of genetic traits and the allelic changes that occur within a population?.
Answers
Population genetics is the branch of biology that investigates allele frequencies in populations and how they alter through time. Macroevolution, which involves significant changes over a long period of time, such as the emergence of new groups or species, is commonly contrasted with microevolution.
Which phrase best represents a shift in the populations' allelic frequencies?Natural selection, genetic drift (chance occurrences that alter allele frequencies), and gene flow are the three mechanisms that might cause allele frequencies to shift (the transfer of alleles between populations).
What is the mechanism by which a population's trait distribution evolves over many generations?Populations of organism go through a process called evolution.
To know more about genetics visit:-
https://brainly.com/question/13049663
#SPJ4
Answer please if possible !
Answers
Answer:
It would be A
Explanation: