Nos humanos vestimos roupas e arumamos os cabelos nos temos aparelhos eletrônicos nos temos casas modernas
Explanation:
Bons estudos ; )
explain human digestive system
Answer:
The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion.
Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body.
montgomery, j. c. dogfish horizontal canal system: responses of primary afferent, vestibular and cerebellar neurons to rotational stimulation. neuroscience 5, 1761–1769 (1980).
The semicircular canals in the inner ear of dogfish sharks, also known as elasmobranchs, are referred to as the "dogfish horizontal canal system." The vestibular system, which is in charge of sensing head motions and disseminating data about balance and spatial orientation, includes these canals.
Rotational stimulus, such as spinning or rotating, causes certain types of vestibular system neurons to react in a particular way: The fundamental sensory receptors of the vestibular system are known as primary afferent neurons, and they are found in the vestibular ganglia.
Rotational stimulation causes fluid in the semicircular canals to move mechanically, which is what they can detect. These mechanical signals are transformed into electrical impulses by the primary afferent neurons, which then send them to the brainstem and cerebellum.
here is the complete question: Dogfish horizontal canal system: Responses of primary afferent, vestibular and cerebellar neurons to rotational stimulation.
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Which of the following is a term use to describe a mound, hill of ridge of wind-blown sand?
A.peak
B.hill
C.contour
D.dune
define the terms diffusion, passive transport, active transport, and osmosis. in each of your definitions, describe the role of a concentration gradient.
Both osmosis and diffusion are passive transport processes, meaning that no additional energy is needed for them to take place.
Particles migrate from a region of higher concentration to one of lower concentration in both diffusion and osmosis. When a region has a higher particle concentration than another, this is known as a concentration gradient.
A concentration gradient will cause particles in "passive transport" to diffuse down it from higher concentration to lower concentration until they are evenly spaced. Diffusion is the process by which chemicals travel passively from a region of higher concentration to a region of lower concentration. A concentration gradient is a difference in the concentration of one substance throughout a physical region.
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Answer:
Girl what is this?
Do you think diabetes is something the average person should take steps to prevent ? Why or why not?
Answer:
Yes, and no. Unfortunately there is no cure or reversing the effect of type 1 diabetes. For type 2 diabetes which is obtained through various unhealthy patterns with enough treatment the effect of type 2 diabetes can be reversed.
Explanation:
Which of the following terms refers to the groupings of plants which consistently produce plants of the same types?
O Species
O Family
O Genus
O Variety
Answer:
species
Explanation:
I took the quiz
Humans' use of rocks and minerals as building materials is an example of which interaction?
Answer: An interaction between the biosphere and the geosphere
Answer
the 3d question, An interaction between the biosphere and the geosphere
Explanation:
Chloride ions enter the postsynaptic cell through open channels, and ________ the postsynaptic membrane.
Depolarize. because they are more concentrated outside of the cell and want to diffuse inwards.
In general, neurons use a combination of electrical and chemical signals to send and receive information. When a presynaptic neuron fires, it releases a chemical signal called a neurotransmitter into the synaptic cleft between itself and the postsynaptic neuron, which triggers a series of events that ultimately cause the postsynaptic neuron to either fire its own action potential or not.Neurotransmitters that trigger excitatory postsynaptic potentials (EPSPs) cause the postsynaptic neuron to depolarize, bringing it closer to the threshold for firing its own action potential.
This is because the neurotransmitter molecules bind to and open ion channels on the postsynaptic membrane, allowing positive ions like sodium (Na+) and calcium (Ca2+) to rush into the cell, which makes its internal voltage more positive (i.e. depolarizes it). Chloride ions, on the other hand, are negatively charged and so they would not cause depolarization. Instead, they tend to cause hyperpolarization (making the cell more negative inside) .
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1. form and structure of an organism or any of its parts morphology
2. the splitting of a lineage into separate and distinct species speciation
3. group of related organisms that share features and characteristics species
4. small or underdeveloped vestigial
Answer:
1) morphology
2) speciation
3) species
4) vestigal
Explanation:
Morphology is the study of forms or the physical appearance of organisms.
Speciation is the splitting of lineage into distinct species capable of interbreeding and producing fertile offspring.
Species is a group of organisms that are genetically related and share features and characteristics. They are capable of interbreeding and produce live offsprings.
Vestigal organs are organs that have lost their function over time, they are usually small and underdeveloped. Example is the human tail bone.
How can we unlock the 90% of our brain that we never use?
Answer:
Healthy humans use all of their brain. There is no part of the brain that goes unused. Certain tasks work certain parts of the brain more, but they all play important roles, as explained by neurobiologist Dr. Eric Chudler. Brain maps, as found in modern anatomy books, indicate that each part of the brain has a specific function essential to a healthy human. If there were a part of your brain that really went unused, then you could safely damage that part in an accident with no ill effects. But decades of medical records show that damage to any part of the brain has severe effects. If 90% of the brain were not used, then 90% of the brain tumors would cause no problem. Imagine brain doctors telling 90% of their cancer patients, "I have good news and bad news. Bad news: you have a brain tumor. Good news: it's in the part of the brain that you will never use." The thought is absurd.
If the 10% myth is instead supposed to mean that humans only use 10% of their brain in a given moment, it is still false. The brain is not a collection of independent machines that are turned on or off depending on whether you are reading or singing. Rather, brain functions emerge as a complex interplay of many parts of the brain. Physiologically, nerves are like muscles in that they degenerate when unused. If 90% of the brain went completely unused, then that portion would degenerate significantly. But brain scans of a healthy person reveals all parts to be intact. This myth was propagated by authors trying to sell books on mystical ways to unlock your hidden potential, claiming that unused brain power could be tapped using the methods in their books. The greatest danger to your brain is not the possibility that a large portion is going on unused. Rather, the greatest dangers are stroke, Alzheimer's disease, and tumors. The best ways to protect yourself from such risks include eating healthy, exercising, and getting enough rest. Do you really want to use your brain to its full potential? Then put down your unlocking-hidden-brain-potential book and go on a run.
Explanation:
Healthy humans use all of their brain. There is no part of the brain that goes unused. Certain tasks work certain parts of the brain more, but they all play important roles, as explained by neurobiologist Dr. Eric Chudler. Brain maps, as found in modern anatomy books, indicate that each part of the brain has a specific function essential to a healthy human. If there were a part of your brain that really went unused, then you could safely damage that part in an accident with no ill effects. But decades of medical records show that damage to any part of the brain has severe effects. If 90% of the brain were not used, then 90% of the brain tumors would cause no problem. Imagine brain doctors telling 90% of their cancer patients, "I have good news and bad news. Bad news: you have a brain tumor. Good news: it's in the part of the brain that you will never use." The thought is absurd.
If the 10% myth is instead supposed to mean that humans only use 10% of their brain in a given moment, it is still false. The brain is not a collection of independent machines that are turned on or off depending on whether you are reading or singing. Rather, brain functions emerge as a complex interplay of many parts of the brain. Physiologically, nerves are like muscles in that they degenerate when unused. If 90% of the brain went completely unused, then that portion would degenerate significantly. But brain scans of a healthy person reveals all parts to be intact. This myth was propagated by authors trying to sell books on mystical ways to unlock your hidden potential, claiming that unused brain power could be tapped using the methods in their books. The greatest danger to your brain is not the possibility that a large portion is going on unused. Rather, the greatest dangers are stroke, Alzheimer's disease, and tumors. The best ways to protect yourself from such risks include eating healthy, exercising, and getting enough rest. Do you really want to use your brain to its full potential? Then put down your unlocking-hidden-brain-potential book and go on a run.
Which of the graphs shown best represents the relationship between the intensity of directional selection and the genetic variation present within a population
The relationship between the intensity of directional selection and the genetic variation within a population can be best represented by graph B. In directional selection, the allele frequencies in a population shift towards one extreme of a trait, resulting in a decrease in genetic variation.
Graph B shows a decrease in genetic variation as the intensity of directional selection increases. The x-axis represents the intensity of directional selection, while the y-axis represents the genetic variation. As the intensity of directional selection increases, the genetic variation decreases, resulting in a narrower range of traits within the population.
This can be explained by considering an example of directional selection in a population of birds. Suppose there is a population of birds with different beak sizes, and there is a strong selective pressure for larger beak sizes due to changes in their food source. As the intensity of selection for larger beaks increases, birds with smaller beaks are less likely to survive and reproduce, leading to a decrease in genetic variation for beak size within the population.
In conclusion, graph B best represents the relationship between the intensity of directional selection and the genetic variation present within a population. As the intensity of selection increases, the genetic variation decreases. It is important to note that this is just one example, and other scenarios could result in different relationships between the intensity of directional selection and genetic variation.
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which gas is not abundant in earth's atmosphere?
a. oxygen
b. hydrogen
c. nitrogen
d. argon
Answer:
Its letter D
Explanation:
Answer:
argon is not adudabt in earth atmosphere
Which is generally true of all terrestrial biomes?
Answer: they're based on land
Explanation:
Plant selection is important for a rain garden. Which of the following best describes the types of plants that would be most effective to use in the rain garden in this experimental design to reduce the impact of urban runoff
Plants that are native to the local area and are well-suited to the soil and climate would be most effective to use in a rain garden to reduce the impact of urban runoff.
These plants have deep root systems that help to absorb and filter water, reducing the amount of runoff that enters local waterways. They also help to reduce erosion and improve water quality. Additionally, plants that are drought-tolerant and able to withstand periods of standing water would be beneficial, as rain gardens can hold water for extended periods. It is important to note that the choice of plants will depend on the local conditions and the experimental design of the rain garden, for example, the pH of the soil, the amount of sun exposure, and the size and location of the rain garden. An expert in the field of horticulture or hydrology would be best suited to make recommendations for plants that would be most effective in a given location.
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Two cubic centimeters of gold has a density that is _____ as one cubic centimeter of gold.
1. Four times as great
2. Twice as great
3. Exactly the same
The density of the two cubic centimeters of gold and one cubic centimeter of gold is just the same.
What is density?The term density has to do with the ratio of the mass to the volume of an object. Let us note that the density of the object does not change under whatever circumstance. This is why the density of the object is one of the characteristics that we can be able to use to obtain the the identity of the substance that is under study,
Having said that, we can see that; Two cubic centimeters of gold has a density that is exactly the same as one cubic centimeter of gold.
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State one similarity and one difference between parasitic and predatory modes of feeding
Answer:
One similarity between parasitic and predatory modes of feeding is that both involve the ingestion of other organisms for nutrition. In both cases, the organisms that do the feeding (the parasites or predators) obtain their food from other organisms (the host or prey), which they consume and use to nourish themselves.
One difference between parasitic and predatory modes of feeding is the relationship between the predator and its prey. In predatory feeding, the predator and its prey are typically separate and distinct organisms, and the predator actively hunts and kills its prey for food. In parasitic feeding, the parasite and its host are typically closely associated, and the parasite typically lives on or inside the host, feeding off of its nutrients or tissues. This relationship between the parasite and its host is often harmful to the host, while the relationship between the predator and its prey is typically not harmful (as long as the predator is not over-consuming its prey).
What are the different types of vitamins needed by our body?
Answer:
The 13 essential vitamins your body needs are vitamins.
Explanation:
A, C, D, E, K and the B vitamins: thiamine (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), pyroxidine (B6), biotin (B7), folate (B9) and cobalamin (B12). The four fat-soluble vitamins—A, D, E, and K—are stored in the body's fatty tissues.
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Answer:
acdebk
b1 ribovlavin
b2 niacin
b3 panthotenc
b5 pyroxidine
b6 biotine
b7 folate
b9 cobalamin
ADEK are stored in bodies fatt tissue and they're four fat soubl vitamins
What is a landslide?
Movement of earth materials up a slope.
Movement of water up a slope.
Movement of water down a slope.
Movement of earth materials down a slope. ill mark brainlyest
Two scientists studied patterns of evolution in the fossil record. Many species they analyzed showed periods of slow changes interrupted by a period of rapid change.
This pattern of periods of slow change interrupted by periods of rapid change with few, if any transitional fossils, best describes the theory of —
According to the hypothesis of punctuated equilibrium, evolutionary change is defined by brief bursts of fast evolution followed by more protracted pauses during which nothing changes.
Which definition applies to a transitional fossil?Any fossilised remains of a living form that exhibit characteristics shared by both its ancestor group and its descended descendant group are considered transitional fossils. This is especially essential where the descendent group is sharply distinct by physical anatomy and style of living from of the ancestral group.
How do transitional forms back up evolution theory?The remains of the an organism that existed between a known ancestor of the a species as well as the current species are known as transitional fossils. Transitional fossils are said to depict intermediate forms of the a species, which changed or accumulated adaptations slowly, making them evidence for evolution.
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Explain why every cell that is produced from the genetically modified bacterium
will be able to produce insulin.
Answer:
Recombinant DNA is technology scientists developed that made it possible to insert a human gene into the genetic material of a common bacterium. This “recombinant” micro-organism could now produce the protein encoded by the human gene. Scientists build the human insulin gene in the laboratory. Then they remove a loop of bacterial DNA known as a plasmid and insert the human insulin gene into the plasmid. Researchers return the plasmid to the bacteria and put the “recombinant” bacteria in large fermentation tanks. There, the recombinant bacteria use the gene to begin producing human insulin. Scientists harvest the insulin from the bacteria and purify the substance for use as a medicine for people.
Explanation:
Are there organisms that can be abiotic and biotic? Explain
This part of the nervous system regulates involuntary actions such as
heart function, blood pressure, breathing, digestion.
The autonomic nervous system (ANS) is in charge of controlling involuntary processes such as digestion, respiration, blood pressure, and heartbeat. The sympathetic and parasympathetic nervous systems make up its two divisions.
Through the "fight or flight" response, the sympathetic nervous system prepares the body for emergency situations. It speeds up the heartbeat, constricts blood vessels, widens the airways and releases stress hormones. These responses improve physical ability and preparedness for potential threats.
In contrast, the parasympathetic nervous system encourages relaxation and energy conservation through the "rest and digest" response. It promotes digestion, lowers heart rate, and promotes restorative and recovery processes.
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Draw a food web for Wytham Woods
using the information on feeding relationships
in Table 3. 3
A food web for Wytham Woods can be drawn using the information on feeding relationships in Table 3.3. The primary producers are the trees and plants, which are eaten by primary consumers such as insects and small mammals like voles and shrews.
These primary consumers are then eaten by secondary consumers such as owls, kestrels, and weasels. Tertiary consumers like foxes and badgers feed on the secondary consumers. Decomposers such as fungi and bacteria break down the organic matter of dead organisms and recycle the nutrients back into the ecosystem. This food web shows the interconnectedness of the organisms in Wytham Woods and highlights the importance of maintaining a healthy and diverse ecosystem for the survival of all species.
Overall, the food web in Wytham Woods is a complex network of feeding relationships that is essential for the functioning and balance of the ecosystem.
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Consider two solutions of different sodium concentrations separated by a selectively permeable membrane. The net movement of water across the membrane will be from the area of ______ sodium concentration to the area of ______ sodium concentration.
Answer:
Consider two solutions of different sodium concentrations separated by a selectively permeable membrane. The net movement of water across the membrane will be from the area of high sodium concentration to the area of low sodium concentration
Explanation:
In this process, only water molecules can pass through the selectively permeable membrane. As the solution has different concentrations of solute, the water molecules will move from the more concentrated solution to the less concentrated solution. The process is called osmosis and is completed when both solutions have the same concentration.
which of these is a distinguishing characteristic of a savanna
Answer:
answer will be explained
Explanation:
Grasses and trees - The savanna is a rolling grassland with scattered trees and shrubs. Rainy and dry seasons - Savannas have two distinct seasons in regards to precipitation.
explain how wetlands are an example of biodiversity.
Answer:
Explanation:
Wetlands have been called “biological super systems” because they produce great volumes of food that support a remarkable level of biodiversity. In terms of number and variety of species supported, they are as rich as rainforests and coral reefs
what's differences anaerobic vs aerobic
Answer:
Anaerobic means no oxygen
Aerobic means oxygen
Explanation:
what is carrying capacity
Answer:
carrying capacity is how much population an environment can hold without its resources being used up/ when a Population Hits Its Limit. an example would be The Carrying Capacity of North American Deer. the Carrying Capacity of Grazing Cattle.
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Compare between red blood cells and white blood cells
And write both
Answer:
The main difference between red blood cells and white blood cells is their function; red blood transport oxygen throughout the body while white blood cells are involved in the defense of the animals, destroying pathogens which invade the body cells.
Explanation: