8. Which of the following is an example of a homeostatic reinforcing feedback loop? Please HIGHLIGHT your selection and explain below.

Andrew was mountain biking and fell and wounded his knee. When tissue is torn or injured, a chemical is released. This chemical causes platelets in the blood to activate. Once these platelets have activated, they release a chemical which signals more platelets to activate, until the wound is clotted.
While exercising, Julia's heart rate and breathing increase to balance the increased oxygen use by her muscle cells.
On a hot day, Martin doesn't drink very much water. His kidneys respond by removing very little water from his blood, resulting in yellow, concentrated urine.
After eating a candy bar, April's pancreas secretes insulin, causing excess blood sugar to be removed.

Answer:

Option (C)

Explanation:

Aquatic species have mostly gills to breathe underwater, they mainly feed on phytoplankton, they cannot survive outside of water, among other characteristics, and on the other hand terrestrial species live mostly on earth, their bodies are adapted to be able to crawl, walk, run, climb or jump, depending on the ecosystem in which they live.

Answer:

Glucose is a compound because it is made from more than one element.

Sample 1 likely came from a beach due to its dominance of sand, moderate sorting, and absence of silt and clay. Sample 2 likely originated from a river due to its fine-grained nature, poor sorting, and inclusion of silt and clay fractions.

Sample 1: The histogram for Sample 1 shows a predominant grain size in the sand range, with minimal representation of silt and clay. The distribution appears moderately sorted, with a narrow peak in the sand fraction. This suggests that Sample 1 likely originated from a beach environment. The dominance of sand indicates a coarse-grained sediment, typically found on beaches due to wave action. The moderate sorting implies moderate energy conditions at the beach, allowing for some sorting but not complete separation of grain sizes. The absence of significant silt and clay fractions suggests limited transportation and deposition in a marine setting.

Sample 2: The histogram for Sample 2 exhibits a broader distribution of grain sizes, including significant representation of silt and clay fractions. This indicates a fine-grained sediment. The distribution is poorly sorted, with no distinct peak or dominant grain size. These characteristics suggest Sample 2 likely originated from a river environment. Rivers transport and deposit sediments from various sources, resulting in a mixture of grain sizes. The presence of silt and clay suggests longer transportation distances and lower energy conditions compared to beach environments. Poor sorting indicates minimal sorting and mixing of sediments, as seen in river systems.

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Answer:

i think its

Pituitary Gland<

Explanation:

The endocrine system is the collection of glands that produce hormones that regulate metabolism, growth and development, tissue function, sexual function, reproduction, sleep, and mood, among other things.

Answer:

C -  Mohs Hardness, This is correct because the Mohs hardness scale is a convenient way to identify minerals.

Explanation:

Caroline has a collection of minerals and wants to identify each mineral. Mohs Hardness This is correct because the Mohs hardness scale is a convenient way to identify minerals.  

A mineral's hardness measures its relative scratch resistance, measured by scratching the mineral against another substance of known hardness on the Mohs scale of hardness.

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Correct Option C -  HARDNESS

The correct answer is d. South America did not contain an agricultural hearth.

The Andean region of South America is known for the development of advanced agricultural practices, including terrace farming, irrigation systems, and the cultivation of crops such as potatoes, quinoa, and maize. These practices were developed by indigenous peoples over thousands of years and were a key factor in the growth of complex civilizations such as the Inca Empire. The Amazon basin is also considered an important agriculture hearth, as it was home to a range of crops, including manioc, peanuts, and various fruits and vegetables. Indigenous peoples in the region developed sophisticated agroforestry systems, which involved cultivating crops in combination with other trees and plants in the rainforest ecosystem.

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Answer: The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. ... The nucleus is only one of many membrane-bound organelles in eukaryotes. Prokaryotes, on the other hand, have no membrane-bound organelles

Explanation:

Answer:

Explanation:

electrical systems in satellites will fail

The variations in forelimbs of the skeletons of mammalian forelimbs are most likely caused by adaptive radiation, genetic drift, mutation, and natural selection.

Explanation:Adaptive radiation Adaptive radiation occurs when a species colonizes a new environment with an array of ecological niches and evolves to exploit these resources. Adaptive radiation can result in a wide variety of organisms being created that are adapted to specific ecological niches, and this can occur in a relatively short amount of time.Genetic drift Genetic drift refers to the random variations in gene frequencies over generations.

It has the potential to cause significant changes in the genetic make-up of a population in a relatively short amount of time, but it is more commonly seen in small populations. Mutation Mutations are random changes in the genetic material of an organism, usually caused by errors in DNA replication. Mutations may be caused by environmental factors such as radiation, or they may be random. Natural selection Natural selection is a mechanism of evolution that occurs when individuals with beneficial adaptations are more likely to survive and reproduce than individuals without these adaptations.

The variations in forelimbs of the skeletons of mammalian forelimbs are most likely caused by adaptive radiation, genetic drift, mutation, and natural selection.

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Answer:

increasing water stress

Explanation:

The foliage on roadside vegetation is damaged when salted water sprays up from the pavement by passing vehicles. Salt-laden water can also percolate down through the soil profile, coming into contact with soil particles, soil microbes, and plant roots. Salt injures vegetation by: Increasing water stress

During depolarization, membrane potential becomes more positive, which triggers an action potential.

Depolarization is a process in which the membrane potential of a neuron becomes less negative or more positive, making the inside of the neuron more positive than the outside. This occurs when positively charged ions, such as sodium (Na+) ions, flow into the neuron, which causes the membrane potential to become more positive. If the depolarization reaches a certain threshold, it triggers an action potential, which is a rapid and temporary reversal of the membrane potential. The action potential allows the neuron to communicate with other neurons or muscle cells.

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Answer: the screaming and running

Explanation:

Fermentation can only take place in an anaerobic environment because yeast is relatively anaerobic. When there is oxygen present, yeast engages in aerobic metabolism.

Yeast fermentation: When oxygen is present, yeast engages in aerobic respiration, converting carbohydrates (a source of sugar) into carbon dioxide and water. In the absence of oxygen, yeast ferments carbohydrates and produces carbon dioxide.

Through the process of electron transfer and oxygen, yeast mitochondria regenerate NAD+. Alcohol and CO2 are created during the fermentation process, which essentially only takes place in the absence of oxygen (resulting in carbonation). The roommate left the bucket open to the air, which provided the yeast with an ongoing supply of oxygen.

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Hemodialysis is the process of artificially filtering waste products from the patient's blood.

A person whose kidneys are not functioning correctly undergoes hemodialysis, also known as hemodialysis or simply dialysis, to filter their blood. When the kidneys are in a condition of renal failure, this type of dialysis removes wastes like creatinine and urea as well as free water from the blood extracorporeally. One of the three renal replacement therapies is hemodialysis (the other two being kidney transplant and peritoneal dialysis). Apheresis is a different technique for extracorporeal separation of blood components like plasma or cells.

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At sea level, the normal partial pressure of carbon dioxide (pCO2) in pulmonary arteries is typically around 40 mmHg (millimeters of mercury).

Pulmonary arteries are an essential component of the circulatory system responsible for carrying deoxygenated blood from the heart to the lungs for oxygenation. They are a pair of blood vessels that originate from the right ventricle of the heart. The main function of the pulmonary arteries is to transport blood to the lungs, where it undergoes oxygenation and gets rid of carbon dioxide.

These arteries have unique structures and characteristics that suit their purpose. They are thinner and have less muscular walls compared to other arteries in the body, allowing them to handle lower pressure. This adaptation enables efficient blood flow through pulmonary circulation. Upon reaching the lungs, the pulmonary arteries divide into smaller vessels called arterioles, which further branch into even tinier capillaries.

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Answer:

(C) organ systems interact to allow the body to live and grow.

Explanation:

Organs depend on each other to carry out a certain function so the other organs can work.

Example- If the lungs of your body fails there will be no supply of oxygen. If there is no supply of oxygen there will not be enough blood for the heart to function.
If there is no oxygen there will be no oxygen or enough blood to flow to the brain.
Without the heart working the will be no blood to pump throughout the body.
Without the brain there will be no control to have the body and its organs to work properly.
Etc.

It is a chain reaction.

Answer:

Characteristics of Fungi. Following are the important characteristics of fungi: Fungi are eukaryotic, non-vascular, non-motile and heterotrophic organisms. They may be unicellular or filamentous. They reproduce by means of spores. Fungi exhibit the phenomenon of alternation of generation.

Answer:

anatomy

Explanation:

fr fr fr fr fr fr.fr.fr fr fr fr fr fr fr f r f r r f r r f r r f d

Answer:

You would be studying:
Polysaccharides

Glucose and other, similar molecules, can be joined together to form polymers called polysaccharides.

Explanation:

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Answer:

B

Explanation:

Polychaetes are segmented worms that inhabit various marine environments, and many species live within the sediments on the ocean floor as part of the infauna community.

These organisms contribute significantly to the biodiversity and overall health of marine ecosystems. Infauna are organisms that live within the substrates of aquatic environments, such as sand, mud, or gravel. They play essential roles in maintaining water quality, nutrient cycling, and providing food sources for other marine life.

As a part of the infauna community, polychaetes have adopted various strategies to survive in their unique habitat, including specialized feeding mechanisms, burrowing abilities, and physical features that facilitate movement through the sediments.

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A practical marine mammal example for the application of molecular taxonomy is the differentiation of subspecies or populations within a species using genetic data.

By analyzing genetic markers such as mitochondrial DNA or microsatellites, researchers can identify unique genetic signatures that correspond to different populations or subspecies. This information can be used to inform management and conservation strategies, such as identifying priority areas for protection or assessing the genetic diversity and connectivity of different populations.

Molecular taxonomy can help resolve taxonomic uncertainties or discrepancies, such as the classification of certain dolphin species, which may be difficult to distinguish based on morphology alone. By combining genetic and morphological data, researchers can develop a more accurate and comprehensive understanding of the diversity and relationships between different marine mammal species and populations.

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It is not a characteristic of gel electrophoresis to use primers to amplify specific DNA sequences. the molecules are forced through the gel's tiny pores by the force of the current during the process.

Primers are not used in gel electrophoresis to amplify specific DNA sequences. Based on their size and charge, this method is used in the laboratory to separate and examine macromolecules like DNA and proteins. The macromolecules are subjected to an electric field when they are placed in a gel matrix during gel electrophoresis. Using methods like ethidium bromide staining, which binds to the DNA by intercalating between base pairs, the molecules can be separated and observed as they move through the gel in accordance with their size and charge.

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Answer:

a wide variation of traits

Subsistence use can be helpful to the ecosystem when practiced in a sustainable manner. It relies on traditional ecological knowledge, helps maintain biodiversity, and promotes conservation practices.

Subsistence use often relies on traditional ecological knowledge, which is based on a deep understanding of the local ecosystem and its dynamics. This knowledge is often passed down from generation to generation, and it enables communities to use natural resources in a way that maintains the health and productivity of the ecosystem. Secondly, subsistence use can help maintain the biodiversity of an ecosystem. By relying on a variety of different natural resources, subsistence communities can help prevent the overexploitation of any one species or resource.

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Answer:

As the Earth warms overall, insects are shifting toward the poles to colonize areas that are warmer than before in the summer months. Yet many of these insects lack the ability to survive the colder winters found in these regions. ... As the days stay warmer later into the fall, insects' bodies get confused.

Explanation:

Answer:

Forests capture carbon from the atmosphere in the trees and soils. ... When forests burn, vast amounts of the stored carbon is emitted.

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Answer:

Cellular Respiration and Photosynthesis are almost opposite processes because photosynthesis removes carbon dioxide from the atmosphere while cellular respiration puts back carbon dioxide. Cellular respiration uses oxygen and has it's waste product of carbon dioxide (CO2).

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Answer:

this is because during photosynthesis oxygen is released and in cellular respiration oxygen is taken in or inhalation takes place

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