Which are examples of steroids? testosterone and trans fats cholesterol and phospholipids cholesterol and vitamin d estrogen and phospholipids description?
Answer:
Option C, cholesterol and vitamin d
Explanation:
Steroids are artificially produced hormone that acts as a natural hormone. These steroids are form of lipids as they are
a) Hydrophobic
b) Insoluble in water
Cholesterol and vitamin D are the most common steroids. Cholesterol is synthesized in the liver and it is precursor to vitamin D and other steroid hormones like estrogen, testosterone, and progesterone.
Thus, option C is correct
An adult client with cystic fibrosis is admitted to an acute care facility with an acute respiratory infection. ordered respiratory treatment includes chest physiotherapy. when should the nurse perform this procedure
Research has demonstrated that neural stem cells have an impaired ability to differentiate into functional neurons when subjected to:
The amount of information that a neuron can receive increases with the number of _____ that the neuron has.
Answer:
Dendrites
Explanation:
Dendrites are thin and branched extensions, capable of conducting stimuli from other cells (or from environment) and directing them to the cell body, as if they were transmission cables of nerve impulses.
Dendrites extend together with axons throughout the body, connecting neuronal cell bodies to each other and to sensory, glandular, and muscle cells.
Thus, the greater the number of dendrites, the greater will be the amout of information that the neuron can receive.
How does alcohol affect academic performance? select all that apply?
Mercury is an element that is toxic to humans in high doses. How can humans reduce their risk of ingesting this element in harmful amounts?
A.) Humans could avoid eating animals at high trophic levels, as their bodies contain more mercury than those at lower trophic levels.
B.) Humans could avoid eating herbivores, such as plant-eating fish, as their bodies contain relatively high amounts of mercury compared with other animals.
C.) Humans could avoid eating animals at all trophic levels, which all have equal risk of containing mercury, while consuming only plants.
D.) Humans could avoid eating plants, as these contain especially high levels of mercury.
Answer: B.) Humans could avoid eating herbivores, such as plant-eating fish, as their bodies contain relatively high amounts of mercury compared with other animals.
Explanation:
The mercury is a metallic poison which is used in chemicals production in the industries. The mercury along with other residues are left in the water bodies where this is consumed by the aquatic animals like herbivorous fishes. These fishes are consumed by human beings they become susceptible to the toxic effects of the mercury. A disease called as minamata is associated with the mercury consumption. It is associated with muscle weakness, numbness, hearing and speech damage.
When your body temperature rises on a hot day, the neural and hormonal mechanisms activate sweating. evaporation of sweat leads to cooling of the body surface. this is an example of ________?
On a hot day, as your body temperature rises, your body uses a process called thermoregulation to cool down. This is achieved by the evaporation of sweat from your skin, which removes thermal energy from your body. The effectiveness of this cooling method can depend on the relative humidity of your environment.
Explanation:The process that lowers your body temperature by sweating in response to increased heat is known as thermoregulation. This is a mechanism coordinated by the nervous system, mainly controlled by the hypothalamus. The procedure begins by promoting sweat production as your blood flow to the skin increases. Once the sweat evaporates from your skin, it takes some thermal energy from your body, resulting in the cooling effect you experience. However, this sweat response varies with humidity as more sweat evaporates in lower humidity environments, providing more cooling to your body.
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When evacuating victims and endangered personnel in a severe emergency in relation to the support zone where should routes be directed?
In a severe emergency, routes for evacuating victims and endangered personnel in relation to the support zone should be directed away from danger.
Explanation:In a severe emergency, when evacuating victims and endangered personnel in relation to the support zone, routes should be directed away from danger. The support zone is designated as a safe area where individuals can seek assistance, medical treatment, or protection. By directing the evacuation routes away from the danger, it ensures the safety and well-being of those in need during the emergency.
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Which of these planes would show the heart, lungs, and liver in the same section?
what is movement in biology for cells
Final answer:
Movement in biology refers to the ways cells move, which includes diffusion, mass flow, and movement as a result of chemical interactions.
Explanation:
Movement in biology refers to the various ways in which cells move. There are three basic ways in which materials are moved in organisms: diffusion, mass flow, and movement as a result of chemical interactions. Diffusion occurs when molecules move randomly due to their thermal energy. Mass flow refers to the movement of fluid materials like gases and liquids from areas of high pressure to low pressure. Lastly, movement as a result of chemical interactions involves forces developed by biological entities, such as motor proteins, which use chemical energy to do physical work.
What type of tissue is specialized to become stretched or distended?
Experimental Design Practice Peat Moss Scenario (HURRY)
Experimental Design Practice Peat Moss Scenario (HURRY)
Norm wanted to know if adding peat moss to sand would affect its ability to hold water. He put 200 mL of pure sand into container A. He put a mixture of 80% sand and 20% peat moss into container B. He put a mixture of 60% sand and 40% peat moss into container C. He put a mixture of 40% sand and 60% peat moss into container D. He added water to each container and measured the amount of water the contents would absorb. He dried the sand and peat moss and repeated the experiment 5 times. He collected the following data
(attached the table)
For each of the above scenarios, answer the following questions:
1. What is the Independent and Dependent variable for each scenario?
The dependent variable is the variable that measured / tested in an experiment. For example, in a study how tutoring impacts test scores, the dependent variable is the participants' test scores, because that is what is being measured. Whereas an independent variable is a variable that stands alone and isn't changed by the other variables that we are trying to measure. For example, someone's age might be an independent variable. Therefore the Independent variable and Dependent variable for each scenario is water and drying and container (the Independent variable), also pure sand, peat moss (Dependent variable)
2. What variables were held Constant for each scenario?
water and drying and container
3. What is the Control group for each scenario?
dried and repeated the experiment 5 times, amount of pure sand and peat moss
4. Write a hypothesis for each scenario.
He put 200 mL of pure sand into container A. => not adding peat moss to sand not would affect its ability to hold water. (containers are not heavy to move)
He put a mixture of 80% sand and 20% peat moss into container B. => adding peat moss to sand would affect its ability to hold water (containers too heavy to move)
He put a mixture of 60% sand and 40% peat moss into container C. => adding peat moss to sand would affect its ability to hold water. (containers little heavy to move)
He put a mixture of 40% sand and 60% peat moss into container D. => adding peat moss to sand would affect its ability to hold water. (containers less heavy to move)
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For lunch, you eat French fries at a new restaurant. Later that day you get the stomach flu and are vomiting all night. The next day, your friend offers you some French fries and you immediate feel nauseous. What component of classical conditioning does feeling nauseous represent?
A. conditioned response
B. conditioned stimulus
C. unconditioned response
D. unconditioned stimulus
Answer:
A. conditioned response
Explanation:
A classical conditioning reflex occurs when an association is established between normal response or normal body function and a new stimulus. In the given example, the physiologically meaningful stimulus is eating French fries at a new restaurant and represents the unconditioned stimulus. French fries offered by friends was conditioned stimulus that replaced the unconditioned stimulus. Vomiting at new restaurant as it occurred in response to unconditioned stimulus was an unconditioned response. However, feeling nauseous in response to conditioned stimulus represents the conditioned response.
A lily plant on a pond is an example of which food chain level? A. primary consumer B. decomposer C. producer D. 3rd tier consumer
Which feature of large biological molecules explains their great diversity? which feature of large biological molecules explains their great diversity? the diversity of elements found in large biological molecules the many classes of large biological molecules the many ways that monomers of each class of biological molecule can be combined into polymers?
The great diversity of large biological molecules is primarily explained by "the many ways that monomers of each class of biological molecule can be combined into polymers." This versatility in combining building blocks like amino acids, nucleotides, and monosaccharides leads to the vast array of biological molecules with distinct structures and functions.
The ability of each class of biological molecule's monomers to join into polymers in a variety of ways is a characteristic of large biological molecules that accounts for their high degree of diversity.
Proteins, lipids, carbohydrates, and nucleic acids are only a few of the many classes or types of macromolecules that make up biological molecules. There are many different monomers (the building blocks) within each of these classes that can be put together in countless ways to create polymers (bigger, more complicated molecules). Because of this structural adaptability and the many potential arrangements of monomers, biological molecules and their functions are incredibly diverse.
In the case of proteins, for instance, there are 20 distinct amino acids that can be organized in different ways to produce a huge variety of protein structures with various functions. Similar to this, the genetic information of an organism can be encoded using any combination of four nucleotide bases in nucleic acids like DNA.
The various types of large biological molecules are merely categories that aid in their classification; the diversity of the elements present in them does not serve as the main explanation for their diversity. The plethora of biological molecules seen in living beings are created by the organization and fusion of monomers into polymers.
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Cross-bedding consists of many preserved ________ resulting from moving sand dunes.
Cross-bedding refers to the preserved layers of sediment that form at an angle to the horizontal bedding planes due to movement of sand dunes. These structures are visible in sandstone formations and offer insights into past environmental conditions.
Explanation:Cross-bedding consists of many preserved sedimentary structures resulting from moving sand dunes. These structures form when wind or water currents deposit layers of sediment, like sand, at an angle to the horizontal bedding planes. Over time, as sand dunes migrate, these angled deposits become stacked on one another, forming the characteristic cross-bedding pattern. This stratigraphical phenomenon is often visible in sandstone formations and can provide valuable insights into past environmental conditions, including the direction of prevailing wind or water currents at the time the sediments were laid down.
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To help you steady a rifle when you're ready to shoot draw a deep breath and
Which structure in a cell coordinates the production of microtubules used in meiosis?
The client is experiencing severe sepsis. what assessment finding would the nurse expect?
This is the general name for the underlying workings of a city or community, such as its electrical grid, sewer and road systems, etc.
Answer:
Infrastructure
Explanation:
it is the underlying workings of a city, community and etc.
Because the cells in the body are in a state of starvation, how does the body compensate to maintain homeostasis
When did the ordovician period end?
The bacteria in some foods are sterilized by placing the food near a source of ionizing radiation does that mean that the food becomes radioactive?
Answer:
No, the radiation energy use to sterilize the food is very low that cannot radioactivate the food.
Explanation:
The radiation that use to sterilize the food is mainly Ultraviolet radiation, it alters the DNA structure of microbes and microbes will die.
To radioactivate the food we need to disturb the nucleus of atoms which needs very high energy radiation like gamma radiation.
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Food irradiation using ionizing radiation such as cobalt-60 or cesium-137 kills harmful bacteria and extends shelf life without making the food itself radioactive. This process is endorsed by international health organizations and poses no measurable short-term risks to consumers.
Explanation:When food is irradiated by sources like cobalt-60 or cesium-137, it is exposed to ionizing radiation to kill harmful bacteria and extend shelf life. However, this does not mean the food becomes radioactive. The process involves ionization that creates free radicals and radiolytic products which disrupt bacterial cell membranes and prevent replication. Though concerns have been raised about the safety of radiolytic products, there have been no measurable short-term negative effects on consumers.
It is important to understand that the irradiated food does not come into direct contact with the radioactive material, thus preventing it from becoming radioactive. The safety of irradiated food is supported by endorsements for the treatment up to a million rad by respected organizations like the World Health Organization and the UN Food and Agricultural Organization. Comparisons of risk should also consider the hazards of traditional insecticides and preservatives.
In conclusion, the radiation method is a safe food preservation practice that does not make the food radioactive, and it should be weighed against the real and present dangers of foodborne illnesses and less desirable preservation practices.
Which of the following would be used to control mice and rats?
insecticide
herbicide
fungicide
rodenticide
Part of the dermal tissue that is made of hard, dead, cork cells is the _____.
The part of the dermal tissue consisting of hard, dead, cork cells is known as the periderm, which forms the protective bark in woody plants and serves as a defense against various environmental stresses.
The part of the dermal tissue that is made of hard, dead, cork cells is the periderm. In woody plants, the protective outer layer of dermal tissue is known as bark, which includes the cork cells. These cells are produced by the cork cambium, and upon maturation, they die and form a protective barrier.
The dermal tissue consists primarily of the epidermis, which in woody plants, is eventually replaced by the periderm as secondary growth occurs. This cork layer functions as a defense against environmental stress like dehydration, extreme temperatures, and potential pathogens.
A pet lizard and its shelter must be kept warm. What type of electromagnetic waves would most likely be used? gamma rays infrared light ultraviolet light microwaves
Answer:
Option B, Infrared Light
Explanation:
Infrared light is a long wavelength light with wavelength ranging from 700 nm to 1 mm. Being a long wavelength light, it is mostly responsible for making a surrounding warm just like the sun (which also emits infrared radiation). Thus, out of the given four options it is the infrared light which is capable to make the habitat of pet lizard warm.
Hence, the correct answer is option B
The type of electromagnetic wave that would most likely be used to keep the pet lizard and its shelter warm is infrared light.
What is electromagnetic wave?Electromagnetic waves are waves created as a result of vibrations between electric and magnetic field.
The type of electromagnetic waves we have are as follows:
radio wavesmicrowavesinfrared lightvisible lightultraviolet radiationX-raysgamma raysAmong these electromagnetic waves, infrared light provides warmth, hence, would most likely be used to keep the pet lizard and its shelter warm.
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A _____ is responsible for assessing where patients go once they are discharged from a medical setting.
Each _____ of organisms is divided into classes. order family phylum genus
The taxonomic classification system divides organisms into classes, with each group divided into further categories.
Explanation:The taxonomic classification system uses a hierarchical model, and each group of organisms is divided into classes.
From broadest to most specific, the classification categories for organisms are: domain, kingdom, phylum, class, order, family, genus, and species.
For example, in the Linnaean system, species that are most similar to each other are put together within a grouping known as a genus, and similar genera are put together within a family.
Each phylum of organisms is divided into classes according to the hierarchical Linnaean system of biological classification.
Explanation:Each phylum of organisms is divided into classes. The correct hierarchy in the biological classification system, starting from the broader categories to the more specific ones, is as follows: domain, kingdom, phylum, class, order, family, genus, and species. Each category in this hierarchy groups organisms based on their evolutionary relationships and morphological similarities. For example, within a phylum, there are multiple classes, and each class further divides into orders. This system of classification was established by Carl Linnaeus and is known as the Linnaean system or taxonomic classification system.
An 8-year-old boy's foster mother is concerned about three recent cavities found in his permanent teeth and reports the child eats a nutritional diet, doesn't eat junk food, and the town water supply is fluoridated. which suggestion should the nurse prioritize to this mother in regard to the child's dental health?
What safety procedural step must always be performed when setting up a vacuum filtration apparatus?
The safety procedural step that must always be performed when setting up a vacuum filtration apparatus is that first, you should always wear the proper protective equipment, next is that the vacuum filtration—you should clamp the flask of which is needed, securely to the ring stand. It must be secure or it may be in the way of performing the experiment.