Over 50 amino acids in a chain are considered a protein.
Answer:
More than 100 amino acids linked together is considered a protein.
Explanation:
The scientists categorize the links of amino acids based on the number of aminoacids:
Peptides: two to ten amino acids
Polypeptides: 11 to 100 amino acids
Proteins are 100 and more of 100 amino acids.
A protein is a chain of amino acids linked by peptide bonds. They are responsible of the biochemical reaction of cells.
How does the examples from redi, spallanzani, and Pasteur experiments demonstrate science as a way of knowing
Answer:
Spontaneous generation
Explanation:
A nurse needs to perform a postural drainage of both lung apices in a 4-year old child. in what position should the nurse place the child?
The most effective way to utilize abs brakes is to
To effectively use ABS brakes, apply steady pressure to the brake pedal and allow the ABS system to modulate braking force, preventing wheel lock and allowing for steering control.
Explanation:The most effective way to utilize ABS brakes is to apply steady pressure to the brake pedal and allow the system to modulate the braking force to prevent the wheels from locking. This helps maintain steering control during an emergency stop or when braking on slippery surfaces. ABS systems, like those used in large vehicles such as trucks, work by converting gravitational potential energy into increased internal energy (higher temperature) of the brake material, which controls the speed without converting it into kinetic energy that would increase the truck's velocity.
Therefore, rather than pumping the brakes, drivers of ABS-equipped vehicles should apply constant, firm pressure on the brake pedal during a stop. ABS works best under these conditions because the system can adjust the braking force more rapidly than a driver can. This method helps prevent the wheels from locking and enables drivers to maintain control over the direction of the vehicle, which is particularly vital during sudden stops or on slippery roads.
Choose the answer which best explains how vasoconstriction can cause increased blood pressure. choose the answer which best explains how vasoconstriction can cause increased blood pressure. vasoconstriction increases peripheral resistance (also called vascular resistance). vasoconstriction decreases cardiac output. vasoconstriction increases cardiac output. vasoconstriction decreases peripheral resistance (also called vascular resistance).
The sum of all the chemical reactions carried out in an organism is called
Research has found that in response to stress ______ tend to exhibit the so-called tend-and-befriend response.
a. males but not females
b. females but not males
c. neither males nor females
d. both males and females
Ocean water is sinking at the North Atlantic Buoy Station. What could be the reason that the water sinks?
A. Warmer water sinks below cold water.
B. Denser water sinks below less dense water.
C. Freshwater sinks below ocean water.
D. Water of low salinity sinks below water of high salinity.
The reason that the water sinks is : ( B ) Denser water sinks below less dense water
Water densityThe denser a water body becomes the more likely it will sink also the increase in solute content ( salinity ) a water contains, the denser the water becomes.
Therefore a water of high salinity will be more dense than a water with low salinity because of the increased amount of solute it contains.
Hence we can conclude that the reason that the water sinks is Denser water sinks below less dense water.
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The nurse is caring for a patient who has sustained severe burns to 50% of the body. the nurse is aware that fluid shifts during the first week of the acute phase of a burn injury cause massive cell destruction. what should the nurse report immediately when reviewing laboratory studies?
Synthetic estrogen-like compounds have been found in the marine environment. The synthetic compounds "mimic" the biological activity of the important vertebrate sex hormone estrogen. How is this pollutant best classified and why? What caused this to be a public health concern?
The synthetic estrogen-like compounds found in the marine environment are best classified as endocrine disruptors.
Endocrine disruptors are chemicals that can interfere with the endocrine (hormone) systems of organisms. These synthetic compounds mimic the biological activity of natural hormones, such as estrogen, by binding to hormone receptors, which can lead to a range of adverse developmental, reproductive, neurological, and immune effects in both wildlife and humans.
Widespread presence: These pollutants are found in various water bodies due to wastewater discharge and agricultural runoff.
Impact on aquatic life: They can affect fish reproduction, development, and behavior.
Potential human health risks: Humans can be exposed through contaminated seafood consumption or water sources. Potential effects include hormonal imbalances, developmental problems, and certain cancers.
The concern is that these pollutants can disrupt the hormonal balance in both aquatic organisms and potentially humans, leading to various health issues.
When you want to write your brain must send and receive information from your hand. What type of nerve is most likely responsible for passing the information from the brain to the hand?
Answer:
Spinal Motor
Explanation:
Sensory (afferent) neurons bring information about the world within and around the body from sense organs to the brain and spinal cord
Motor (efferent) neurons carry messages from the brain and spinal cord out to the muscles and glands.
Therefore we know it has to be motor.
Cranial nerves provide motor and sensory supply mainly to the structures within the head and neck
Spinal motor neuron to transmit signals from the brain to individual muscle groups
So the answer is Spinal Motor
During writing, the information from the hand travels to the brain, and the brain sends a signal to the hand for the process, and this signal is reached by the hand from the brain by the motor neuron.
What is the function of the motor neuron?The nervous system is in charge of receiving messages from the sensory organs and then sending appropriate actions, and during writing, the hand writes the information due to motor neurons. Every action that is happening in the environment is sent to the brain by the sensory neuron, and later, with the help of the motor neuron, the body reacts to it.
Hence, during writing, the information from the hand travels to the brain, and the brain sends a signal to the hand for the process, and this signal is reached by the hand from the brain by the motor neuron.
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How many codons code for the amino acid arginine?
Answer:
The number of codons that code for arginine are six: CGU, CGC, CGA, CGG, AGA, and AGG. Where C = cytosine, G = guanine, U = uracil, A = adenine.
Explanation:
Arginine is a fundamental amino acid for the body and is part of the proteins. It is found in red meat, in poultry meat and in dairy products, and stimulates the function of the immune system, increasing leukocytes. In addition, it is involved in the production of creatine. In messenger RNA it is encoded by six codons: CGU, CGC, CGA, CGG, AGA, and AGG.
Arginine, an amino acid, is coded for by six different codons - CGU, CGC, CGA, CGG, AGA, and AGG. The redundancy of the genetic code allows multiple codons to code for the same amino acid, mitigating the effects of mutations on protein coding. The number of codons coding for an amino acid can vary, with some being coded by single codons while others by multiple codons.
Explanation:The amino acid arginine is coded for by six different codons. These codons are CGU, CGC, CGA, CGG, AGA, and AGG. This aspect is part of the redundancy of the genetic code, which means that multiple codons can code for the same amino acid.
This redundancy is helpful in reducing the impact of mutations. For instance, if a mutation changes the codon CGU to CGC, it would still code for the same amino acid - that is, Arginine. Hence, the effect of such a mutation would be mitigated.
It's essential to note that how many codons code for an amino acid varies for different amino acids. Some amino acids are encoded by a single codon, while others, like Arginine, are encoded by multiple codons.
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earth is considered a system because all of its parts ___
The given blank can be filled with interact.
Earth is considered as a dynamic system, that is, a combination of interdependent, interrelated, or associating components creating an entity or a collective whole. On a macro level, the system of the Earth sustains its functions and existence as a whole via the associations or interactions of its components or parts.
At a micro or lower level, it is beneficial to consider of the Earth system in terms of four central constituents known as the subsystem, that is, the geosphere, hydrosphere, biosphere, and atmosphere.
Earth is considered a system because all of its parts are interrelated and interact
Further explanationEarth consists of various components that are mutually supportive and related to each other
The earth can be said to be a system because each component inside it interacts so that it creates a very large number of collectivities
Components in the earth are incorporated into a Geosphere, namely a layer on the surface or under the surface of the earth that has a direct and indirect influence on the survival of creatures.
inside it
This geosphere consists of
The atmosphere, namely the air layer of the earth such as the troposphere and stratosphere,Biosphere which is a layer of earth consisting of land, water, and air,The hydrosphere is a layer of water like a river, a glacierAnthroposphere as a place of lifeThe lithosphere, which is the skin of the earth formed by, among others, sedimentary rocksThe existence of these components and the presence of energy that flows between each other makes the earth interdependent with each other
Treatment of one component in the system will affect other components so that it can create a cycle that continues to occur as in the food cycle (food chain) or water cycle
So the components in the Earth's system are interrelated and interacting
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the biosphere, hydrosphere, geosphere, and atmosphere are interconnected.
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part of the Earth system
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Keywords: Earth, system, the biosphere, hydrosphere, geosphere, atmosphere
Which of these provided the first evidence of life on Earth? ancient virus ancient bacteria non-living molecules reproducing molecules
Answer: Ancient Bacteria.
Explanation: The first evidence of life on earth was Bacteria. These ancient bacteria were found in the hydro thermal vent.
The putative fossil of the microorganism was found in the hydrothermal vent.They are unknown and they might have live over 3.7 billion years years ago. They might have the ability to live in such hot environment.
An mi that has affected the full thickness of the heart and can cause a left ventricular aneurysm is called a(an):
Mendel also proposed that the particulates separate independently into gametes, an idea known as:
default assortment
pre-established assortment
random assortment
known assortment
Skeletal muscle tissue is striated and voluntary. true or false
would glucose and fructose be considered structural isomers or geometric isomers?
According to
e. o. wilson, ________ refers to genetic variants among a single species, individuals within a species, communities of organisms, and ecosystems.
The answer to this question is biodiversity. Biodiversity is the variants in organisms, animals, and plants simplified as variation of life in all levels in the ecosystem. Mr. Edward Osborne Wilson is known as the father of biodiversity. Biodiversity is important because it makes the ecology stable and give economic benefits to people.
In the dog and cat, sesamoid bones are found between the
Sesamoid bones, like the patella, are found within tendons near joints such as the knees, hands, and feet in both dogs and cats. They help in protecting the tendons and improving mechanical function at these joints.
In dogs and cats, sesamoid bones are typically found embedded within tendons near joints, particularly at the knees, hands, and feet. An example of a sesamoid bone that is common in both animals and humans is the patella (kneecap). The primary function of sesamoid bones is to protect tendons from compressive forces and improve the mechanical function of the joints they are associated with. These bones are small, flat, and are named due to their resemblance to a sesame seed. Although the number and exact placement can vary between individuals, they are always associated with tendons, especially in areas subjected to high pressure or tension.
Answering the specific question posed, in the context of the options provided (a. flat bones, b. short bones, c. sesamoid bones, d. irregular bones) in section 8 of the textbook, the correct choice is c. sesamoid bones.
Ben was training for a cross-country bicycle race. During his practice run, Ben's tire went flat and he fell off of his bike, cutting both knees. He was worried that he would not be able to compete in the race being held in two weeks, but his father told him not to worry: His knees would be healed by then.
What process is responsible for new tissue growth and the healing of Ben's knees?
A) mitosis
B) meiosis
C) duplication
D) transcription
what are the characterstics that define a population?
which is a characterstic of the renaissance?
According to both Gail Sheehy and Daniel Levinson, most people in their twenties are
A. undergoing a period of identity crisis.
B. focused on furthering their careers.
C. in a bridging stage from adolescence to adulthood.
D. looking for love and excitement.
Drugs that affect the central nervous system causing mental or behavioral changes are called:
Answer: Psychoactive Drugs.
Explanation: A psychoactive drug can be defined as the chemical substance that that acts primarily on the central nervous system of the brain.
It also alters the various functions of the brain which changes the mood, perception, consciousness and behavior of the person temporarily.
Example: coffee, alcohol, cannabis, and other medication.
The leg curl is a muscular resistance exercise that primarily works which muscle group?
The leg curl exercise primarily works the hamstrings, which perform a concentric contraction during the exercise to pull the heel towards the buttocks, similar to how biceps work in a bicep curl.
The leg curl is a muscular resistance exercise that primarily targets the hamstrings, which are the muscles along the back of the thigh. These muscles include the biceps femoris, semitendinosus, and semimembranosus. During the leg curl, the action performed by the hamstrings is known as a concentric contraction, which happens when these muscles contract and shorten to pull the heel towards the buttocks. This is analogous to the lifting phase of the bicep curl for the arm, where the bicep contracts to lift the lower arm upwards against gravity. It's important to include leg curls in a resistance training regime to ensure that major muscle groups like hamstrings are effectively worked.
Hence, the leg curl is a muscular resistance exercise that primarily works in hamstring muscle group.
Why is it important to form a hypothesis before experiments are conducted?
Phospholipids are the main component of which of the following organelles?
Flagella
Lysosomes
Cytoskeleton
Plasma membrane
The type of cartilage growth in which stem cells at the internal edge of the perichondrium divide, differentiate into chondrocytes, and create new cartilage at the periphery is called _________________ growth.
Appositional growth is the type of cartilage growth that involves stem cells at the internal edge of the perichondrium dividing, differentiating into chondrocytes, and creating new cartilage at the periphery.
Explanation:The type of cartilage growth being asked about is called appositional growth. This process involves stem cells at the internal edge of the perichondrium, a layer that surrounds the cartilage, dividing and differentiating into chondrocytes, the cells that make up cartilage. These newly formed chondrocytes then produce new cartilage at the periphery, expanding the cartilage outward. This type of growth allows a cartilage structure to increase in diameter and thickness.
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The type of cartilage growth in which stem cells at the internal edge of the perichondrium divide, differentiate into chondrocytes, and create new cartilage at the periphery is called "appositional" growth.
Cartilage is a specialized connective tissue that can grow and adapt in two primary ways: appositional growth and interstitial growth. Here, we focus on appositional growth.
Appositional growth involves the addition of new cartilage tissue to the surface or periphery of existing cartilage. It occurs in the following manner:
1. Stem cells located in the inner layer of the perichondrium (a connective tissue membrane surrounding cartilage) divide and differentiate into chondroblasts.
2. Chondroblasts secrete the extracellular matrix of cartilage, composed of collagen and proteoglycans, which gradually hardens.
3. As the matrix hardens, the chondroblasts within it become mature chondrocytes, the cells responsible for maintaining the cartilage.
4. New layers of cartilage are added to the existing cartilage, increasing its thickness and size over time.
Appositional growth allows cartilage to expand and adapt, particularly during periods of growth or in response to mechanical stress, helping to maintain tissue integrity and function.
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In contrast to younger patients, older patients are more prone to a decrease in blood pressure (bp) upon standing because
Seasonal variations in ocean temperatures can impact the populations of living organisms in the ocean. How would a phytoplankton population be affected by these changes?
Answer:Lower ocean temperatures allow for phytoplankton to bloom, which increases the phytoplankton population.
Answer:
Explanation:
These modifications would have an impact on a phytoplankton community by boosting the phytoplankton population. The ocean's cool temperature would enable phytoplanktons to flourish or proliferate. Therefore, growth would be slowed by high temperatures. This is due to the fact that warm water would mix less with the water that is nutrient-rich layers.
A ----- is a visual display of information or data
A chart is a tool used to visually display information or data, with formats like bar graphs, pie charts, frequency tables, histograms, and infographics being some of the many types available.
Explanation:A chart is a visual display of information or data. There are various types of charts and graphs that are used to represent data in a visually engaging way. For instance, bar graphs are a popular choice when you want to compare the size, quantity, rates, distances, or other quantitative categories, and can display data for different groups like countries or years on the vertical axis.
Pie charts show data in the form of wedges in a circle, representing the percentage of the whole, making them suitable for displaying parts of a whole. On the other hand, a frequency table displays grouped data along with their corresponding frequencies, while a histogram uses contiguous rectangles to represent the frequency distribution of data, with the x-axis showing the data and the y-axis displaying the frequency.
Infographics combine text with various types of graphics to convey information succinctly, which is especially useful in newspapers and on the internet to quickly compare facts and trends. Remember, the impact of any graph or chart is based on the choices made during its creation, such as the time frame, the data included, how groups are divided, and the scale of the axes, therefore, they should be interpreted with a degree of skepticism.
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