Answer:
Studying cells helps us understand how organisms function. Cellular components work together to carry out life functions. Cellular processes enable organisms to meet their basic needs.
The advantages of understanding the working of different components of the cell are as follows:
(i) It Will help us to study the basics of life processes like nutrition, metabolism, etc.
(ii) It gives us a better understanding of cell division, repair, and regrowth.
What are the components of the cell?The cell components include the Cell wall, cell membrane (plasma membrane), Cytoplasm, and cell organelles. The presence of these components slightly varies in plant and animal cells.
Example: Cell wall is present in plant cells but absent in animal cells.
Understanding the working of different components of cells will give us more clarity on how each process like mitosis, meiosis, DNA replication, etc is carried forward.
Example: Learning more about a cell organelle - mitochondria we have understood every important process called the electron transport chain and how chemical energy from food is converted to ATP (energy used by cells).
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3. Would you expect organisms belonging to the same class to have fewer structural characteristics in common than organisms belonging to the same order? Explain.
The organisms belonging to the same order will share more structural similarities than the organisms belonging to the same class. It is because order is a lower group in taxonomic classification.
What is taxonomy?Taxonomy is the systematic and scientific approach of grouping things based on their similarities. Taxonomy provides hierarchical classification of the things.
Taxonomy contains seven basic elements in which the organisms are grouped into. Species form the unit level of taxonomy. Genus, family, order, class, phylum and kingdom of an organism is included. Kingdom is considered as a superior and diverse group of taxonomy.
Thus, taxonomy is an effective way of representing diverse information of organisms in an organized way.
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the blood flow of healthy individuals is laminar but becomes turbulent during certain vascular diseases. endothelial cells (ecs), which line the lumen of blood vessels, are in direct contact with blood. you hypothesize that different types of blood flow (i.e. laminar vs. turbulent) may cause endothelial cell dysfunction which in turn contributes to the progression of diseases. to test this hypothesis, you fabricated a microfluidic device in which ecs were seeded inside a rectanugular channel of prescribed width
Blood flows in orderly, parallel layers through the arteries in laminar flow when there are no impediments to disturb the layers. A healthy artery, like the femoral artery, exhibits laminar flow.
When the flow channel becomes disordered, layers fail to form, and eddy currents develop, the scenario is referred to as turbulent flow.
The current vascular hemodynamics paradigm views typical blood flow as pulsatile laminar flow. Diseases like atherosclerosis and brain aneurysms can be brought on by the transition to turbulence. But recently, we showed that turbulence can exist in both the aneurysm sac and the main artery of experimental models of brain aneurysms.
The necessity for even mixing of blood corpuscles as they travel along the arteries drives the turbulence of blood flow, which originates in the cardial cavities. We think that the energy expended might be sufficient to overcome a resistance in the main arteries, where the wall lacks active contraction components.
Small arterial micro vessels (Metereriolar-like type) have a similar inner wall relief that must be extruded into the lumen of the nuclear zone of the endothelial cell. However, blood movement within arterial micro vessels is highly dependent on the myogenic wave activity of intramural smooth muscle cells.
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1. A ball is held above the ground, and then is dropped so it falls straight down.
(Restrict your analysis to the ball moving in the air, BEFORE it hits the ground.)
Since this is an analysis based on diagrammatic information, refer the attached image for a detailed explanation:
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what does the word eukaryote mean
Answer:
Well it's a generic term for organisms which possess eukaryotic cells (cells with central nucleus and their plasma membrane)
Answer:
is a living oranism other than the eubacteria and archaea
Explanation:
it consists of cells which genetic materials (DNA) in form of chromomes contained within a distinct nucleus
A plant grows toward the light.The light is an a example of a??
Answer:
Positive Phototropism
Scientists use science to____________________the world.
Answer:
Scientists use science to___Study_________________the world.
Explanation:
Hope this helps :)
The human population has changed in ways that are similar to other populations. How has the human population changed since it first appeared on earth?.
Answer:
b. the population is generally increase, and at rates that have varied over time
Explanation:
Many bacteria and fungi have a difficult time surviving on our food if the food is very salty. The best explanation for this is.
Many bacteria and fungi have a difficult time surviving on our food if the food is very salty. This happens because the food acts as a hypertonic solution for the bacteria and fungi.
Bacteria are the microorganism that are prokaryotic in nature. These are unicellular organisms present everywhere in an environment. These can be of varying shapes and sizes like coccus, spirillum, vibrio, etc. Bacteria can be both harmful as well as useful for the organisms and environment.
Hypertonic solution is the one in which when any cell is placed, it loses its water. The solution contains more solute particles than the cell placed in it. As a result of osmosis, water moves out of the cell. The same phenomenon happens with bacteria in salty foods, it loses its water and becomes dehydrated.
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Diseased animal cells may produce molecules that activate death cascades to kill the cells in a controlled manner. Why would neighboring healthy cells also die?.
Answer:
neighbouring healthy cells will die when molecules activate death cascades because the death molecule passes through gap junctions.
What monomer do shapes F, G and H represent?
Which macromolecule did you build?
The macromolecule which is formed or build is lipid.
What is lipid?Lipid has been described as an organic compound which has been not able to dissolve in the water. The example of the lipid are oils, waxes, hormones, as well as fats. The main function or performance of the lipid has to maintain the structure or the components of the cell membranes, that storage site of energy, and important molecule of the cell signaling.
A monomer has been defined as a type of molecule that is able to make chemical bond with any of the molecule and has been form a long chain and polymer in a sequence of the chain of an unspecified or unknown number of the monomers.
Therefore, the macromolecule which is formed or build is lipid.
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Define the words cell.
Answer:
the word cells are called cells because cells are cells so cells have to be cells so to get cells you have to add cells and then subtract cells then add cells again to give you sales
Answer:
the smallest structural an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane. Microscopic organisms typically consist of a single cell, which is either eukaryotic or prokaryotic.
Explanation:
Hope it helps! =D
the deliberate manipulation of organisms by transferring genetic material from one organism to another, a type of genetic engineering, is known asdna technology.
Gene therapy, the deliberate manipulation of organisms by transferring genetic material from one organism to another, a type of genetic engineering, is known asdna technology.
Gene remedy is a way that modifies a person's genes to deal with or remedy disease. Gene healing procedures can paintings via way of means of numerous mechanisms: Replacing a disease-inflicting gene with a wholesome reproduction of the gene. Inactivating a disease-inflicting gene that isn't functioning properlyGenetic engineering, additionally referred to as genetic change or genetic manipulation, is the change and manipulation of an organism's genes the usage of technology.
The method of manipulating the genetic cloth of organisms, additionally referred to as biotechnology.The advent of recent DNA into an present organism's cell, typically via way of means of vectors which includes plasmids and changed viruses.Genetic engineering is described because the direct manipulation of an organism's genes which include heritable and nonheritable recombinant DNA constructs.
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Imagine a company that sells robots like the one shown above. The company makes this claim: “This living machine is the perfect companion.” Make a case to either support or refute this claim. How similar are living and nonliving systems?
This is a perfect example of artificial intelligence and machine learning.
What is artificial intelligence?
Artificial Intelligence (AI) is intelligence exhibited by machines, as opposed to natural intelligence demonstrated by animals and humans. Artificial intelligence research is described as the study of intelligent agents, which refers to any system that observes its surroundings and performs actions that optimize its chances of success.
The following are some similarities between living and nonliving objects: both living and nonliving things have mass.
They both take up a considerable amount of room.
They are both made up of fundamental components (cells for living, particles for nonliving things).
Both may be transported at the expense of energy.
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Which of the following statements about a
controlled experiment is true?
a. All the variables must be kept the same.
b. Only one variable is tested at a time.
c. Scientists always use controlled experiments.
d. Controlled experiments cannot be performed
on living things.
Answer: The controlled experiments are performed by the scientists when they want to study the changes in the sample by changing a single variable. So, the correct answer is option (b).
Explanation:
In case, all variables are kept same, no changes would be observed in the experiment sample. A controlled experiment can be performed on living things as well as non-living. But, controlled experiment cannot be performed on the things which are influenced by a lot of variables, as they cannot create realistic results. So, the option (a), (c), and (d) are incorrect.
The synthesis of sugar molecules through the process of photosynthesis requires energy absorbed from sunlight. Bearing this in mind, what kind of reaction is photosynthesis?.
Answer:
light dependent reaction?
Explanation:
The area of the brain stem that is important in controlling breathing is the? a. suprachiasmatic nucleus b. cerebellum c. limbic system d. medullae. hippocampus
Answer:Medullae
Explanation:Midbrain,pons and medulla oblongata are collectively called the brain stem.The bottom part of the brain stem helps regulating automatic functions such as breathing,heartbeat,blood pressure,respiration and swallowing.
A student has a pure culture of bacteria growing in a flask and wants to know how many living cells are in the culture at a given time. Which method should she employ to get an estimate?.
A student has a pure culture of bacteria growing in a flask and wants to know how many living cells are in the culture at a given time. Plate counting is the method should she employ to get an estimate.
It is a technique to determine the number of living cells in a sample using different steps.
The sample (1g) is first diluted with a suitable diluent (9g) and then mixed together. This solution is then added to another (9g) diluent. It is repeated to get a number of series.
The sample is then plated on an agar plate. These plates are then moved to an incubator at a suitable growth temperature.
We then calculate the plates having colonies between 50-300. Now we have to calculate the number of organisms that were in the original sample.
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What determines which nitrogen bases form pairs in DNA?
Answer: adenine pairs with thymine, cytosine pairs with guanine
Explanation:
the nitrogenous bases are adenine, thymine, guanine and cytosine.the pairing occurs because the complementary bases form hydrogen bonds with each other.
Explanation:
The nitrogen bases form the double strand of DNA through weak hydrogen bonds. The nitrogen bases, however, have specific shapes and hydrogen bond properties so that guanine and cytosine only bond with each other, while adenine and thymine also bond exclusively.
When a scientist makes a discovery, it must be peer-reviewed (read and edited by a group of scientists that he does not know or do not know one another) before the finding can be published in a journal. which reason would not prevent the finding from being published?
Answer: if its multiple choice its d
Explanation:
A method to identify a variety of skin infections through the use of ultraviolet light is:_______.
A method to identify a variety of skin infections through the use of ultraviolet light is Phototherapy.
A treatment called phototherapy uses a particular kind of light. By facilitating the liver's breakdown and removal of the bilirubin from your baby's blood, it is occasionally used to treat neonatal jaundice.Longer than X-rays but shorter than visible light is ultraviolet. Sunlight contains UV radiation, which makes up around 10% of the Sun's overall electromagnetic radiation output. Electric arcs and specialty lighting, such mercury-vapor lamps, tanning lamps, and black lights, can also produce it.It serves a variety of purposes, including covering and safeguarding your body. It aids in keeping away pathogens. But occasionally, the microbes can result in a skin illness.To learn more about Phototherapy.
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Prompt #1:
Imagine an initiative for some aspect of sustainable development (such as higher fuel
efficiency standards for vehicles, a drive to promote marketing and consumption of
locally-produced vegetables, or an initiative to improve local air quality). Describe how
the five example domains of economic, social, environmental, technological, and public
policy are related to the initiative.
Response:
All five domains are related to sustainable development because they are the 5 domains of sustainability.
Sustainability has always been portrayed as having three domains: the environment, economics, and the socio-cultural milieu, and they must be managed interdependently for a sustainable balance to occur (i.e., the Bruntland Commission of the United Nations, 1987). Many business and political leaders have expressed skepticism about equating another field with economics.
Even those who will adopt the ideals of living in harmony with nature frequently discover that the instruments available in these three spheres are inadequate. Thus, the environment, social, technological, economic, and public policy are the suggested Five Domains of Sustainability. Additionally, these domains ought to serve as the organizing principles for regional and urban sustainable development, urban growth management, and urban administration.
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What type of transport requires energy to carry a nutrient from outside the cell, through the cell membrane, and into the cell?.
The amino acids which can provide positive charge will be Arginine or lysine .
What do a polypeptide's N-terminus and C-terminus look like?
The "N-terminus," also known as the "amino terminus," and the "C-terminus," also known as the "carboxyl terminus," are the free amine and carboxylic acid ends of the chain, respectively. These two protein termini differ chemically from one another, hence it follows that they will naturally have various chemical properties.
Arginine is an amino acids that helps in body build protein . In packaging of DNA arginine and lysine are used because they carry positive charge.
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Active transport requires energy to carry a nutrient from outside the cell, through the cell membrane, and into the cell.
What is active transport?Active Transport is defined as a process involving the movement of molecules against a gradient or an obstruction from a location of lower concentration to a region of greater concentration with the use of external energy.
During active transport, a protein pump uses ATP, which is a sort of stored energy, to move molecules.
Some examples of active transport include the uptake of glucose by the human intestine and the uptake of minerals or ions by plant root hair cells.
Primary active transport and secondary active transport are the two categories of active transportation.
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Enzymes that control chemical reactions are a type of macromolecule known as-
A. carbohydrates.
B. lipids.
C. nucleic acids.
D. proteins.
Answer:
D proteins is the correct answer
The act of getting bigger or the body changing
Answer:
Puberty
Explanation:
An anticodon is a sequence found on a(n) ______ molecule, whereas a codon is a sequence found on a(n) ______ molecule.
An anticodon is a sequence found on a tRNA molecule, whereas a codon is a sequence found on a mRNA molecule.
tRNA Molecule- Transfer RNA, often known as tRNA, is a tiny RNA molecule that is essential for the production of proteins. Between both the messenger RNA (mRNA) molecule as well as the expanding chain of amino acids that form a protein, transfer RNA acts as a link (or adaptor).
mRNA Molecule- Messenger ribonucleic acid (mRNA) is just a single-stranded RNA molecule that, in molecular biology, is read by a ribosome during the protein-synthesis process and corresponds to a genetic sequence of a gene.
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An exon is considered a coding sequence of dna, and its information is retained in the processed mrna within a cell. True or false?.
It is true that An exon is considered as the coding sequence of the dna, and its information is retained in the processed of mRNA within the cell.
The sequence was of DNA present in the mature messenger the RNA, some of which the encodes the amino acids of the protein. Most of the genes have the multiple exons with the introns between them. introns are the noncoding sections of an RNA transcript, or the DNA encoding it, that are also spliced out before the RNA molecule which is translated into the protein. The sections of the DNA (or RNA) that code for the proteins are called as exons.
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Select the correct answer from each drop-down menu.
Scientist Galileo Galllel used the
to observe the stars and planets. This same tool has allowed modern
to see objects that are billions of light years from Earth. This tool also detects things such as
and x-rays, which are invisible to the human eye.
Answer:
1. telescope
2. astronomers
3. radio waves
Explanation:
A telescope allows one to magnify what they're looking at to see it closer than it actually is. Astronomers are those that study planets, stars, and other celestial bodies in space. Modern telescopes have the ability to detect radio waves from astronomical objects that emit them from far away. This allows us to see what we normally would not be able to.
Scientist Galileo Galilei used the telescope to observe the stars and planets. This same tool has allowed modern astronomers to see objects that are billions of light years from Earth. This tool also detects things such as gamma rays and x-rays, which are invisible to the human eye.
Galileo observed the night sky and made several revolutionary findings, such as the discovery of the four largest moons of Jupiter, the phases of Venus, and the craters and mountains on the Moon. These observations provided compelling evidence for the heliocentric model of the solar system proposed by Copernicus, where the Sun is at the center, and the planets, including Earth, revolve around it.
Galileo's use of the telescope marked a pivotal moment in the history of astronomy, as it allowed scientists to explore the cosmos in unprecedented ways. Fast forward to modern times, and telescopes have undergone significant advancements and technological improvements. Modern astronomers now have access to powerful telescopes, including space-based telescopes like the Hubble Space Telescope, which can observe objects that are billions of light-years away from Earth. These telescopes have provided stunning images and data of distant galaxies, nebulae, and other celestial phenomena, shedding light on the vastness and complexity of the universe.
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Endocrine glands secrete their products into ___; exocrine glands secrete their onto ___.
The endocrine glands secrete their products into intracellular spaces and the exocrine glands secrete their products into ducts/surface
Endocrine glands are network of various glands in your body that produce and secrete chemicals known as hormones. They are ductless glands. Therefore, the hormones that are produced by them would be secreted directly into the intracellular spaces which would diffuse into the bloodstream and reach the cells in the body.
The glands in various location in human body that are responsible for the production of hormones are Pituitary, Pineal, Pancreas, Hypothalamus, Thyroid, Adrenal, Testes and ovaries.
Exocrine glands are network of glands that secrete the compounds produced by them into ducts. These ducts carry the products to the surface and release them. Sweat glands, Salivary glands, sebaceous glands, Lacrimal glands are some of the exocrine glands.
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Which of the following would be a good example of responsiveness to your environment?
You are scared of the dark.
You are scared of the dark.
You are tired at the end of the day.
You are tired at the end of the day.
You are hungry several hours after breakfast.
You are hungry several hours after breakfast.
You are taller now than when you were a baby.
A good example of responsiveness to your environment is: You are scared of the dark; option A
What is responsiveness to the environment?Responsiveness to their environment is one of the characteristics of living things. This characteristic is known as irritability, which is the response to stimuli from within the organism or the outside environment.
When an organism responds to stimuli, it could show an immediate or delayed response to the stimuli. For example, plants show a delayed response to environmental stimuli whereas animals show an immediate response to external stimuli.
An example of a response to changes in the environment is being scared when it gets dark.
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what is mediastinum?!.
Answer:
The area between the lungs.
Explanation:
Answer:a membranous partition between two body cavities or two parts of an organ, especially that between the lungs.
Explanation: