Answer:
A is the correct answer
Explanation:
Persian windmill blades were vertical, like propellers, while European ones were horizontal, like egg-beaters. Explanation: ... The very first windmills featured with long vertical shafts with blades designed like rectangles who lived in ninth-century Persia. Six to twelve sails were produced of those windmills.
What are ome of the body' natural immune repone to injury that are cauing john ymptom
The body’s natural immune responses to injury that are causing John's symptoms are the innate immune response and the adaptive immune response.
The primаry function of the immune system is to defend the body from pаthogens, which аre diseаse-cаusing orgаnisms such аs viruses аnd bаcteriа. Tissues, cells, аnd proteins in the immune system work together to аchieve this function.
When а pаthogen gets into the body, the immune system reаcts in 2 wаys.
The innаte immune response is а rаpid reаction. Innаte immune cells recognize certаin molecules found on mаny pаthogens. These cells аlso reаct to signаling molecules releаsed by the body in response to infection.The аdаptive immune response is slower thаn the innаte response but is better аble to tаrget specific pаthogens. There аre 2 mаin cell types involved in this response: T cells аnd B cells.For more information about the immune system refers to the link: https://brainly.com/question/19843453
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Describe in your own words the process of gene expression (DNA → RNA → proteins)
Answer: A. DNA is transcribed into RNA, which is translated into protein
Explanation:
The process of gene expression is the information from DNA is transcribed into RNA, then this RNA is translated into protein.
What is gene expression?Gene expression is the process of directing protein synthesis by utilizing the genetic information encoded in genes (DNA). Gene expression enables organisms to develop various cell types and adapt to internal and external influences.
The process of gene excretion takes place in the cell nucleus and cytoplasm and is divided into two stages: transcription and translation.
DNA is employed in the transcription process to create copies in the form of mRNA. While translation is the process by which individual polypeptides are synthesized in the ribosome. Protein can be made up of one or more polypeptides.
Therefore, the information from DNA is transcribed into RNA, which is then translated into protein during the gene expression process.
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A scientist genetically engineered a grain cereal. The genetically engineered variety can produce its own vitamins and is drought resistant. What is the likely impact of growing such a cereal crop on the society
The correct response is (C) since it would help the hungry people. Cereal grains that have been genetically engineered offer several benefits for civilisation.
Both farmers and the poor would gain from a GM grain variety that can produce its own vitamins and is drought tolerant.
The multiple environmental challenges affecting agricultural output have been further exacerbated by drought. Even in the absence of much rain or water, crop varieties that are resistant to drought provide a high yield. In areas that are prone to drought, these kinds have generated a significant yield.
Vitamins are necessary for a healthy diet. They are necessary for many different bodily metabolic activities. Thus, including genes that code for the synthesis of vitamins in cereal grains such as rice aids in feeding the population that is undernourished.
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Full Question ;
A scientist genetically engineered a grain cereal. The genetically engineered variety can produce its own vitamins and is drought resistant. What is the likely impact of growing such a cereal crop on the society?
a. May trigger an adverse climate change
b. May worsen the water crisis around the world
c.Would be beneficial for the malnourished population
d. Would increase the shortage of food around the world
What is formula of calculation of risk?
Risk is defined as the probability of an event and its result. The following is a common formula of calculation of risk: Risk = Impact × Likelihood.
Risk can be defined as the chance that anything negative will occur. Risk is the unpredictable impact a choice will have on anything important to people (such as their health, well-being, wealth, property, or the environment), with a propensity for being detrimental. There have been many original interpretations put forth. "Effect of Uncertainty on Objectives" is the globally accepted definition of risk for use in a variety of applications.
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who is the ultimate authority on ethical issues?
Answer: There is no single ultimate authority on ethical issues, and different individuals and groups may have different approaches and sources of guidance for resolving them. The resolution may depend on the context, values, and beliefs of those involved.
Explanation:
(⌐■_■)
What is the least common multiple of 72 and 96?
Answer:
288
Explanation:
Answer:288
Explanation:
According to the primitive earth model which one of the following compounds was not present in the beginning.
A.NH3
B.H2S
C.CO2
D.O2
The Correct answer is Option D.Oxygen
According to Oparin, oxygen was not present in the primitive atmosphere of the Earth.
What is Oxygen?The chemical element with the atomic number 8 and symbol O is called oxygen. It belongs to the periodic table's chalcogen group, is a very reactive nonmetal, and an oxidising agent that easily produces oxides with most elements as well as other compounds. After hydrogen and helium, oxygen is the third most plentiful element in the universe and the most abundant element on Earth. Two atoms of the element combine to generate dioxygen, an odourless and colourless diatomic gas with the formula O 2 at standard pressure and temperature.
According to researchers at MIT, the Great Oxygenation Event (GOE), which is thought to have started as early as 2.33 billion years ago, was the beginning of oxygen's ongoing presence in the atmosphere.
Oxygen in Primitive EarthLouis Pasteur wrote about his research in 1864, demonstrating that microbial life could not have developed spontaneously in the absence of preceding life. This work is regarded as a milestone in modern science as it resolved a long-running debate regarding spontaneous generation.
The concept of spontaneous genesis holds that live things could appear miraculously from inanimate matter.
But Pasteur's findings presented evolutionary biologists with a fresh conundrum: if life could only develop from life, how did living things first originate on the planet?
The solution was presented in the 1920s by A.I. Oparin of Russia and J.B.S. Haldane of England, who independently made compelling cases that the origin of life could be explained by a lengthy and gradual process of chemical evolution rather than by the rapid spontaneous generation of complete organisms in a matter of weeks.
Elements primitive earthAn atmosphere developed when Earth cooled, primarily from gases released by volcanoes. It contained methane, hydrogen sulphide, and ten to 200 times as much carbon dioxide as the atmosphere we are surrounded by today. The Earth's surface began to cool and solidify after roughly 500 million years, allowing water to accumulate there.
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Las bacterias son capaces de transferir plasmido De una celula ah otra Mediante la estructura bacteriaNa Cual es esa estructura
Answer:
Pilus.
Explicación:
Pilus es la estructura que se encarga de transferir el plásmido entre las células bacterianas. Un pilus es un apéndice con forma de cabello que se encuentra en la superficie de muchas bacterias y arqueas. Esta estructura de pilus es responsable de la transferencia de plásmido de una célula a otra. Esta transferencia de plásmido de una célula bacteriana a otra se llama conjugación bacteriana, por lo que podemos concluir que el pilus es la estructura o apéndices que causa la transferencia de plásmido.
Cuales son las caracteristicas y organos q desarrolla el embrion y el feto por trimestre
Answer:
Su bebé crecerá más y aumentará de peso más rápido. Sus órganos y partes del cuerpo continuarán desarrollándose. Las uñas de las manos y los pies comienzan a formarse y los riñones comienzan a funcionar. Al final del primer trimestre, su bebé ha triplicado su longitud a aproximadamente 3 pulgadas de largo.
What type of mutation is insertion or deletion?
An insertion and deletion mutation is called as a frameshift mutation .
An insertion is a point mutation in which one or more base pairs is added to a DNA sequence. Point mutations is further divided into silent mutations, missense mutations, and nonsense mutations.
Frameshift mutation is considered as a genetic mutation caused by a deletion or insertion in a DNA sequence. This kind of mutation shifts the way the sequence is read. diseases like cystic fibrosis is a result of frameshift mutation that alters the CFTR gene. The harshness of frameshift mutation is reliant on the number of nucleotides and the position of insertion of nucleotides.
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5. Vascular plants have cells that carry water and other nutrients. One special type of
vascular tissue carries water up the plant. What is the name of that type of vascular
tissue?
1.Xylem
2.Phloem
3.Chloroplasts
4.None of the above
How do snails protect themselves from predators?
Their are various adaptation that helps snail to defend from predators that include cryptic coloration , thickened outer shell . They also produces mucous and irritating smells . They have quick hiding and withdrawal behaviors.
In general ,snails have a hard exoskeleton usually formed from crystalline calcium carbonate. these shells helps to protect snails from predators and some time extreme temperature. In addition they can also help with the defence against nematodes. These shells have many different structures like the one with spiral shapes helps for better hiding from predators .
Snails are also capable of regenerating the broken shell which is also an adaptation strategy .
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02.Un avión de masa 25000 kg se mueve con una aceleración de 3.5 m/s2. Determine la
fuerza que actúa sobre el avión.
Answer:
Force acting on the plane = 87,500 N
Explanation:
Given:
Mass of airplane = 25,000 kilogram
Acceleration of plane = 3.5 m/s²
Find:
Force acting on the plane
Computation:
⇒ Force = Mass x acceleration
⇒ Force acting on the plane = Mass of airplane x Acceleration of plane
⇒ Force acting on the plane = 25,000 x 3.5
Force acting on the plane = 87,500 N
In gene recombination what is used to separate or open vector DNA
The food we eat provides the energy our bodies need. We eat carbohydrates, lipids, and proteins. As food is broken down, the compounds are rearranged through chemical reactions forming new molecules that support growth and provide energy. Each biomolecule is made of monomers or building blocks. Which of these correctly pairs the macromolecule and its monomer. Select ALL that apply. A) lipid: fatty acid B) protein: amino acid C) carbohydrate: starch D) protein: nucleic acid E) carbohydrate: monosaccharide
Answer:A, B and E
Explanation: lipid:fatty acid, protein: amino acid and carbohydrate: monosaccharides
(Did this in UsaTestPrep)
The correct biomolecule and monomer pair are as follows:
lipid: fatty acidprotein: amino acidcarbohydrate: monosaccharideBIOMOLECULES:
Biological molecules are molecules formed as a result of biological activities. They are four in nature viz: carbohydrate, protein, lipid and nucleic acids. These biological molecules are polymeric molecules and hence, are made up of smaller molecules called MONOMERS. This means that multiple units of a specific monomer makes up the above listed polymer. The correct monomer - polymer (biomolecule) pair is as follows:lipid: fatty acidprotein: amino acidcarbohydrate: monosaccharidenucleic acid : nucleotideLearn more at: https://brainly.com/question/24282549?referrer=searchResults
What axis is the Independent variable located?
Answer:
The independent variable belongs on the x-axis (horizontal line) of the graph and the dependent variable belongs on the y-axis (vertical line).
In contrast to transporters, ion channels in cellular membranes .... Group of answer choices interact strongly with the molecules they transport undergo a conformation change with every solute they transport can only mediate passive transport form pores that are always open are always controlled by voltage
In contrast to transporters, ion channels in cellular membranes can only mediate passive transport form pores.
Only in order to open a membrane pore that enables a certain ion into the membrane do channel proteins undergo a conformation in the membrane. In contrast to carrier proteins, the ion will only move along its concentration gradient. It has been discovered that all membrane transport proteins that have been in-depth study are multipass transmembrane proteins, meaning that their transporters chains repeatedly pass through the lipid bilayer. These proteins allow certain hydrophilic solutes to traverse the membrane without coming into touch with the hydrophobic interior of the lipid bilayer by establishing a continuous protein pathway across the membrane.
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In order to see a recessive trait in an organism's phenotype, what must be the organism's genotype?
Answer:
The organism must have two recessive alleles of the same type. Recessive alleles are usually represented by a lower case letter.
Examples:
rr, hh, bb, aa
Explanation:
Which of the following methods of
human land use is LEAST LIKELY to cause
harm to the environment?
A. waste disposal
B. recreation
C. drilling
D. mining
Answer:
I say B
Explanation:
I say B would be the answer because you're recreating things, even from waste disposal
HELP ME
I WILL GIVE YOU BRAINLIEST
Answer:
I'm pretty sure it would be about 25% chance but i could be long
Explanation:
im sorry if this is wrong
19. What do you expect when the cell wall of a plant cell is removed by a certain way, then put in distilled water? a)The cell takes a longer time to swell. b)The proteins that are present in the cytoplasm exit through the cell membrane. c) The cell shrinks. d) The cell bursts. why is the correct answer (d)
The cell bursts when the cell wall of a plant cell is removed by a certain way, then put in distilled water because the cell wall is removed, the cell would get wet, which would cause it to burst..
How do plant cells react to exposure to distilled water?Putting a plant cell in distilled water causes it to become turgid. This is due to a process called osmosis, which causes the plant cell's cytoplasm to swell up and firmly press up against the cell wall as it absorbs water from the hypotonic distilled water.
Cell walls stop excessive endosmosis from happening when water enters the cell, which also prevents plant cells from bursting. If the cell wall were to be broken, water would enter the space and the cell would eventually burst.
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Which component in blood is directly related to Hemophilia? Why?
Answer:
Hemophilia is a hereditary bleeding disorder caused by a deficiency in one of two blood clotting factors: factor VIII or factor IX. Several different gene abnormalities can cause the disorder.
Explanation:
How many haploid sets of chromosomes are present in a diploid individual cell with a chromosome number of 32
A diploid individual cell with a chromosome number of 32 contains two haploid sets of chromosomes. A haploid set of chromosomes is a complete set of chromosomes that contains one of each type of chromosome.
Each haploid set contains 16 chromosomes in the diploid individual cell with a chromosome number of 32. During the process of meiosis, the parent cell divides into four daughter cells. During this process, the two haploid sets of chromosomes that were present in the parent cell are separated into the four daughter cells.
During the formation of the four daughter cells, each daughter cell contains only one haploid set of chromosomes. This means that in a diploid individual cell with a chromosome number of 32, there are two haploid sets of chromosomes present.
The two haploid sets of chromosomes present in a diploid individual cell with a chromosome number of 32 each contain 16 different chromosomes. These chromosomes are responsible for the genetic traits of the individual. Each of the 16 chromosomes contains specific genes that control certain traits. These genes are responsible for the physical characteristics of the individual, such as hair color, eye color, and height. These chromosomes also contain information that determines the sex of the individual.
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1. Do you believe we can bring an end to acid rain? How so?
2. What are some examples of land pollution?
Explain why the energy available at the top layer of the pyramid is a small percentage of the energy present at the bottom of the pyramid: *
The energy available at the top of the pyramid is a small percentage of the energy present at the bottom of the pyramid because of the process of energy transfer.
As energy flows up the pyramid, each level of the pyramid takes in energy from the level below and uses it to produce its own energy. This energy transfer is not 100% efficient, so some energy is lost at each level. By the time the energy reaches the top of the pyramid, the amount of available energy is greatly reduced.
Additionally, the organisms at the top of the pyramid have to use energy to stay alive and move around, so there is even less energy left to transfer to the next level. This is why the energy available at the top of the pyramid is so much smaller than the energy present at the bottom.
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why are food deserts dangerous to a community
Question: Why are tood deserts dangerous to a community.
Explanation:
In food deserts, healthy foods like fruits, vegetables, whole grains, dairy, peas, beans,meat ,and fish are often expensive or unobtainable
The lack of access to healthily foods in these communities translates to health disparities and high rates of chronic disease
Answer:
this is only what I know
Explanation:
Without access to healthy foods and people living in food deserts may be a higher risk of diet-related conditions as such as obesity, diabetes and even worse is that cardiovascular disease
Which substances are neuropeptides that inhibit pain impulse transmission in the brain and spinal cord
The most important of them is beta-endorphin, which, in addition to significantly lowering pain (its analgesic potency is many times that of morphine), is the opioid peptide that induces the most pleasure.
GABA, a neurotransmitter, also plays a role in central pain regulation by enhancing descending inhibition of spinal nociceptive neurons.
Neuropeptides are a broad category of chemically unique compounds that are found in and emitted by various sensory neurons. They play a role in the development, transmission, modulation, and perception of all forms of pain (physiological, neuropathic and inflammatory).
Neuropeptide Y (NPY) is a pain modulator that is generated in the brain. NPY receptors are found in the trigeminal ganglia and the trigeminal nucleus caudalis, implying an involvement in pain.
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This type of a boundary can be located at around 40°N latitude and 0° longitude?
3. Transform plate boundary can be located at around 40°N latitude and 0° longitude. It is a Venezuela region which lies in between South American Plate and Caribbean Plate.
What do plate tectonics entail?Large rock slabs called tectonic plates that separate the Earth's crust move constantly, changing the topography of the planet. According to the system of ideas behind the plate tectonics theory, the lithosphere, which makes up Earth's outer shell, is divided into many plates that move across the rocky inner layer of the planet above its soft core (mantle).
What constitutes a plate boundary?The line dividing two plates is referred to as a tectonic plate boundary. The tectonic plates are constantly and slowly shifting, but they do so in numerous directions. Some are travelling past each other while others are moving in opposite directions.
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During sexual reproduction, two gametes (sex cells) fuse to create a fertilized cell (zygote) with a complete set of chromosomes. What must be true about the number of chromosomes in each gamete
During sexual reproduction, two gametes (sex cells) fuse to create a fertilized cell (zygote) with a complete set of chromosomes. What must be true about the number of chromosomes in each gamete is only one set of chromosomes.
Sexual reproduction is a way of developing living things by combining genetic information from two individuals of different sexes through the process of fertilization. Fertilization occurs when an egg and sperm cell meet to produce a zygote.
Chromosomes are a group of fine threads in cells that function as carriers and stores of genetic information in living things. Gamete cells have one set of chromosomes (haploid) consisting of 23 chromosomes with the composition of sperm cells 22 A + X or 22 A + Y and ovum cells: 22 A + X
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what is the meaning of the term latitudinal gradient?
a) Biodiversity increases as you move from the Earth’s oceans toward the land areas.
b) Biodiversity decreases as you move from Earth’s poles toward the equator.
c) Biodiversity increases as you move from Earth’s ocean areas toward the deserts.
d) Biodiversity increases as you move from the Earth’s pole toward the equator.
Answer:
d) biodiversity increases as you move from the Earth's poles toward the equator.
Explanation:
i took the test
The meaning of the term latitudinal gradient is that biodiversity increases as you move from the Earth’s pole toward the equator. The correct option is d.
What is a latitudinal gradient?A latitudinal gradient shows the pattern of distribution of biodiversity in a geographical area. It tells where the species increase or decrease within the areas.
The latitudinal gradient tells that toward the tropic areas, the biodiversity of the terrestrial and marine ecosystems increases. The tropics is the area of tropic of cancer in the Northern Hemisphere and the tropic of Capricorn in the Southern Hemisphere.
Thus, the correct option is d) Biodiversity increases as you move from the Earth’s pole toward the equator.
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