According to the research, risk assessment is a tool that helps us create cost-effective ways to protect our health and the environment.
What is risk assessment?It is the process aimed at estimating the magnitude of the risks that could not be avoided, that is, it seeks to identify and eliminate risks present in the environment.
It allows you to adopt measures and make decisions focused on meeting the objectives established in terms of health and the environment.
Therefore, we can conclude that according to the research, risk assessment is a tool that helps us create cost-effective ways to protect our health and the environment.
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Which of these is a function of the placenta?
A. To carry nutrients to the cells of the uterus
B. To deliver the blastocyst after childbirth
C. To develop into fetal reproductive tissues
D. To carry wastes away from the embryo
Is the virus considered a living creature? Justify the answer.
Answer:
Viruses are not living things.
Answer: No.
Explanation:
Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own they can do nothing until they enter a living cell. Without cells, viruses would not be able to multiply.
name the nucleus of the thalamus for conscious sensation
Explanation:
Relaying limbic sensory and motor signals to the cerebral cortex, Regulating consciousness,sleep, alertnesswhich situation show a nonrenewable resource in use ?
Answer:
Nonrenewable energy resources include coal, natural gas, oil, and nuclear energy. Once these resources are used up, they cannot be replaced, which is a major problem for humanity as we are currently dependent on them to supply most of our energy needs.
Explanation:
I think it will be the answer
Which of the following is BEST for the environment?
A: Reduce
B: Reuse
C: Recycle
D: Throw away
Answer:
C, recycle, but if I could choose two it would be reuse.
Reasoning:
Reusing things and recycling things are both useful for the community.
A famous case study in the united states describes how a very polluted lake was able to be remediated and is now used for recreation by many people which lake was this?
A: Lake lanier in Georgia
B: Lake Washington in Washington
C: Lake Tahoe in Devada
D: Lake Apopka in Florida
Lake Tahoe in Devada suffered from a severe eutrophication damage until control and remediation activities were carried out. Option C is correct.
What is eutrophication?
The term eutrophication refers to the biological process produced in water by an oversupply of nutrients or organic matter.
Human pollutive activities are closely related to this artifical eutrophication and, in several cases, are the cause.
Nutrients, mainly compounded with nitrogen or phosphorous, favor phytoplankton multiplication, especially cyanobacteria. Primary productivity enhances due to the sharp increase in these microscopic organisms.
The overgrowth impedes light reach deeper areas, affecting the biota living there. Sedimentation is caused by the death of plants and algae that sink to the bottom. These sediments rich in organic matter suffer decomposition in the presence of oxygen.
When oxygen disappears, anaerobic bacteria act and produce fermentation.
Both processes, phytoplankton overgrowth on the surface and fermentation on the bottom, originate toxic compounds that damage the animals.
Animals die, creating more sediments in the bottom where there are anaerobic conditions.
Decomposition and fermentation processes increase, producing a bad smell.
This whole cycle continues as long as cyanobacteria are present.
Among the main human activities responsible for eutrophication we can mention tourism, agriculture and the cattle industry, and the lack of controlled organic waste treatment.
This what occurred in the Lake Tahoe, in Devada, after the impact caused by tourism, deforestation, and the cattle industry.
This lake suffered from a severe eutrophication damage until control and remediation activities were carried out.
The correct option is C. Lake Tahoe in Devada.
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What do we call when there is loss of water from plants surfaces, especially in minute surface pores of stomata in leaves
What are the advantages and disadvantages of genetically modified organisms?
Answer: Advantages: better crop yield, healthier plants and animals, and more appealing food. Disadvantages: potential health issues, lower quality of life for animals, ecological disruption.
Explanation:
(This answer includes and focuses on the process of artificial selection as genetic modification)
Advantages
Better crop yield: genetic modification is commonly used in agriculture to select plants with better yields, allowing future plant generations to grow more and produce more.
Healthier plants and animals: plants and animals can be bred or otherwise modified to increase their disease resistance or to eliminate health issues found in earlier generations.
More appealing food: farmers can breed the plants with the best-tasting fruits to create an overall more appealing fruit. Scientists have also used direct genetic modification through genome editing to create new types of apples and other fruits.
Disadvantages
Potential health issues: most easily understood with dog breeds, which have been artificially selected and bred to have specific characteristics. This leads to some breeds being more susceptible to various health issues, namely respiratory disruption in those with flattened faces.
Lower quality of life for animals: seen in poultry farming, where chickens and other birds have been modified to be as big as possible. While this does provide a higher meat yield, it also causes the birds to live for an extremely short amount of time, most of which is spent being unable to move.
Ecological disruption: in the attempt to prevent insects from feeding on plants through genetic modification, the insect populations can be harmed by a lack of food sources. This can lead to other disruptions up the food chain, that, while typically minor, could eventually have larger consequences.
Answer: Advantages: better crop yield, healthier plants and animals, and more appealing food. Disadvantages: potential health issues, lower quality of life for animals, ecological disruption.
Explanation: (This answer includes and focuses on the process of artificial selection as genetic modification) Advantages Better crop yield: genetic modification is commonly used in agriculture to select plants with better yields, allowing future plant generations to grow more and produce more. Healthier plants and animals: plants and animals can be bred or otherwise modified to increase their disease resistance or to eliminate health issues found in earlier generations. More appealing food: farmers can breed the plants with the best-tasting fruits to create an overall more appealing fruit. Scientists have also used direct genetic modification through genome editing to create new types of apples and other fruits. Disadvantages Potential health issues: most easily understood with dog breeds, which have been artificially selected and bred to have specific characteristics. This leads to some breeds being more susceptible to various health issues, namely respiratory disruption in those with flattened faces. Lower quality of life for animals: seen in poultry farming, where chickens and other birds have been modified to be as big as possible. While this does provide a higher meat yield, it also causes the birds to live for an extremely short amount of time, most of which is spent being unable to move. Ecological disruption: in the attempt to prevent insects from feeding on plants through genetic modification, the insect populations can be harmed by a lack of food sources. This can lead to other disruptions up the food chain, that, while typically minor, could eventually have larger consequences.
What two types of movements do all planets have? What natural phenomena do they cause?
PLS I NEED IT FOR NOW
Answer: Rotation and revolution. Natural phenomena is day/night, seasons changing, tides changing, wind direction, ocean currents, precipitation.
Explanation:
Rotation is when an object spins on its own access, Revolution is when an object orbits or travels in an elliptical around another object. Like the earth revolves around the sun once every 365 days. The earth also rotates once every 24 hours.
For the natural phenomena, when the earth is moving as it does, there is a constant change in everything on the earth. Because of rotation, day and night happens. Because of revolution, seasons change. All of this makes different currents and weather.
Answer:
First question: orbit and spin
Orbit is around the sun, which causes the years to form
Spin is the planet itself, which causes the days to form.
Explanation:
What is the function of the dendrites of a neuron? A. They pick up signals and send them to the cell body. B. They make more neurons. C. They connect the neuron with other dendrites. D. They process information sent from other neurons
Answer: A. They pick up signals and send them to the cell body.
Explanation:
5. When people say "eat low on the food chain," what type of food are
they recommended
Are shoebills tertiary consumers?
Answer:
Yes, they are!
Explanation:
While inhabiting marshy areas, the Balaeniceps rex is found to be both a secondary and tertiary consumer preying on fish ranging in size from that of Large Mouth Bass to the small Pacific Herring, and other aquatic organisms such as frogs similar to the Red Eyed Tree Frog
Tapeworms enter the human stomach through food. They feed on nutrients in the stomach and cause infections in the body. What does this association depict?
Answer:
Tapeworms are a parasite of humans
Explanation:
Tapeworm infection is caused by ingesting food or water contaminated with tapeworm eggs or larvae. If you ingest certain tapeworm eggs, they can migrate outside your intestines and form larval cysts in body tissues and organs (invasive infection).
What happens to an area when there is too much rain or precipitation in that area?
Answer:
Explanation:
DN: When there is more rain than the soil can absorb, water will quickly run off into rivers and creeks to overwhelm culverts and storm drains and cause a flash flood. This depends on several factors including rainfall rate, soil type, terrain, and amount of moisture in the soil.
What is known about colony
collapse disorder?
O A. Mites are the sole cause of colony collapse disorder.
O B. Invasive species are implicated in colony collapse disorder.
O C. The factors responsible for colony collapse disorder are well known.
O D. Several factors are likely
contributing to colony collapse
disorder.
Answer:
O A. Mites are the sole cause of colony collapse disorder.
Consider the following data.
Rates for Cheetah Population from 2011 to 2012
Cause of change
2011
2012
Deaths
2
1
Births
5
4
Immigration
6
1
Emigration
8
3
Which would have to happen to keep the population growth of cheetahs in 2013 the same the previous years?
4 deaths, 7 births, 2 immigration, 6 emigration
3 deaths, 6 births, 5 immigration, 7 emigration
5 deaths, 2 births, 8 immigration, 3 emigration
1 deaths, 5 births, 3 immigration, 7 emigration
The one that would happen to keep the population growth of cheetahs in 1 death, 5 births, 3 immigration, and 7 emigrations. The correct option is d.
What is population analysis?The study of data such as births, deaths, wealth, or illness incidence that show the changing structure of human populations and the composition of a specific human population.
The components evaluated in a person's or a population's ecological footprint are food consumption, energy usage, transportation usage, and the amount of rubbish, including whether it has been recycled. I hope these are the answers and that they are useful.
The rate of the population of cheetahs as compared to the previous years is good. There is only one death and the birth rate is high.
Therefore, the correct option is d, 1 death, 5 births, 3 immigration, 7 emigrations.
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In Meiosis, what phase does crossing over, independent assortment, and non disjunctions occur? What are the two types of gametes produced in meiosis? How is genetic variation created in meiosis? What are the possible conditions that could arise is as a result of nondisjunction? What are the phases of meiosis?
Which of the following statements about the Hardy-Weinberg principle are true?
Select all that apply.
It assumes certain forces are acting on a population.
It is used to model genetic equilibrium.
It assumes certain forces are not acting on a population.
It is used to model gene flow.
Answer:
-It assumes certain forces are not acting on a population
-It is used to model genetic equilibrium
It assumes certain forces are not acting on a population and It is used to model genetic equilibrium.
Thus, Mendelian genetics are discussed in the context of populations of diploid, sexually reproducing individuals in the Hardy-Weinberg Theorem.
This theorem argues that allele frequencies in a population won't change from generation to generation under a particular set of assumptions.
The anticipated genotype frequencies are p2, 2pq, and q2 if a population has two alleles at a particular site and the allele frequencies are p and q. Once a population is in Hardy-Weinberg equilibrium, its frequency distribution won't vary from generation to generation.
Thus, It assumes certain forces are not acting on a population and It is used to model genetic equilibrium.
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B. What are two reasons that this layer can contain so much water vapor? (2 points)
The two reasons that this layer ( Troposphere ) will contain much water vapor are :
AltitudeAir compressibility The layer of the atmosphere with the most water vaporThe troposphere contains so much of the water vapor present in the atmosphere due to gravity and the compressibility air. As we move higher above the earth surface, the density of the atmosphere decreases rapidly. causing the majority of water vapor to be retained at the troposphere. which is lowest part of the atmosphere closest to the earth surface.
Hence we can conclude that The two reasons that this layer ( Troposphere ) will contain much water vapor are : Altitude and Air compressibility.
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Write the complementary DNA sequence
GAA TCG AGT
Answer:
CTT AGC TCA
Explanation:
Opposite DNA molecules pair with each other
Adenine (A) pairs to Thymine (T)
Cytosine (C) pairs to Gaunine (G)
The diagram shows a person holding a bow and arrow.
A person holds a bow and arrow with the arrow pulled back.
Which will most likely increase the kinetic energy in this system?
pulling farther back on the string
releasing the string
holding the arrow higher
decreasing the mass of the arrowm
Answer:
pulling further back on the string
Explanation:
I chose that because as for me answer 2 and 3 don't make sense but as for answer four I don't think that when you decrease the mass of the arrow this will increase the kinetic energy because for it to move faster I'll have to pull the string harder or to enlarge it ,so to increase the kinetic energy it is just determined by how I pull that string ."have I enlarged it or it is still loose."
How can wax worms impact the environment
Answer:
Waxworms are not an end-all solution to plastic waste, however. Wax larvae are pests for bees, naturally feeding off honeycomb and running the risk of reducing their populations – and those of plants and crops.
Which of the following correctly describes Photosynthesis?
Answer:
Photosynthesis is a plant that uses sunlight, water, and carbon dioxide to make sugar and oxygen.
Which statements describe how systems interact to produce the fight-or-flight response? Select the two correct answers. A The digestive system creates hormones that are sent to the muscular system, resulting in increased blood flow to muscles. B The endocrine system floods the circulatory system with hormones that affect several other body systems. C The muscular system sends receptors to the circulatory system to increase blood pressure and heart rate. D The digestive system interacts with the excretory system, supplying hormones to slow the production of urine. E The endocrine system supplies the lungs with insulin, allowing increased absorption of oxygen. F The circulatory system experiences a change in blood flow, which allows the muscular system to obtain additional glucose.
Answer:
B) The endocrine system floods the circulatory system with hormones that affect several other body systems.
Explanation:
Think of a topic of interest to you within the subject of Earth and Space Science. How might the daily activities of a scientist studying that topic or field differ from a chemist, physicist, or biologist? How might it be the same? In what ways would the scientist likely use the scientific method? Which types of data would they likely analyze most often?
Answer:
Lets take Natural disaster has a reference in point
Examples of natural disasters are Earthquakes and Volcanoes
Earthquake is as result of shocks and vibrations within the tectonic plates of the earth. Volcanoes are the eruption of molten magma from within the epicentre to the surface.
An Earth Scientist will want to consider the likelihood of these disasters occuring in a place. He will want to consider the past events , what are the composition of samples that are gathered , the geological terrain of th location.
A physicist on the other hand will be interested in the forces and how to measure the vibrations from earthquakes and earth tremors, what kind of load to resist the impact. It will be the same as the earth sciences in that they will want to gather enough data to mitigate against it impacts and consequences by proposing theories that are vital
The scientist will use the scientific methods to derive equations from data samples. Have samples from different location, observations, inference and reach a conclusion. Qualitative and quantitative data sets
Explanation:
Lets take Natural disaster has a reference in point
Examples of natural disasters are Earthquakes and Volcanoes
Earthquake is as result of shocks and vibrations within the tectonic plates of the earth. Volcanoes are the eruption of molten magma from within the epicentre to the surface.
An Earth Scientist will want to consider the likelihood of these disasters occuring in a place. He will want to consider the past events , what are the composition of samples that are gathered , the geological terrain of th location.
A physicist on the other hand will be interested in the forces and how to measure the vibrations from earthquakes and earth tremors, what kind of load to resist the impact. It will be the same as the earth sciences in that they will want to gather enough data to mitigate against it impacts and consequences by proposing theories that are vital
The scientist will use the scientific methods to derive equations from data samples. Have samples from different location, observations, inference and reach a conclusion. Qualitative and quantitative data sets
5 natural disasters
Insurance tech startup Descartes Underwriting has raised $120 million of fresh funds.The French firm helps businesses protect themselves against climate risks like cyclones.It raised the funds in a Series B round led by Highland Europe and Eurazeo.Natural disasters as a reference point
Examples of natural disasters are Earthquakes and Volcanoes
An earthquake is a result of shocks and vibrations within the tectonic plates of the earth. Volcanoes are the eruption of molten magma from within the epicenter to the surface.
An Earth Scientist will want to consider the likelihood of these disasters occurring in a place. He will want to consider the past events, what are the composition of samples that are gathered, and the geological terrain of the location.
A physicist on the other hand will be interested in the forces and how to measure the vibrations from earthquakes and earth tremors, and what kind of load to resist the impact. It will be the same as the earth sciences in that they will want to gather enough data to mitigate against its impacts and consequences by proposing theories that are vital
The scientist will use scientific methods to derive equations from data samples. Have samples from a different location, observations, inference, and reach a conclusion. Qualitative and quantitative data sets
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8. A soft-drink bottle resoNtes as air is blown across its top. What happens to the resoNnce frequency as the level of fluid in the bottle decreases?
PLEASE ANSWER 60 POINTS
Which is an example of genetic drift?
A. Artificial selection creates vegetables resistant to insects.
B. Allele frequencies change randomly each generation.
C. Females choose mates, resulting in large males.
D. Polygenic traits change due to directional selection.
Answer:
Allele frequencies change randomly each generation is the example of genetic drift.
How many ATP are used in the first half of glycolsis
How could you tell whether a given sequence was DNA or mRNA?
Was it easier to decode messages written in DNA or in mRNA sequences?
Which cellular enzymes or machines are you imitating when you "transcribe" DNA into mRNA?
Which cellular enzymes or machines are you imitating when you "translate" mRNA into a chain of amino acids?
What else needs to happen in a eukaryotic cell between the processes of transcription and translation?
In step 5, how did different mutations affect the amino acid sequence that was encoded?
Explain why some single nucleotide mutations affect an amino acid sequence and some single nucleotide mutations do not.
Explain why nucleotide insertions and deletions affect the amino acid sequence so profoundly.
Why could your secret message include only 20 of the 26 letters of the alphabet?
Did you find that it was difficult to work with only these letters?
Answer:
1. You could tell whether a given sequence was DNA or mRNA because of Uracil and Thymine base differences in both
2. Answers may vary up to you, but messages are easier to decode written in DNA
3. You are imitating RNA polymerases.
4. You are imitating RNA polymerase once again
5. The RNA strand is delivered to start the process of translation; RNA>>Protien
6. Different mutations affect different amino acid sequences because they alter the code which makes it un-easy to decode the sequence
7. Some single nucleotide mutations affect an amino acid sequence depending on what mutation it is causing. Some single nucleotide mutations do not do this because they aren't as severe and they don't cause codons to mix up.
Answer:
1
ADNA sequences use the nucleotides A, T, G, and C, while mRNA sequences use the nucleotides A, U, G, and C.
B It was easier to decode the messages written in mRNA sequences because these sequences could be translated directly into the amino acid sequence.
2
A The cellular enzyme that carries out transcription is RNA polymerase.
B The cellular machine that carries out translation is the ribosome, which is composed of both rRNA and ribosomal proteins.
C In a eukaryotic cell, an mRNA transcript often has additional untranslated regions and a poly-A tail. A eukaryotic mRNA transcript would need to be transported from the nucleus to the cytoplasm before it could be translated.
3
A Some amino acids are encoded by several codons. If a single nucleotide mutation still encodes for the same amino acid, the resulting amino acid sequence would not be affected. This happens most often with nucleotides in the third position of a codon.
B If a single nucleotide mutation changes the amino acid encoded, the resulting amino acid sequence would be affected. This happens most often with nucleotides in the first and second positions of a codon.
C Nucleotide insertions and deletions cause frameshift mutations, which change the reading frame of translation and will encode completely different amino acids from that point forward.
4
A There are only 20 canonical amino acids, so the letters B, J, O, U, X, and Z are not used as one-letter codes.
B It was a little difficult to not use the letters B, J, O, U, X, and Z at first, but there are messages to write without these six letters.
Explanation:
What would the possible blood types of a child be if his parents were type AO and type BB? Please give detailed explanation
A person's blood type is determined by the combination of three alleles IA, IB, and i. The possible blood types of the child born from A0 and BB parents are AB and B.
What is the ABO group?
The I gene determines the blood type of a person. This is a triallelic gene that expresses complete dominance and codominance.
Alleles
IA allele is dominant over the i allele. The person presents A type of antigens.IB allele is dominant over i. The person presents B type of antigens.IA and IB alleles express codominance. In this case, the person presents both types of antigens, A and B.i is the recessive allele. The person does not present any antigen.Genotypes and Phenotypes
H0m0zyg0us dominant or heter0zyg0us Individuals IAIA or IAi will express the A blood type.H0m0zyg0us dominant or heter0zyg0us Individuals IBIB or IBi will express the B blood typeIndividuals with h0m0zyg0us recessive genotype ii will express the 0 blood type.Individuals carrying IA and IB alleles will express the AB blood type.Now, in the exposed example
Cross: A0 x BB
Parentals) IAi x IBIB
Gametes) IA i IB IB
Punnett square) IA i
IB IAIB IBi
IB IAIB IBi
F1) 1/2 = 50% of the progeny is expected to be IAIB and have AB blood type
1/2 = 50% of the progeny is expected to be IBi and have B blood type
The possible blood types are AB and B.
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