A protective device to provide safe breathing air to a user in a hostile or dangerous atmosphere is known as?
Answers
A protective device to provide safe breathing air to a user in a hostile or dangerous atmosphere is known as respiratory protection.
Respiratory protection- A specific kind of Personal Protective Equipment (PPE) called Respiratory Protective Equipment (RPE) is intended to guard the wearer against breathing in harmful compounds found in the air at work.
Atmosphere- The covering of air that surrounds the Earth is called the atmosphere, and it mostly consists of nitrogen and oxygen. There are traces of other gases in the atmosphere as well, including carbon dioxide, neon, helium, etc.
To know more about the respiratory protection, click on the below link.
https://brainly.com/question/28411400
#SPJ4
Related Questions
Ben observes that his car will not start. What is a good testable hypothesis? The car will not start. The car is green. The car is out of gasoline. The car has 4 tires.
Answers
Answer:
The car is out of gasoline
Explanation:
amphibians have successfully invaded the land; however, most are tied to water for
Answers
Answer: Reproduction
Explanation: For the majority of extant amphibians, their single strongest remaining tie to the aquatic environment is reproduction.
During translation the type of ribonucleic acid is responsible for.
Answers
Answer:
The ribonucleic acid is responsible for delivering amino acids to help make a protein.
Explanation:
The removal of undigested remains of food from the alimentary canal is called
Answers
Answer:
Egestion
Explanation:
This is because Egestion is the process where undigested food remains is removed or discharged from the alimentary canal as faeces. In Egestion, the food that refuse to digest form faeces and it is remove from the body through defecation. While exrection is the removal of wastes products like urine from the alimentary canal.
Fertile individuals that readily move from one geographic location to another contribute to.
a) genetic drift
b) gene flow
c) founder effect
d) bottleneck effect
Answers
the absence of tryptophan (trp) in e. coli a) produces an active trp repressor b) causes tryptophan to act as an inducer of transcription of the trp operon c) prevents transcription of the trp structural genes d) none of the above is correct
Answers
The absence of tryptophan (trp) in E. coli produces an active trp repressor. A trp operon is a group of genes in E. coli that are involved in tryptophan biosynthesis.option (A)
The trp repressor is a protein that binds to the operator region of the trp operon and prevents transcription of the structural genes. When tryptophan is absent, the trp repressor is unable to bind to the operator, resulting in the activation of transcription of the trp operon. Thus, the correct answer is (a) produces an active trp repressor.
Tryptophan (Trp) is an amino acid, which is an essential component of proteins and is important for many biological processes. It is one of the 20 amino acids that are used to build proteins in living organisms. In addition to its role as a building block for proteins, tryptophan is also a precursor for several important biological molecules, including serotonin, melatonin, and niacin.
Learn more about tryptophan (trp)
https://brainly.com/question/29748511
#SPJ4
In which part of the cell do ribosomes perform protein synthesis? (1 point)
lysosome
cytoplasm
vacuole
nucleus
Answers
According to the research, the correct option is nucleus. The part of the cell where ribosomes perform protein synthesis is in the nucleus.
What is the nucleus?It is a membranous structure that is located both in the plant cell and in the animal cell that houses most of the material belonging to genetics.
In this sense, it exerts control over the activities of cells and to preserve the integrity of genes, DNA molecules, proteins and ribosomes are organized in it, which will serve for protein synthesis.
Therefore, we can conclude that according to the research, the correct option is nucleus. The part of the cell where ribosomes perform protein synthesis is in the nucleus.
Learn more about ribosomes here: https://brainly.com/question/17128696
#SPJ1
Can you help me I stressing out like every time I send it a link pops up like I want he answer
Answers
Answer:
I-3, II-2, III-2 are all definitely carriers
It is possible find the genotype of individual II-1 because the he inherited his father's y which does not carry the trait (because only x chromosomes have the trait) and his mother's x chromosome, but the mother is not a carrier.
which one of these coagulation modifier drugs has a mechanism of action that is to lyse a thrombus that has already formed? match it to its subclass.
Answers
The coagulation modifier drug that has a mechanism of action to lyse a thrombus that has already formed is a fibrinolytic drug.
The mechanism of action of fibrinolytic drugs is to dissolve or break down clots that have already formed by targeting and dissolving the fibrin protein that holds the clot together.
So, the coagulation modifier drug with a mechanism of action that is to lyse a thrombus that has already formed is called a "thrombolytic" drug.
Thrombolytic drugs work by breaking down blood clots and restoring blood flow in the affected vessels. A well-known example of a thrombolytic drug is a tissue plasminogen activator (TPA).
Learn more about tissue here
brainly.com/question/17664886
#SPJ11
know the following direction-related terms: anterior/posterior; superior/inferior; proximal/distal; rostral/caudal know the different type of neurons and glial (aka neuroglia) cells in the pns and cns, as well as their function know the organizational structure of skeletal muscles and nerves understand how a neuron interacts with a skeletal muscle fiber to cause a contraction; know the importance of the neuromuscular junction know the two types of bone ossification, and when each occurs during growth and development; which bones are developed through each physiological method know the difference compact and spongy bone, including location of each. where would you expect to find red bone marrow? know the clinical significance of the following: osteoporosis, osteomalacia, osteosarcoma, and arthritis know the clinical significance of atherosclerosis. how is this formed? know the purpose of a lymph node. what is a sentinel node?
Answers
To compare patrol lymph node biopsy results for overall survival (OS) and disease-free survival (DFS) (SNB).
Underarm or axilla axillary lymph nodes are present. The lymph nodes that breast cancer is most likely to spread to initially are known as sentinel lymph nodes. In order to determine whether breast cancer has progressed to the axillary lymph nodes, sentinel node biopsy is employed. Many patients experience no negative effects following a sentinel node biopsy. Some patients experience fatigue and soreness or injury at the cut (incision). Your breasts and underarms might only have slight swelling. Comparing sentinel lymph node biopsy (SNB) and elective neck dissection (END) for the surgical management of cT1-2N0 oral cavity squamous cell carcinoma in terms of overall survival (OS) and disease-free survival (DFS) (OCSCC).
Learn more about Sentinel lymph nodes here:
https://brainly.com/question/28527960
#SPJ4
Please help me with this
Answers
Answer:
Its a semipermaeble mambrane
Explanation:
Semipermeable membrane is a type of biological or synthetic, polymeric membrane that will allow certain molecules or ions to pass through it by diffusion.
From one trophic level to the next, only_(a) % of the energy is transferred. The other
(b)___% is used by the organisms getting consumed during its life processes.
A. (a) 25, (b) 75
B. (a) 10, (b) 90
C. (a) 75, (b) 25
D. (a) 90, (b) 10
Answers
Answer:
B. (a) 10, (b) 90
Explanation:
The ecosystem consists of a flow of energy that unidirectional and there is always a decrease in the amount of energy when it's transferred from one place to another. Such as in the food chain there is a transfer of 10% amount of energy which is used by the various organisms and 90% of energy is lost between the tropic levels in form of heat and respiration.The WR used to calculate sievert is a measure of what aspect of the radiation being measured?
A. kVp
B. Half value layer
C. Relative biologic effectiveness
D. Ionization potential
Answers
The WR used to calculate sievert is a measure of the relative biologic effectiveness (RBE) of the radiation being measured (Option C)
What is a Sievert?A sievert (Sv) is the International System of Units (SI) unit for calculating the health effects of low levels of ionizing radiation on the human body. The Sv scale is a measure of the biological effects of ionizing radiation.
The RBE of radiation is a measure of the radiation's biological harm in comparison to that of X-rays or gamma rays, which have an RBE of 1. The WR is a quantity that is proportional to the RBE of the radiation being measured, with the goal of accounting for the potential for biological harm caused by a given radiation dose.
THus, the correct option is C.
Learn more about sievert: https://brainly.com/question/31830211
#SPJ11
Name the organelles.
Answers
Answer:
A: Nucleus
B: Cytoplasm
C: Vacuoles
D: Cell Membrane
E: Mitochondria
Explanation:
which niche in a community would have the most number of organisms? the fewest?
Answers
Explanation:
Communities with the lowest species richness lie near the poles, which get less solar energy and are colder, drier, and less amenable to life. This pattern is illustrated below for mammalian species richness (species richness calculated only for mammal species, not for all species).
Which condition would most likely knock a population out of Hardy-Weinberg equilibrium?
Responses
no mutations
no mutations
a large population size
a large population size
no migration
no migration
selective mating
Answers
Selective mating would most likely knock a population out of Hardy-Weinberg equilibrium. This is because Hardy-Weinberg equilibrium assumes random mating, where every individual in the population has an equal chance of mating with any other individual.
What does Hardy-Weinberg law state?The Hardy-Weinberg law states that in a large, randomly mating population that is not subject to the influence of evolutionary forces (such as natural selection, mutation, migration, or genetic drift), the frequencies of alleles and genotypes will remain constant from one generation to the next.
Who gave the Hardy-Weinberg law, and what is it based on?The Hardy-Weinberg law is based on several assumptions, including large population size, random mating, no mutations, no migration, and no natural selection. The law is named after G. H. Hardy and Wilhelm Weinberg, who independently formulated it in 1908.
To learn more about mutation, visit here:
https://brainly.com/question/13923224
#SPJ1
Answer: Selective mating
Explanation:
I took the test
TRUE/FALSE. if athletes consume protein supplements in excess of their energy needs, their body will convert the extra amino acids into fat for storage in adipose tissue.
Answers
Answer:
True
Explanation:
Extra protein doesn't get stored. Excess amino acids get converted to carbohydrate or fat.
droplets or small particles contain infectious agents that remain effective over time and distance in the air. is the meaning of ___
Answers
Droplets or small particles contain infectious agents that remain effective over time and distance in the air, is the meaning of airborne transmission.
What is a pathogen?A pathogen can be defined as any group of living microorganisms that are capable of causing diseases and harm to their host. In Science, some examples of pathogen include the following:
WormsProtozoaInfectious proteins (prions).FungiVirusBacteriaWormsWhat is air pollution?Air pollution can be defined as the contamination of an environment or the atmosphere, especially through an emission of poisonous, hazardous, and toxic chemical compounds (substances) by humans and various industries or factories.
Generally speaking, airborne transmission such as tuberculosis occurs when droplets or small particles of infectious agents remain effective or potent over time and distance in the atmosphere (air).
Read more on pathogens here: brainly.com/question/1406024
#SPJ1
Select examples of improvements resulting from genetic modifications of plants. Herbicide resistant plants Insect resistant plants Plants producing fruits that contain insulin or human growth hormone Plants producing antibiotics for human use Nutrient enriched plants such as golden rice
Answers
Examples of improvements resulting from genetic modifications of plants are Herbicide-resistant plants, Insect-resistant plants, and Nutrient enriched plants such as golden rice. Options A, B, and E are the answers.
Genetic modifications of plants have resulted in many improvements, including herbicide-resistant and insect-resistant plants. These modifications allow for more effective and efficient crop management, reducing the need for harmful pesticides and increasing crop yields.
Another example of a genetic modification that has been made to plants is the creation of nutrient-enriched varieties, such as golden rice. This rice has been modified to contain higher levels of vitamin A, which can help combat vitamin A deficiency in regions where rice is a staple food.
Learn more about genetic modifications at
https://brainly.com/question/21411587
#SPJ4
The question is -
Select examples of improvements resulting from genetic modifications of plants.
a. Herbicide-resistant plants
b. Insect-resistant plants
c. Plants producing fruits that contain insulin or human growth hormone
d. Plants producing antibiotics for human use
e. Nutrient enriched plants such as golden rice
Genetic modifications of plants have led to numerous improvements, some of which include:
1. Herbicide resistant plants: These are plants that are genetically modified to withstand herbicides, allowing farmers to use herbicides to kill weeds without harming the crops.
2. Insect resistant plants: These plants have been modified to produce toxins that are harmful to insects, which reduces the need for pesticides and helps to increase crop yields.
3. Plants producing fruits that contain insulin or human growth hormone: These are plants that have been modified to produce human hormones or proteins, which can be used for medical purposes.
4. Plants producing antibiotics for human use: Some plants have been modified to produce antibiotics, which can be used to treat bacterial infections in humans.
5. Nutrient enriched plants such as golden rice: Golden rice is a type of rice that has been modified to produce beta-carotene, which is converted into vitamin A in the human body. This has the potential to help combat vitamin A deficiency in populations that rely heavily on rice as a staple food.
In summary, genetic modifications of plants have resulted in various improvements that can benefit both farmers and consumers. These modifications can help to increase crop yields, reduce the use of harmful pesticides, and produce plants with specific health benefits.
To know more about Genetic modifications click here:
https://brainly.com/question/21411587
#SPJ11
Somewhere in the middle of a gene are the letters AAG. If we insert a letter to make it AACG, the resulting PROTEIN will most likely
A)
have many amino acids changed.
B)
be one amino acid longer.
C)
not exist; no protein will be made.
D)
be exactly the same.
E)
have only one amino acid changed.
Answers
If we insert a letter in the middle of a gene, changing the sequence from AAG to AACG, the resulting protein will most likely have only one amino acid changed. The correct option is E).
Here's a step-by-step explanation:
1. The DNA sequence AAG represents a codon, which is a set of three nucleotides that codes for a specific amino acid during protein synthesis.
2. By inserting an additional nucleotide (C) to create AACG, a frameshift mutation occurs. This means that the reading frame of the DNA sequence has shifted, altering the sequence of codons from that point onward.
3. As a result of the frameshift mutation, the new codon sequence might code for different amino acids compared to the original sequence. However, the inserted nucleotide only directly affects one codon, which corresponds to one amino acid.
4. Therefore, in this specific case, the resulting protein will most likely have only one amino acid changed, compared to the original protein. This is because the mutation directly impacts a single codon, altering the amino acid it codes for.
To know more about gene refer here:
https://brainly.com/question/31121266#
#SPJ11
What are some applications of biotechnology?
Answers
Answer:
Health careAgricultureIndustrial uses of crops/other productsEnvironmental usesCredit goes to: wikipedia
I hope this helps!
Ten percent of the male of a large, randomly mating population are colorblind. A
repreentative group of 1000 from thi population migrate to a South Pacific iland, where there
are already 1000 inhabitant and 30 percent of the male are colorblind. Auming that HardyWeinberg equilibrium applie throughout ALL population, what fraction of male and female
can be expected to be colorblind in the generation immediately following the arrival of the
immigrant?
Answers
Percent females colorblind is 4% and percent males colorblind is 20% .
An X-linked recessive disease, colour blindness. A colour blind male has a defective gene on X chromosome i.e X'Y and a normal woman has no defective gene i.e XY. (X': faulty gene; X: healthy gene) marriage between a normal woman and a colorblind person. A male child receives one normal X chromosome from the mother and a Y chromosome from the father, or XY, if the child is male. Because there are no faulty genes on the X chromosome, the man has normal vision. A female kid inherits one normal X chromosome from the mother and an abnormal X' chromosome (XX') from the father.As a female progeny has defective gene only on one X chromosome its acts like carrier but she is not colour blind. A female must possess defective genes on both the X chromosomes to b colour blind.To know more about colour blind check the below link:
https://brainly.com/question/14645566
#SPJ4
The graph below shows the amount of CO2 (carbon dioxide) in the atmosphere throughout Earth’s history.
Which of the following claims is supported by the evidence in this graph?
A
The amount of CO2 in the atmosphere is currently decreasing at an extremely fast rate.
B
High amounts of CO2 in the atmosphere correspond to cold periods in Earth’s history, called ice ages.
C
The amount of CO2 in the atmosphere in 2018 was significantly higher than any other time in the past 800,000 years.
D
The amount of CO2 in the atmosphere from 1800 to 2018 increased at a slower rate than at any other point in the past 800,000 years.
Answers
Explanation:
is there a graph to be shown
invasive species are able to survive and thrive in new environments because of all of the following except:
Answers
The statement "except" is missing from the question. If you provide the option that is excepted, I can assist you in identifying the correct answer.
Invasive species are able to survive and thrive in new environments due to various factors. However, there are certain factors that invasive species rely on for their success, and these factors can be listed as follows:
Lack of natural predators: Invasive species often have no natural predators in their new environment, which allows them to reproduce and spread rapidly without facing significant predation.
Rapid reproduction and growth: Invasive species often have high reproductive rates and are capable of rapid growth, enabling them to outcompete native species for resources such as food, water, and space.
Generalist traits: Invasive species often possess traits that make them adaptable and able to exploit a wide range of resources. They can thrive in various environmental conditions and outcompete native species that may have more specialized requirements.
High dispersal ability: Invasive species often have efficient mechanisms for dispersal, such as long-distance travel facilitated by human activities, wind dispersal, or adaptations for rapid colonization of new areas.
Therefore, the statement "except" is missing from the question. If you provide the option that is excepted, I can assist you in identifying the correct answer.
To know more about Invasive species, visit:
https://brainly.com/question/9436502
#SPJ11
What is one thing people can do to reduce the amount of carbon in theatmosphere?A. Plant more trees.OB. Drive longer distances.OC. Use more electricity.OD. Burn more fossil fuels.
Answers
Reduction of carbon in the atmosphere
Plants consume carbon dioxide (CO2) in the process of photosynthesis as a substrate to form their food, i.e, sugars such as glucose, following the formula:
6 CO2 + 6 H2O + light --
you have dimples like your mom. your other siblings do not. how can you explain this? select all that apply. responses a children inherit two copies of each chromosome.children inherit two copies of each chromosome. b children inherit one copy of each chromosome.children inherit one copy of each chromosome. c genes are segments of dna located on chromosomes that code for traits.genes are segments of dna located on chromosomes that code for traits. d one chromosome comes from the mom and one from the dad.one chromosome comes from the mom and one from the dad. e traits like dimples are random mutations and are not inherited.
Answers
a. Children inherit two copies of each chromosome. c. Genes are segments of DNA located on chromosomes that code for traits. d. One chromosome comes from the mom and one from the dad.
The presence or absence of dimples is a trait that is influenced by genetic inheritance. To explain the situation where you have dimples while your siblings do not, the following factors apply:
a. Children inherit two copies of each chromosome: Each person receives one copy of each chromosome from their mother and one copy from their father. This includes the chromosomes carrying the genes responsible for dimples. Differences in the genetic information received from your parents can account for the presence of dimples in you but not in your siblings.
c. Genes are segments of DNA located on chromosomes that code for traits: Genes are the units of inheritance, and they are located on chromosomes. Variations in the specific genes related to dimples can explain why you have them while your siblings do not.
d. One chromosome comes from the mom and one from the dad: In sexual reproduction, you inherit one chromosome carrying the genes related to dimples from your mother and one from your father. Differences in the combination of genes received from each parent can result in variations in traits between siblings.
Option e is not applicable in this context since traits like dimples are generally inherited and influenced by genetic factors rather than being random mutations.
Overall, the combination of inheriting two copies of each chromosome, the presence of genes on those chromosomes that code for traits like dimples, and the variation in genetic information received from each parent can explain why you have dimples while your siblings do not.
To learn more about chromosomes, here
https://brainly.com/question/30077641
#SPJ4
PLEASE HELP ASAP WILL RANK BRAINLIEST!!!!
Answers
Answer:
C
Explanation:
The rise in the lines mean that the enzymes still work properly at different rates, but the peaks represent the temperatures and ph they work best at
Your neighbor has a fish pond. One day she mentions that she doesn’t think her fish are getting enough oxygen. Which would you recommend she add to her pond system to speed up the transfer of oxygen from the atmosphere?a) Waterfall with multiple streams
b) A deep water mixer
Answers
To speed up the transfer of oxygen from the atmosphere to her fish pond, I would recommend that she add a waterfall with multiple streams (option a).
Waterfalls create aeration and turbulence in the water, increasing the surface area exposed to the atmosphere. This increased surface area promotes oxygen exchange, allowing more oxygen to dissolve into the water.
The cascading water also adds oxygen-rich air bubbles to the pond, further enhancing oxygenation. The multiple streams in the waterfall increase the agitation and create additional oxygen diffusion points.
On the other hand, a deep water mixer (option b) may improve water circulation within the pond, but it may not significantly enhance oxygen transfer since it focuses more on internal mixing rather than interaction with the atmosphere. Therefore, the waterfall with multiple streams is the better choice for improving oxygen levels in the fish pond that is option a.
To know more about oxygen refer to-
https://brainly.com/question/13905823
#SPJ11
"At Jane's school, it was against the rules to have your phone on you. Phones were to be kept off and in your locker." Which words give us clues that the setting is the present time?
1. Jane's school
2. Phones were to be kept off
3. against the rules
4. locker
Answers
Answer:
Phones were to be kept off
are lymphatic capillaries as permeable as blood capillaries adn why
Answers
Lymphatic capillaries are generally more permeable than blood capillaries, and there are several reasons for this difference in permeability:
Endothelial Overlapping: The endothelial cells that form the walls of lymphatic capillaries loosely overlap each other, forming flap-like structures. Gaps in Cell Junctions: Lymphatic capillaries also have larger gaps between their endothelial cells compared to blood capillaries. Absence of a Basement Membrane: Blood capillaries are lined by a basement membrane, which acts as an additional barrier for the passage of molecules.The increased permeability of lymphatic capillaries allows them to efficiently collect and transport various substances, including excess fluid, proteins, fats, and immune cells, from the interstitial spaces in tissues. This fluid, known as lymph, is then carried through the lymphatic vessels and eventually returned to the bloodstream.
To learn more about Lymphatic capillaries, visit here
https://brainly.com/question/29829621
#SPJ11