Is the introduction of contaminants into a natural environment that causes instabilitying organisms and the physical environment
interact in an immense and complicated web of relationships.
O a Chemicalsubstances
Ob pollution
Oc. Environment

Answers

Answer 1

Answer:

ℴℴℴ

Explanation:

ℯℯ ℴ ℯ ℊ


Related Questions

discuss the reaction in tricarboxylic acid cycle​

Answers

The tricarboxylic acid cycle​ also known as the Kreb's cycle consists of eight cycle wherein a molecule of acetylCoA is used to produce three NADH, one FADH2 and one GTP/ATP molecule.

What is the tricarboxylic acid cycle?

The tricarboxylic acid cycle is a sequence of reactions in which acetylCoA molecules from the glycolytic pathway are used to produce the reducing equivalents NADH ad FADH2 which are used to produce ATP in the electron transport chain.

The tricarboxylic acid cycle​ also known as the Kreb's cycle consists of eight cycle wherein a molecule of acetylCoA is used to produce three NADH, one FADH2 and one GTP molecule.

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PLEASE HELP ASAP PLEASE FAST

Answers

Answer:

D

Explanation:

the water passes through the semi permeable membrane

A geneticist finds that a strain of bacteria to produces a non-functional sigma factor. Which among the following steps in transcription would most likely be first affected?

A.Assembly of RNAP onto the DNA strand

B.Identification and binding of RNAP on to the promoter sequence

C.Conversion of open initiation complex to closed initiation complex

D.Synthesis of RNA after the formation of open initiation complex

Answers

Answer:

The correct answer is - B. Identification and binding of RNAP onto the promoter sequence.

Explanation:

Bacterial RNA polymerases have subunits known as Sigma factors responsible for the identification and specificity of promoter binding of RNAP and regulate the efficiency of RNA synthesis during transcription is initiated.

These bacteria producing the nonfunctional subunits of RNA polymerase or sigma factor will be unable to identify and tightly bind to promoter elements that are RNAP.

what is full course meal?​

Answers

Answer:

Full course meals are made up of three courses: an appetizer, main dish, and dessert. Also known as a three-course meal or a standard course meal, you will sometimes see restaurants offering a full menu with these three items. You can add more courses to a full course meal.

Explanation:

If the observed genotypes in a given population do not fit those predicted by the Hardy-Weinberg equation, it could mean that..

Answers

Answer:

C

Explanation:

gene greatly affects the survival of organisms and if there is a change in the genetic makeup if this organism it leads to mutation

White Leaf Disease is a devastating disease that
affects sugar cane crops in Thailand and has become a
major issue for farmers. The disease starts with a white
line forming in the center of the sugar cane's leaves,
which can change in size and shape as it develops.The sugar cane's new leaves will become increasingly whiter, often having stunted growth, and resulting in the sugar cane being less productive than the non-
infected plants, Scientists are trying to determine
what organelle must be damaged to produce the
observed results,

Answers

White leaf disease is caused by phytoplasma. The disease infects the leaves and create white spots in them.

The farmers in Thailand are facing this issue with sugarcane crops. The organisms infect phloem tissues in sugar cane and cause the leaves to turn white.

The size and shape can change as sometimes there are fine white lines created while sometime there are white spots.

Scientists are trying to deal with such disease and an spray of liquid copper has been found beneficial to treat this disease. The white spot fungus stops to spread with the spray.

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Explain how a bottleneck event can enrich recessive traits in the genetics of a population.

Answers

Answer

A bottleneck event severely reduces the fraction of a species able to pass on their genes to offspring. Any once rare recessive traits present in the surviving breeding population are passed to a larger fraction of the total population of offspring, thereby enriching those recessive traits in the total gene pool .

Bottleneck events can limit variation if the dominant allele population gets wiped out for any reason and the recessive allele can appear to be in the majority however this does not shows the actual makeup of the population.

What is bottle neck effect?

The bottleneck effect is defined as a reduction and subsequent increase in a population's size affects the distribution of genetic variation among its individuals.

Examples of bottle neck effect  is when the northern elephant seals have reduced genetic variation likely because of a population bottleneck humans imposed on them in the 1890s. Hunting reduced their population size to as few as 20 individuals at the end of the 19th century.

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ASAP
A species of Coral snake has a red, yellow and black stripe pattern. One
gene controls if the stripes are thick or thin. Thin (T) is dominant over
thick (t). If two snakes heterozygous for this gene are crossed, what will
be the genotype(s) of their offspring? You may need to use a Punnett
square to answer the question.
Question Progress
OA. TT and Tt
B. TT, Tt, and tt
C. TT and tt
D. All Tt

Answers

B . , because I remember this

The genetic attributes of the organism are determined by the genotype. The cross of the heterozygous genes in Coral snakes results in offsprings with TT, Tt, and tt. Thus, option B is correct.

What are genes?

Genes are the functional and physical basis of the inheritance that passes from generation to offspring with various traits and attributes. The gene contains a recessive and a dominant allele.

Heterozygous genes are represented as Tt as it contains one dominant and one recessive allele. The cross between the two heterozygous (Tt) Coral snakes is attached to the image below.

From the cross, it can be seen that 75 % of the coral snakes have thin strips while the 25 % of the species have thick strips. The ratios are:

Genotype = 1 : 2 : 1

Phenotype = 1 : 3

Therefore, option b. the genotype(s) of the offspring will be TT, Tt, and tt.

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the different between microspores and pollen grain

Answers

The key difference between microspore and pollen grain is that microspore is the small spore that develops into the male gametophyte in plants while pollen grain is the small grain that contains the male gametophyte.

If you were given the power to control the United States government and policy what changes would you make regarding the environment and how would you fund these? You can consider your response to the question and/or include other issues.

Answers

Answer:

i would probably fund different jails using taxes. there's absolutely no reason someone who accidently committed tax fraud should be sitting in the same cell as aconvicted murderer. & abd I would make harder consequences for hate crimes. like jail time.

How would you
change the hypothesis if mussels died in
both aquariums?

Answers

The new hypothesis could be that there is another alternative factor that is negativey afecting dwarfs survivorship.

The previous hypothesis of high levels of phosphate killing mussels is not necessarily disproved.  But the death of mussels from both the control and the treatment groups might be related to one of the controlled variables that could be actually afecting them.      

----------------------

Probably different levels of phosphate are also affecting invididuals´ survivor rates. However, the fact that mussels from all the aquariums died suggests that there is something else going on that caused the death of all the individuals.    

The control group is used to identify any other factors influencing the results obtained in the study, apart from the modified variables of the treatment.  Individuals of the control group are selected from the same population as the treatment group. These two groups are identical in all aspects except for the independent variable, which changes in the treatment group but remains constant in the control group.

We know that mussels in this experiment were taken from the same population and grown under the same controlled conditions. Only the treatment group received phosphate, but all mussels died, not only the ones that receive phosphate. This result turns to be useful because it is indicating that there is another variable that is killing mussels. Phosphate might be a cause of death, but there is also something else. So the researchers should pay attention to the controlled variables, such as water quality, temperature, pH, food supply, light exposure, or others.  

These variables might be reflecting the real conditions under which mussels live. The results tell that one of these is related to individual death and could be a consequence of climate change or soil use, among other causes.    

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When considering proteins that help control the cell cycle:
Stimulating proteins are encoded by tumor suppressor genes and inhibitory proteins are encoded by
proto-oncogenes.
O True
O False

Answers

True


oncogene are mutated forms of pronto-oncogene and can lead to over stimulation of the cell cycle.


1) P53 is a inhibitory protein

You classified organisms based on anatomical structure and development. Scientists also use DNA to classify organisms. Considering the basic process of evolution, why do you think it’s important to also consider DNA and gene patterns during the classification of organisms?

Answers

Answer:

By studying genetics and DNA, we can get the best idea of how species are related to each other, and therefore how to classify them. The genetic code of a species is not fixed, however. It changes over time! This is why we also need to factor in evolution.

It is important to also consider DNA and gene patterns during the classification of organisms because,

Through genetics and DNA study, we can get the idea of how species are related to each other and how to classify them. The genetic code of a species is not fixed. So, it need in evolution.

How organism classified ?The organism classified on the basis of shared characteristics.The classification of living organism includes seven levels, kingdom, phylum, classes, order, families, genus and species.

What is evolution?It is witness in the living species and change in heritable traits of biological population over successive generation.The process of development of complex organism from simpler one with time is called an evolution.

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Transfusion of type AB blood would introduce both A and B ______________ which would be ______________ monosaccharides type

Answers

Answer: hello your question is poorly written below is the  question

answer:

Tetrasaccharides,  Recognized, Triggers, Type B, Type A, Type O, Not recognize, Tetrasaccharides

Explanation:

Both A and B Tetrasaccharides  which would be Recognized as foreign and Triggers an immune reaction in recipients lacking either the A saccharide Type B or B Type A or both Type O .  meanwhile the type AB blood would contain both A and B and would Not recognize those Tetrasaccharides as foreign

what is psychasthenia? Please don't copy and paste from g,o,o,g,l,e.

Answers

Answer:

Psychasthenia is a neurotic state characterized especially by phobias, obsessions, or compulsions that one knows are irrational.

Which of the following counteracts the movement of bicarbonate ions from the RBC?
A) chloride shifting
B) the Haldane effect
C) release of hydrogen ion
D) the Bohr effect​

Answers

Answer:

A) chloride shifting

Explanation:

because in movement of bicarbonate ion, there. is exchange of carbonic acid and chloride ion in RBC which is called chloride shift.

Answer: A. chloride shifting

Please help me with this.

Answers

Answer:

D

Explanation:

Gene pool is the total genetic diversity within a population or species

Answer:

D

Explanation:

hope it helps.

What theory explains why the Uranian system is on its side?

Answers

Answer:

Astronomers have always assumed that Uranus must have been knocked onto its side by a collision. Now a new idea suggests that the planet's remarkable tilt could have another explanation.

Explanation:

I just know it

Answer:

Astronomers have always assumed that Uranus must have been knocked onto its side by a collision. Now a new idea suggests that the planet’s remarkable tilt could have another explanation.

by Emerging Technology from the arXivarchive page

December 3, 2009

One of the great mysteries of our Solar System is why Uranus is tilted on its side. Surely, if the solar system formed from the same rotating cloud of dust and gas, then all the bodies within it should rotate in the same way. And yet Uranus’ axis of rotation lies at 97 degrees to the plane of the solar system.

is the citric acid cycle the same thing as fermentation​

Answers

Answer:basically

Explanation:

no because the net yields of ATP, NADH and FADH2 during glycolysis, pyruvate oxidation and the citric acid cycle. ... In the absence of oxygen, pyruvate undergoes fermentation (either ethanol or lactate, depending on the organism). Fermentation does not generate any additional energy, however, NAD+ is regenerated.

Suppose a researcher introduces a mutation into the glucosidase domain of the mammalian glycogen debranching enzyme. The mutation inhibits the activity of the glucosidase but does not affect the other functions of the enzyme. The researcher then introduces the mutated enzyme into mammalian cells that do not express wild type glycogen debranching enzyme. Predict the effect of the mutation on glycogen metabolism.

Answers

Answer:

cells will have glycogen molecules with branches of a single glucose residue

Explanation:

Glycogen debranching enzymes are proteins that catalyze the removal of branching from glycogen, which is a multibranched polysaccharide composed of glucose units and serves as a form of energy storage. These enzymes have two catalytic activities on a single polypeptide chain: glucosyltransferase and glucosidase activities, which are both required for glycogen breakdown. Glycogen degradation requires both glycogen phosphorylase and glycogen debranching enzymes. First, a glycogen phosphorylase acts to digest a glycogen branch down to four glucose residues. Subsequently, the debranching enzyme through its glucosyltransferase activity acts to transfer three glucose residues to a nearby branch of the glycogen chain. Finally, through its glucosidase activity, the debranching enzyme cleaves the remaining α-1,6 linkage in order to release free glucose.

Which of the following is a feature of beaches?
A. Berms
B. Runnels
C. All of these
D. Shingles

Answers

Answer:

C: All of these.

Explanation:

Because there is feature

C I’m not 100% confident tho

1. Biochemical and differential tests can be incorporated into growth media or performed on isolated colonies after they have been cultured. Give three examples of a differential test that is incorporated into media and three examples that are applied after the colonies have been cultured.

Answers

Answer:

Biochemical and differential tests can be incorporated into growth. media or performed on isolated colonies after they have been cultured. ... Three examples of biochemical tests that are done on the colonies are catalase test, indole test, and urease test.

what are three characteristics of life that archaea bacteria have?

Answers

Answer:

The common characteristics of Archaebacteria known to date are these:

(1) the presence of characteristic tRNAs and ribosomal RNAs.

(2) the absence of peptidoglycan cell walls, with in many cases, replacement by a largely proteinaceous coat.

(3) the occurrence of ether linked lipids built from phytanyl chains.

Which of these is the best definition of sustainable development?
A. Development that makes sure buildings are strong enough to sustain large hurricanes and earthquakes
B. Development that's typical of underdeveloped nations that derive their products directly from nature
C. Development that's supported by public opinion
D. Development that ensures the protection of the environment in the long term

Answers

Answer:

option D

Explanation:

is the correct answer

Development which basically ensures the protection of the environment in the long term is sustainable development. The correct option is D.

What is sustainable development?

Sustainable development is defined as growth that fulfills the requirements of the moment without jeopardizing future generations' capacity to meet their own needs.

The financial, social, and environmental measurements of sustainable development are examined.

The authors contend that material-intensive conventional productivity recovery is unsustainable in the long term unless environmental and social factors are prioritized equally.

Environmental protection aims to preserve as well as restore a healthy natural environment.

Sustainable development incorporates ecologic, social, and economic goals in order to achieve long-term equitable growth that benefits both the present and the future.

Thus, the correct option is D.

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From a chemical view, how is an amino acid is being recognized by its specific aminoacyl tRNA synthetase?

Answers

Answer:

An aminoacyl-tRNA synthetase (aaRS or ARS), also called tRNA-ligase, is an enzyme that attaches the appropriate amino acid onto its corresponding tRNA. It does so by catalyzing the transesterification of a specific cognate amino acid or its precursor to one of all its compatible cognate tRNAs to form an aminoacyl-tRNA.

What is the correct order of amino acid if the sequence of bases on DNA were as follows: C-C-T-C-G-A-T-T-C-A-T-G
glycine, alanine, lysine, tyrosine

2)

alanine, proline, lysine, tyrosine

3)

valine, aspartate, glycine, proline

4)

aspartate, glycine, serine, valine

Answers

Answer:

it should be G-G-A-G-C-T-A-A-G-T-G-C

Explanation:

A=T

C=G

think of them as opposites. invert them and you'll have the answer (its easier if you write the answer right underneath)

The amino acid sequence should be G-G-A-G-C-T-A-A-G-T-G-C

G-G-A: glycine

G-C-T: alanine

A-A-G: lysine

T-G-C:  tyrosine

What are amino acids?

Amino acids are molecules that combine to form proteins. Amino acids and proteins are the building blocks of life.

The nucleotide triplet that encodes an amino acid is called a codon. Each group of three nucleotides encodes one amino acid. There are 64 combinations of 4 nucleotides taken three at a time and only 20 amino acids, the code is degenerate (more than one codon per amino acid, in most cases).

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As with most fluid samples sent for microbiological analysis, Mandy starts her investigation with a Gram stain.
Gram Stain Analysis Classify the infectious agent based on the Gram staining.

Answers

Hi. Unfortunately your question is incomplete and you have not shown any photos of the sample that Mandy must identify by Gram stain. However, after researching her question on the internet, I was able to find another question exactly like this one, which showed the microorganism that should be analyzed. This image is attached below. In that case, I hope the answer below can help you.

Answer:

Gram-positive cocci

Explanation:

It is possible to identify that the microorganism presented is a bacteria due to the application of the test known as Gram stain, which allows the identification of gram positive and gram negative bacteria. This test allows the bacteria to be subjected to a specific dye that reacts with the chemical composition of the bacteria, modifying its color. Gram positive bacteria show a blue color after the test, while gram negative bacteria show a red color after the test.

As we can see in the attached image, the bacteria that Mandy is analyzing shows a blue color, after being submitted to Gram stain, being then a gram positive bacteria.

We can also see that the colonies of this bacterium have formed round, similar to a coconut and for this reason, we can conclude that the bacterium has the shape known as cocci.

Therefore, we can classify the microorganism as a Gram-positive cocci.

packaging methods of watermelon ​

Answers

Answer:

The packing process consists of:

The workers remove the watermelons from the bulk cardboard bins and place them onto the packing line.

The watermelons pass through three different brush steps (without the use of any wash water)

The watermelons are labeled and packed into large cardboard bins once again.

Explanation:

What are the following is considered a receptive a fine touch

Answers

Explanation:

This system is responsible for all the sensations we feel – cold, hot, smooth, rough, pressure, tickle, itch, pain, vibrations, and more. Within the somatosensory system,there are four main types of 1.receptorsme chanoreceptors, 2.thermoreceptors,3. pain receptors, and 4. proprioceptors.

hi, define chemistry and mention the three branches of chemistry answer it fast .Good night​

Answers

Explanation:

Branches of inorganic chemistry include: ... Nuclear chemistry — the study of radioactive substances. Organometallic chemistry — the study of chemical compounds containing bonds between carbon and a metal. Solid-state chemistry — the study of the synthesis, structure, and properties of solid materials.

Answer:

The five primary branches of chemistry are physical chemistry, organic chemistry, inorganic chemistry, analytical chemistry, and biochemistry.

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