Answer:
The modified hemoglobin with free imidazole cannot be expected to show cooperativity in oxygen binding. The movement of iron ion takes place up in the plane of heme when binding of one subunit of hemoglobin takes place with oxygen. One of the iron's and oxygen's axial ligands comprise the proximal histidine's imidazole ring.
With the movement of iron into the hemoglobin ring, the pulling of proximal histidine takes place along with it. Therefore, when binding of oxygen takes place with one subunit, a modification also takes place in the intersubunit associations, this also comprises displacement of the alpha helix. This phenomenon plays an essential role in modifying the hemoglobin's tensed state to the relaxed state. The withdrawal or mutation of the imidazole ring from the histidine residue does not further permit the cooperative binding as it is not associated physically with the alpha-helix.
Which is an example of foraging as a benefit of social behavior?
Answer:
kinda like foraging a signature
Explanation: if I'm wrong go randonauting
Photosynthesis is an example of what kind of reaction
Answer:
a complex reaction
Explanation:
light sun and carbon dioxide are created
Answer:
Anabolic or endothermic
Explanation:
Photosynthesis is an example of anabolic reaction because we build complex carbs from relative simple building material and it is also an endothermic reaction because we need the energy from sun to start the reactions in photosynthesis.
Both are correct, depends on what you options you are given or what you've been taught.
why Sexually transmitted Infection are more readily passed from male to female
Answer:
STDs are more readily passed male to female as opposed to female to male because the male is as a requisite to sex sharing his bodily fluid (semen) directly with her. That means that any fluids are likely to enter into an internal cavity of hers.
On the other hand, any bodily fluids she releases, which are not requisite to sex, are likely to stay on the outside of the man's body because they will just go onto the skin of his genital area.
What is the approximate carrying capacity of the
population?
In which year, did the population reach the
carrying capacity?
About how many years did it stay at carrying
capacity?
Answer:
250 individuals
year 3
4 years
Explanation:
Answer:250
year 3
4 years
Explanation:
Which element is a metaloid
Answer:
Elements that are the border line of metals and non-metals.some elements near the stepped line have mixed properties of metals and non-metals these elements are called metalloid e.g. Silicon and Germanium
Explanation:
I hope this will help you:)
Both DNA and RNA are synthesized by covalently linking a nucleoside triphosphate to the previous nucleotide, constantly adding to a growing chain. In the case of DNA, the new strand becomes part of a stable helix. The two strands are complementary in sequence and antiparallel in directionality. What is the principal force that holds these two strands together
Answer:
The correct answer is - hydrogen bond.
Explanation:
Hydrogen bonding is very essential for life on earth. DNA has a double-helix structure that means it has two distinct strands in its structure and hydrogen bonds hold together the nitrogen base pairs in the middle. In absence of hydrogen bonds, DNA would have to exist as a different structure. The principal force or bonds between those two strands are Hydrogen bonds between the nitrogen bases. Adenine always makes a hydrogen bond with Thymine whereas Guanine always binds with cytosine.
Thus, the correct answer is - hydrogen bond.
4. What about each person's chromosomes make them unique?
Answer:The DNA in each persons chromosomes makes them unique
Explanation: Representing segments of the genome that have been passed down from generation to generation, occasionally being shuffled amongst chromosome pairs. This shuffling has helped drive evolution through time, and ultimately has helped write your genome and the story of you.
studied the role of RNA in protein synthesis, specifically in the bacteria E. coli.
The question is incomplete. The correct question is as following:
__________ studied the role of RNA in protein synthesis, specifically in the bacteria E. coli.
Answer:
Marshall Nirenberg and Heinrich Matthaei
Explanation:
Marshall Nirenberg and Heinrich Matthaei are two biochemist and geneticist who studied the functional importance of RNA in the process of translation (protein synthesis) experimentally in E.Coli.
Nirenberg and Matthaei discovered the first codon out of 64 codons present in RNA and they successfully performed translation (protein synthesis) in E.coli in a test tube. They decoded the first codon UUU (phenylalanine) by using synthetic RNA having only uracil nucleotides in a E.Coli and later they decoded further codons.
So, the correct answer is Marshall Nirenberg and Heinrich Matthaei.
Explain why detritivores, decomposers and omnivores are not assigned trophic level
Answer:
They can be found in several trophic levels, as they are related with several trophic level, hence, they cannot be placed on a specific trophic level.
Explanation:
A trophic level is a specific position occupied by a group of organisms on a good chain in relation to their nutrition.
Dentrivores feed on the waste of other organisms and cannot be really placed on a specific trophic level, likewise decomposers, of which they feed and decompose the body of organisms.
Omnivores feed on both plants and animals, which includes producers and consumers. Placing omnivores on a specific trophic level would not be really straightforward also.
What is the correct order of processes in the accretion of planetesimals?
1)Masses of matter form around dust grain, masses of matter collide, and atoms and molecules are added to dust grain.
2)Masses of matter collide, masses of matter form around dust grain, and atoms and molecules are added to dust grain.
3)Atoms and molecules are added to dust grain, masses of matter form around dust grain, and masses of matter collide.
4)Masses of matter collide, atoms and molecules are added to dust grain, and masses of matter form around dust grain.
Answer:
The correct option is 3. Atoms and molecules are added to dust grain, masses of matter form around dust grain, and masses of matter collide.
Explanation:
Two theories explain how planets get formed. One of them is The gravitational instability, and the other one is the Planetesimal Hypothesis.
The planetesimal hypothesis says that a planet formation is a process in which dust particles and gas collide and get stick together in a process known as coagulation. This makes place to grains production. These grains enhance their sizes up to a point in which they form bodies big enough to be called planetesimals. When planetesimals are formed, they start a gravitative interaction with other planetesimals of different sizes, and by collision, they form bigger planetesimals that accrete the smaller ones and end up forming a proto-planet. Planets and giant planets get formed by accretion of solid planetesimals. The term accretion refers to the solids agglomeration to form bigger objects, such as planets.
Answer:
c
Explanation:
took the quiz
In which of the following ways is region b in the diagram different from region D
Answer:
The A region is - the central sulcus and D region is - cerebellum
Explanation:
The central sulcus is a noticeable part of the brain, isolating the parietal lobe from the frontal lobe. It additionally isolates the primary somatosensory from cortex posteriorly from the primary motor cortex anteriorly. the most prominent approach to locate the central sulcus by starting the medial surface of the hemisphere.
The cerebellum plays major role in motor movements by coordinate the force of these different muscle groups and their timing to produce body movements. It is present dorsal to the pons and the medulla, to make an essential structure of the hindbrain. It lies under the occipital and temporal lobes of the cerebral cortex.
How can foreign pieces of DNA be transferred into organisms?
A) by restriction enzymes
B) by vectors
C) by carrier enzymes
D) by test crosses
Answer:
B) Vectors
Explanation:
They are also called carriers.
Which description refers to cumulus clouds?
are fluffy
form layers
are usually gray
cover most of the sky
I need help ASAP!!!
Answer:
Cumulus clouds are fluffy
Explanation:
From Latin, cumulus refers to a group or a bunch. Cumulus clouds are isolated clouds of a horizontal base and show vertical growth or development. They might adopt some kind of cotton mountain or domes. They have well-defined outlines, and they can easily reach many sizes and thicknesses. They originate because of the presence of strong convection streams and fast elevations of warm air.
Answer:
A
Explanation:
pls help look at the above image and answer the questions thx if you do not know all the questions you can answer the one you know
Answer:
1.animal diversity
2.don't no sorry
3.grass
4.rabbit
5.Tiger
6.
How would you summarize your observations on the relationship between the allele frequency in the gene pool and the frequency among the zygotes, as the number of zygotes formed increases?
Answer:
Explanation:
Gene pool consist of all the gene in an entire population while an allele frequency is how often an allele occur in the population.
Allele and gene frequency are often affected by Evolution. We have tgw micro and macroevolution. The microevolution involves the changes that occur in an allele or gene frequency from generation to generation while the macroevolution are accumulated changes that takes years to occur. Due to evolution, as new zygotes are formed some allele are lost due to selection, some are been drifted away by genetic drift , some still reoccur and new species also occur after years of accumulated changes. The greatest force of changes in gene pool as zygotes are been formed is evolution.
10. In the water cycle, liquid changes to gas by
O precipitation
O condensation
evaporation
O freezing
Answer:
evaporation
Explanation:
when the liquid heated for a long time it removes steam in form of gases
In the water cycle, liquid changes to gas by evaporation, which is in Option C. The water cycle, also known as the hydrological cycle, describes how water circulates through the Earth's ecosystems.
What is the water cycle?The water cycle involves a series of processes that include evaporation, condensation, precipitation, and infiltration. Evaporation is the process by which water changes from a liquid state to a gaseous state, such as water vapor. This occurs when energy (in the form of heat) is absorbed by the water, causing the water molecules to move faster and break free from their bonds to form a gas. After water evaporates, it can undergo condensation, which is the process by which water vapor changes back into liquid water.
Hence, in the water cycle, liquid changes to gas by evaporation, which is Option C.
Learn more about the water cycle here.
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When can
exponential growth occur in a population?
Answer:
c
Explanation:
Exponential growth is when a population increases in a given time when resources are unlimited. In regular nature, resources will eventually run out, but if they are unlimited, they can grow exponentially
Exponential growth can occur in a population when there are unlimited resources and no limiting factors such as disease, predation, or competition.
What is exponential growth?Exponential growth refers to a phenomenon in which a population, a species, or a quantity increases at a rate that is proportional to its current size. In other words, as the population grows, the rate of growth also increases. This can lead to a rapid increase in population size over a short period of time.
Exponential growth can occur when there are favorable conditions for reproduction and survival, such as an abundance of resources and a lack of predators or diseases. This type of growth is often seen in microorganisms, such as bacteria, and in populations of animals that have no natural predators or competitors. However, exponential growth is not sustainable in the long term, as eventually resources will become scarce and the population will stabilize or decline.
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The element with an atomic number of 4 is?
Answer:
Be
Beryllium
Explanation:
number of protons = atomic number.
number of electrons = atomic number
Answer:
Beryllium
Explanation: Per Penn and Foster
what is a spinal cord
Answer:
The spinal cord is a long, thin, tubular structure.
Explanation:
The spinal cord is a long, thin, tubular structure made up of nervous tissue, which extends from the medulla oblongata in the brainstem to the lumbar region of the vertebral column. It encloses the central canal of the spinal cord, which contains cerebrospinal fluid.
Answer:
it is a tissue
Explanation:
One pound of body fat stores about 3,500 food Calories of energy. How many joules
does make
The unit of energy expressed by the foods is defined by calories. One pound of fats has been known to have 3500 calories. The energy in joules is 14651 Joules.
What are calories?Calories are defined as the unit of energy that comes from the food an organism consumes and drinks. These calories are important as they provide cellular and metabolic energy.
The calories should be in a balanced amount and not too much or too low, as it can lead to obesity and malnutrition resulting in various body diseases and disorders.
It has been known already that one pound of fats has 3,500 calories in them that provide energy. Also, it has been known that 1 calorie = 4.184 joules, so, 3500 calories = 3500 × 4.184 = 14651 joules or 14.65 Kilojoules.
Therefore, 3500 calories contain 14651 joules of energy.
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PLEASE HELP
1. When recommending solutions to decrease human impact, which location were you able to make the greatest positive impact? Please explain your selection by using data from the simulation.
2. What recommendations would you give to your local community to help to decrease the local effects of human impact on the environment? List 2 recommendations and how they will positively impact your community.
3. What recommendations would you give to the global governments to help decrease the global effects of human impact on the environment? List 2 recommendations and how they will positively impact our planet.
Answer:
Explanation:
1,The Amazon rain forest
The reforestation of the Amazon forest after logging is a significant impact of human activities,This re- population of trees ensures that the effect of logging, the human impact, is reduced to barest minimum, which reduce air population and therefore the green house effects.
In addition, the use of recycled material which reduced contamination and therefore promote safe water is another reduction in human impact. However the preservation of the Amazon is global.And therefore its conservation of the CO2 for earth usage is important to all to prevent global warming and continuous existence of human beings through photosynthesis.,
2.
Indiscriminate dumping and burning of refuse should be avoided- this leads to carbon emission and CO pollution.
Fertiliser applications close to lakes and rivers should be reduced.
These impacts leads to air pollution and respiratory disorders, fog which reduces visibility Therefore if open combustion is avoided this reduces the above effects. Waste disposal should be managed by governments, in a designated areas and not by induviduals
.Leakages of these NPK fertilizers leads to eutrophication and therefore increase in the aquatic organic matter, reduction of oxygen of the aquatic bodies and death of the fauna. Fertiliser application near aquatic bodies should be reduced,Compost and manure should be used near this areas.
3.
The use of Combustion engines should be reduced drastically as this is the main source of climate change of global warming, air pollution and flooding. Governments should invest in the mass production of electric cars, with the release of no pollutants to the environments.
Like wise, recycling of used paper materials will ensure continuous availability of paper, and therefore cut down incessant felling of trees for paper production.Besides, steel and other metallic materials use be used more for furniture productions, thereby conserving rain forests.These will preserve the global ecosystem and ensure stability.
When recommending solutions to decrease human impact, which location were you able to make the greatest positive impact? Please explain your selection by using data from the simulation.
New york, 893 - 853 = 40 which is the highest quotient.
What recommendations would you give to your local community to help to decrease the local effects of human impact on the environment? List 2 recommendations and how they will positively impact your community.
Installing solar panels and replanting 2 trees for every tree that’s been cut down, this will help the atmosphere and deforestation.
What recommendations would you give to the global governments to help decrease the global effects of human impact on the environment? List 2 recommendations and how they will positively impact our planet.
Constructing using only recycled materials decreases water pollution to 823 ppm and Creating more protected areas decreases air pollution to 368 ppm this will help the environment and oxygen.
After a person recovers from the chickenpox the virus can lie dormant in the dorsal root ganglion in multiple levels of the spinal cord and cranial nerves. Later in life, the virus can be reactivated and travel within a sensory neuron to cause shingles. Do you think it is possible to get shingles more than once?
Answer:
No
Explanation:
It is scientifically impossible.
A sample of living tissue of a fish-eating bird species was found to have a specific, heavy metal concentration of 700,000 ppt (parts per trillion). What is the best inferential explanation you could make based on these data
Answer:
The best inferential explanation is that the heavy metal concentration was gotten from the build up of small amounts of heavy metal in the birds, gotten from consuming fishes from a heavy-metal -polluted water body.
Explanation:
If a sample of fish-eating bird species is found to contain such a large concentration of heavy metal, then the primary source of the heavy metal concentration in their body will be from their food source. Fish-eating birds are in most cases, solely dependent on fish for their food. Most of them do not eat any other food apart from fish, so the problem can be pin-pointed to the fishes they consume. The best inferential explanation is that the heavy metal concentration was gotten from the build up of small amounts of heavy metal in the birds, that is gotten from ingesting fishes that have ingested heavy metals in them. This can be as a result of the pollution of water bodies like streams, lakes and seas from heavy-metal-containing industrial wastes.
why i cant use blood agar with Catalase test?
Catalase is the enzyme that breaks hydrogen peroxide (H2O2) into H2O and O2. ... If using colonies from a blood agar plate, be very careful not to scrape up any of the blood agar— blood cells are catalase positive and any contaminating agar could give a false positive.
Answer:
Catalase is the enzyme that breaks hydrogen peroxide (H2O2) into H2O and O2. .
Explanation:
If using colonies from a blood agar plate, be very careful not to scrape up any of the blood agar— blood cells are catalase positive and any contaminating agar could give a false positive.
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Arrange the following "sound processing events" in order, from start to finish. - Vibrations are conveyed to the endolymph inside the cochlea, causing the cochlear hair cells to bend - Sound waves cause the ear drum and middle ear bones to vibrate - Bending of the cochlear hair cells causes ion channels to open, which causes neurotransmitters to be released, which results in activation of the auditory nerve, which sends signals to the brain for processing. - Sound waves move down the auditory canal toward the ear drum
Answer:
1) Sound waves move down the auditory canal toward the eardrum
2) Sound waves cause the eardrum and middle ear bones to vibrate
3) Vibrations are conveyed to the endolymph inside the cochlea, causing the cochlear hair cells to bend
4) Bending of the cochlear hair cells causes ion channels to open, which causes neurotransmitters to be released, which results in activation of the auditory nerve, which sends signals to the brain for processing
given a container of a solution of 5% hcl all samples tested from this same bottle will have the same mass ratio of hydrogen to chlorine. this application of the law of
Answer:
The law of conservation of mass.
Explanation:
This law talks about that the mass is not lost during the reactions, but is maintained.
Answer:
ITS NOT CONVERSATION OF MASS. ITS CONSTANT COMPOSITION
Explanation:
I dii ok not under stand this please help me!
Answer:Answer:
For 1: The correct answer is Model 1, 2, and 4.
For 2: The correct answer is Option 1.
Explanation:
For 1:
An element has 3 subatomic particles: electrons (E), neutrons (N) and protons (P).
Atomic number is defined as the number of protons or number of electrons.
Atoms having same number of protons are same. From the given models, Model 1, 2 and 4 have 2 protons with different neutrons. Hence, these models belong to same element.
For 2:
A compound is defined as a substance in which two or more types of elements combine in a fixed ratio. For Example: is a compound made out of atoms of carbon and oxygen.
Hence, the correct answer is Option 2.
Which environmental change is considered short term?
forest fire
ice age
mountain building
solar energy changes
Edunuity
Answer:
forest fires
Explanation:
An environmental change that occurs quickly and affects organisms immediately (causing behavioral adaptations).
floods, forest fires, blizzards, volcanic eruptions,
Answer: Forest fires[A]
Explanation:
got 100% on the edge2020 Unit Test
have a good day:)
What is each half of a chromosome called?
Answer:
Chromatid.
Explanation:
A chromatid is half of a chromosome.
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A population of tree salamanders is highly variable in color and blends easily with the surrounding, colorful vegetation. After a factory upstream impacts their environment, several species of trees die off and only those with one color of leaf and flower are left. Within several generations, the salamander population has reduced variability in color.
Answer:
This is an example of directional selection.
Explanation:
Directional selection is a type of positive selection where the evolutionary fitness of one genotype is higher compared to the other ones, thereby favoring the selection of one particular phenotype and shifting allele frequencies towards the selected genotype. In a biological context, the directional selection increases the chances for surviving and for reproducing in those organisms that have the alleles favored by this type of selection. Thus, the directional selection produces the loss of genetic variability and leads to the fixation of the dominant alleles.
