Membrane proteins that bind to signal by which cells communicate are called receptors are generally transmembrane protein.
What is the function of the stop sequence to a transmembrane protein?When the protein presents an internal signal sequence (SSI), this sequence, in addition to directing the transport of the translational complex to the REG, will also act as an SPT, with the carboxy-terminal portion of the protein facing the lumen. from the reticulum or into the cytosol.
in this case, many transmembrane proteins function as gateways to permit the transport of specific substances across the membrane.
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what has caused a 90 ecrease in southern california steelhead run sizes?
Answer:
The cause of the 90 decreases in southern California steelhead run sizes are because of the dams along the water sources and it has cause 90% decrease in the southern California steelhead run sizes. The Dam alter aquatic ecology cause the river hydrology up steam and down steam which cause the affecting water quality.
The reason why the Southern California steelhead run sizes has decreased by 90% is the construction of dams along water sources.
What is a dam?The dam is a large structure that serves the purpose of holding back water and making its level to rise quite high. Dams could be used for the purpose of electricity generation.
The reason why the Southern California steelhead run sizes has decreased by 90% is the construction of dams along water sources.
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items that are cycled through the biosphere in biogeochemical cycles.
Answer:water, carbon, nitrogen, phosphorus, and sulfur cycles.
Explanation:XD
What is the lock and key theory?
Lock and key theory states that enzymes have a specific shape that directly correlates to the shape of the substrate.
What is the lock and key theory of enzymes?Enzymes are globular protein that catalyses a biological chemical reaction.
One of the characteristics of enzymes is that they are usually substrate-specific i.e. They bind and act to a particular substrate.
This characteristics is explained by the lock and key theory of enzymes, which states that enzymes have a specific shape that directly correlates to the shape of the substrate.
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What are the types of energy emitted by the sun
Answer:
solar radiation
Explanation:
Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays.
EASYYYYYY
If global warming continues, what do you think will happen to the glaciers and icecaps of the Earth? What consequences will this have for people and other living things?
Answer:
Glaciers and Icecaps will melt.
The Consequences would be,
- Animals will lose their habitat due to melted Icecaps. Animals like polar bears, arctic foxes, snowy owls, reindeer, etc. They may also get extinct.
- It will create more frequent and intense coastal storms like hurricanes and typhoons.
- Coniferous plants will have problems
Answer:
The glaciers and icecaps will eventually melt
nutrients from croplands are carried by the mississippi river into the gulf of mexico. if nutrients are good for growth, why are scientists concerned about this nutrient influx?
Scientists should be concerned because the nutrient may cause eutrophication.
What is eutrophication?It is the enrichment of water bodies leading to the bloom of aquatic plant species and its associated detrimental effects on the ecosystem.
Nutrient enrichment of water bodies may cause a rapid bloom of algae, thereby limiting the amount of light and oxygen in water bodies. The bloom may also constitute a nuisance to waterways.
This, in turn, may cause the death of aquatic animals whose decay gives an obnoxious odor and depletes dissolved oxygen further.
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What causes an ionc bond?
Which eye structure is primarily responsible for making the adjustments required to focus on objects both near and far?.
Answer:
The lens
It helps to focus on objects and light
What two issues did different groups of reagan supporters agree on during the 1980 election?
During the 1980 election, the two issues which different groups of Reagan supporters agreed on were:
A forceful foreign policy.A strong military.Who is Reagan?Ronald Wilson Reagan was an American politician born on the 6th of February, 1911 in Tampico, Illinois, United States of America. Also, Reagan was elected by American citizens to serve as the 40th president of the United States of America between 1981 and 1989.
During the 1980 election in the United States of America, the two issues which different groups of Ronald Wilson Reagan supporters agreed on include the following:
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How does each new cell formed by cell division differ from the mature cell?
OA. Each new cell has a smaller ratio of surface area to volume.
B. Each new cell has a larger ratio of surface area to volume.
O C. Each new cell has different information in its nucleus.
D. Each new cell has fewer chromosomes in its nucleus.
Which types of muscle can
be conditioned to improve
their function?
Cardiac and skeletal muscle
Smooth and rough muscle
Answer:
Skeletal muscle – the specialised tissue that is attached to bones and allows movement. Together, skeletal muscles and bones are called the musculoskeletal system (also known as the locomotor system). Generally speaking, skeletal muscle is grouped into opposing pairs such as the biceps and triceps on the front and back of the upper arm. Skeletal muscles are under our conscious control, which is why they are also known as voluntary muscles. Another term is striated muscles, since the tissue looks striped when viewed under a microscope.
Smooth muscle – located in various internal structures including the digestive tract, uterus and blood vessels such as arteries. Smooth muscle is arranged in layered sheets that contract in waves along the length of the structure. Another common term is involuntary muscle, since the motion of smooth muscle happens without our conscious awareness.Cardiac muscle – the muscle specific to the heart. The heart contracts and relaxes without our conscious awareness.
A scientist notices that a lump of niobium is warm to the touch and wonders if nuclear reactions are taking place in the metal. How can she find out?.
Checking for the presence of alpha, beta, and gamma particles will determine if nuclear reactions are taking place.
What is a Nuclear reaction?This reaction occurs when two or more nuclei fuse together to form a new one and is characterized by heat also.
Its unique property is the presence of radiations which is why the presence of alpha, beta, and gamma particles should be checked.
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A scientist can find out whether a nuclear reaction is taking place or not by inspecting the presence of alpha, beta, and gamma particles.
What is Nuclear Reaction?A nuclear reaction may be defined as a strategy in which the nucleus of an atom is transformed by being shattered apart or united with the nucleus of another atom.
The complete question is as follows:
Measure the metal’s temperature.Check for the presence of alpha, beta, and gamma particles.Look for the presence of niobium compounds.Place the niobium in a pressurized container, and see if the lump becomes warmer.Therefore, the correct option for this question is B. This is because the influential existence of these particles is a characteristic indicator of radioactive decay which means unstable atoms spontaneously experience a nuclear reaction.
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major arteries of the brain
The main arteries of the brain are the vertebral and basilar arteries.
What are the main arteries of the brain?The vertebral and basilar arteries supply the
brainstemcerebellumposterior cerebral cortexand medial temporal lobe.The posterior cerebral arteries bifurcate from the basilar artery to supply the medial temporal (including the hippocampus) and occipital lobes, thalamus, and mammillary and geniculate bodies.
With this information, we can conclude that the main arteries of the brain are the vertebral and basilar arteries.
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What topic level do herbivores occupy in a food chain
Answer:
herbivores are primary consumer, which means they occupy the second trophic level and eat producer
A conservationists states that "we need to preserve the ocean because 95% of it is yet unexplored". why is ocean exploration important to human society? back your claim by giving three specific examples of how ocean exploration has resulted in the development of technologies that can potentially benefit human society.
Explanation:
Ocean exploration technology has advanced much more than before in the past decade.Ocean exploration can help with monitoring the deep sea.So much ocean explored by scientists begin to propel prediction of marine creatures numbers and direction of environment change, which finally keeps biological balance.Humans actively develop other ocean resources to resolve ore resources and ocean energy resources as one of benefits deep sea exploration.The area around the Sahara Desert is slowly changing into a dry region, similar to the desert. Which trait is most likely to be selected in the population of plants growing in this region?
A.
trait encoding for short plant structure to reduce transport of water
B.
trait encoding for thick bark on trees
C.
trait encoding for increased leaf size to increase photosynthesis
D.
trait encoding for fruit
The trait that is most likely to be selected in the population of plants growing in this region is trait encoding for short plant structure to reduce transport of water.
How are desert plants adapted?Adaptation is any change that is made or undergone to suit a condition or environment.
Desert plants are adapted to the dry condition of the area by the possession of several traits.
According to this question, the area around the Sahara Desert is slowly changing into a dry region, similar to the desert.
This suggests that the trait that is most likely to be selected in the population of plants growing in this region is trait encoding for short plant structure to reduce transport of water.
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Answer:trait encoding for short plant structure to reduce transport of water
Explanation:The Sahara Desert is a zone which receives very low or no precipitation. This region receives maximum of sunlight not received by any other biome. The soil is typically sand which is highly porous and lacks essential growth nutrients necessary for plant growth. The plants grown around Sahara Desert are xerophytic plants. These plants undergoes several adaptations in order to prevent loss of water through transpiration. Trait encoding for short plant structure to reduce transport of water is a xerophytic adaptation.
Match the following terms and definitions.
"inner skin"; layer of cells that develop on the inside of the
embryo
process in early embryonic development that forms layers of
cells
1.
2.
"middle skin"; layer of cells that develops between the
3. ectoderm and endoderm; turns into organs, muscle, and
circulatory vessels
organisms that form by spiral cleavage and develop a mouth
4. from the first indentation of the gastrula stage of embryonic
development; includes most invertebrates
5.
an animal with a false body cavity separating the mesoderm
and endoderm
6.
a characteristic of animals that have subdivisions of repeated
body parts
gastrulation
protostomes
endoderm
mesoderm
pseudocoelomate
segmentation
The answer is as follow:
Inner skin"; layer of cells that develop on the inside of theembryo process in early embryonic development that forms layers of cells is gastrulation"Middle skin"; layer of cells that develops between the endoderm Ectoderm and endoderm; turns into organs, muscle, and circulatory vessels organisms that form by spiral cleavage and develop a mouth mesoderm From the first indentation of the gastrula stage of embryonic development; includes most invertebrates protostomesAn animal with a false body cavity separating the mesoderm and endoderm pseudocoelomateA characteristic of animals that have subdivisions of repeated body parts segmentationWhat is Gastrulation?This process of embryonic tissue development is called Gastrulation. This is a phase during the embryonic development of most animals during which the single-layered blastula is reorganized into a trilaminar which is a three layered structure called the gastrula.
The layers are namely; the ectoderm, mesoderm, and endoderm. Endoderm the most internal layer forms the lining of the gut and other internal organs.
Thus, this could be the answer.
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1. Gastrulation
2. Endoderm
3. Mesoderm
4. Protosomes
5. pseudocoelomate
6. Segmentation
a. Worldwide, what percentage of human water usage does industry account for? (Note: This relates to water usage now, not water supply.) What is the percentage in the United States?
Explanation:
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Describe the medicinal value of mushroom
Answer:
Mecdicinal Value Of Mushroom
Explanation:
Mushroom are antibacterial, immune system inhancer and cholesterol lowing agents; additionally, they are important sources of bioactive compounds. As a result of these properties, some mushroom extracts are used to promote human health and are found as dietary supplements.
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During meiosis, each pair of alleles on the homologous chromosomes sorts independently from all other pairs of alleles. This statement corresponds to
During meiosis, each pair of alleles on the homologous chromosomes sorts independently from all other pairs of alleles. This statement corresponds to the law of independent assortment.
What does the law of independent assortment say?
Mendel's Second Law, also known as the Law of Independent Segregation, states that the factors (alleles) for two or more traits are independently distributed during gamete formation and combine at random.
So in this case, each pair of alleles on the homologous chromosomes sorts independently from all other pairs of alleles represents Mendel's second law.
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An Rh negative mother has just given birth to an Rh positive baby after 18 hours of strenuous labor. Her rosette test was positive. Upon performing the Kleihauer-Betke stain procedure, the percentage of fetal cells is found to be 1.9%. The mother's total blood volume is 5,000 mL. What dose of Rh Ig (RhoGam) should be administered to the mother
The mother should have 4 vials of Rh Ig administered.
How to calculate the value?Rh immune globulin is used to help prevent an Rh-negative mother from becoming sensitized to the D antigen from an Rh-positive baby.
To calculate how many vials are needed, the following formula can be employed:
KB% x blood volume = volume of baby blood
In this case: 1.9% x 5,000mL = 95 mL baby blood in maternal circulation
95mL / 30 mL per Rh Ig vial = 3.17 vials
This equals 3 vials (after rounding), with the addition of 1 extra vial = the mother should have 4 vials of Rh Ig administered.
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1.Is there an industrial or disposal process of using sieving to separate mixtures? Describe any environmental impact it might have
Answer:
Yes
Explanation:
There are plenty of evidences and uses of sieving
It was begun by Romans
Nowadays it's used to separate several mixtures like sands for construction,food materials etc
Why is blood glucose self-monitoring preferred over urine glucose testing?
Blood glucose self-monitoring is preferred over urine glucose testing because it is more accurate.
What is glucose testing?Glucose testing refers to the methodologies to measure the amount of this simple carbohydrate in the body tissues/organs.
Glucose testing is fundamental to assess the diseases associated with the metabolism of this nutrient (e.g., diabetes)
In conclusion, blood glucose self-monitoring is preferred over urine glucose testing because it is more accurate.
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How does cell volume affect nutrient exchange between the cell and its external environment.
Answer:
The ratio of cell volume to surface area determines the efficiency of nutrient exchange.
Explanation:
Fossil evidence has been used to understand the movement of continental plates. The figure below shows where fossils of several species have been found. How would the range
modern organisms today compare to these species?
Answer:
The modern organisms would have more muscular bodies
Explanation:
______________ are infectious agents composed exclusively of a single piece of circular, single-stranded RNA which has some double-stranded regions.
Viroids
Pollinators
Conductors
Capsids
Answer:
viroids
Explanation:
Viroids are infectious agents composed exclusively of a single piece of circular single stranded RNA which has some double-stranded regions.
What are the environmental impacts of wheat bran?
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Our comparative life cycle assessment shows that in flour system, using wheat bran for biocomposite production rather than wasting it, lowers the overall environmental impacts including global warming and fossil fuel depletion mainly due to bran fiber replacing polypropylene, and avoiding carbon dioxide emissions from .Answer:
Using wheat bran for bio-composite production rather than wasting it, lowers the overall environmental impacts including global warming and fossil fuel depletion mainly due to bran fiber replacing polypropylene, and avoiding carbon dioxide emissions from .
Bio-based materials are increasingly proposed as sustainable alternatives to fossil-based products. Before commercialization, however, the environmental performance of bio-based materials must be evaluated to ensure the sustainability goals are met. Bio-composites derived from natural fibers hold promises for achieving the desired sustainability while offering competitive performance.
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Explanation:
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Describe the steps involved in the release of neurotransmitter into a synaptic cleft to bind to its receptor.
Answer:
Polarization and depolarization
Explanation:
The transfer of signal happens by the exchange of sodium and potassium ions in and out of the cell membrane of neuron.
Which statements describe how traits are inherited? Check all that apply.
An offspring always receives different alleles from each parent.
An offspring always receives the same alleles from each parent.
An offspring can receive different alleles or the same alleles from each parent.
Traits are inherited when proteins are passed from parents to offspring.
Traits are inherited when genes are passed from parents to offspring.
00
The statements describe how traits are inherited are:
Traits are inherited when genes are passed from parents to offspring.An offspring can receive different alleles or the same alleles from each parent.What are traits?Dominant traits are always expressed when the connected allele is dominant, even if only one copy exists.
Recessive traits are expressed only if both the connected alleles are recessive.
Polygenetic traits are basically the traits that are controlled by two or more genes.
Thus, option "3 and 5" is correct.
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After absorption, long-chain fatty acids and monoglycerides inside intestinal cells are:
After absorption, long-chain fatty acids and monoglycerides inside intestinal cells are reformed into triglycerides.
What are triglycerides?Triglycerides are lipids in the body composed of three fatty acids and one glycerol molecule.
Triglycerides are a fundamental lipid in the blood and they serve as a source of high-level energy.
In conclusion, after absorption, long-chain fatty acids and monoglycerides inside intestinal cells are reformed into triglycerides.
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