The bacteria that are responsible for turning nitrogen from the atmosphere into usable nitrogen for plants are commonly called as Rhizobium.
What are Rhizobium bacteria?Rhizobium bacteria are a particular taxonomic group of bacteria that are well known because they are able to fix important amounts of nitrogen present in leguminous plants. These bacteria can generate nodules capable of fixing nitrogen in the air which is then employed by the plant to synthesize biomolecules.
Therefore, we can conclude that Rhizobium represents bacteria that can use the nitrogen in the air to fix it into leguminous plants.
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"Why is each part of the cell essential to survival" please restate this question into a cer form
Each part of the cell is essential to survival because they perform the necessary functions which help keep us alive.
What is a Cell?This is referred to as the simplest unit of life and becomes aggregated to for tissues which have similar structures and functions. Cells undergo different forms of aggregation which results in the formation of organ system and the organism itself as a whole.
Let's take the part of the body such as the nose for example, if the cells are damaged then it will lead to the reduction in its function which in this scenario is trouble smelling correctly. This in turn leads to not being able to detect or move away from hazardous substances and may cause unpleasant circumstances or death in serious cases which is why each part of the cell is essential to survival.
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Which of the following adaptations is the waxy protective covering of a leaf?
Sepal
Cuticle
Pistil
Petals
The waxy protective covering of a leaf is cuticle
What is cuticle in plants ?
The exterior surfaces of the major organs of all vascular land plants have a covering of lipid polymers impregnated with waxes called the plant cuticle. Additionally, it can be found in mosses' sporophyte and gametophyte generations as well as in the sporophyte generation of hornworts. By treating plant tissue with enzymes like pectinase and cellulase, the cuticle of the plant can be isolated intact and forms a cohesive outer covering of the plant.
The waxy protective covering of a leaf is cuticle
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why are vesicles used to transport proteins out of a cell?
they can communicate with other cells.
they protect the proteins from damage.
they contain enzymes needed for protein synthesis.
they signal the cell to open its membrane.
Answer: they protect the proteins from damage.
Explanation: they are way too large to pass directly through membrane
The vesicles are used to transport proteins out of a cell as they protects the protein from the damage due to external environmental conditions. Thus, the correct option is B.
What are protein vesicles?Proteins are synthesized in the ribosomes of rough endoplasmic reticulum. These proteins are then transported to their destination covered inside the vesicles.
Vesicles are the small structures within a cell which consist of the fluid enclosed by a lipid bilayer that is involved in transport of proteins and other molecules, controlling buoyancy, and the enzyme storage.
Proteins which are transported within the vesicles is based upon the selective packaging of the intended cargo proteins into the vesicles that are recognized and fused with the appropriate target membrane only such as cell membrane.
Therefore, the correct option is B.
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The annual fluctuation in carbon dioxide concentration can best be explained by the.
Answer:
Leaf area development, photosynthetic rate, and source-sink ratio responses are considered to be the three main determinants of photosynthetic activity.
Different growth habits on leaf number and blade size are identified as a result of leaf area development in response to stress.
Thus, Option D is correct.
Photosynthesis: 6 CO₂ + 6 H₂O → C₆H₁₂O₆ + 6 O₂
Respiration: C₆H₁₂O₆ + 6 O₂ → 6 CO₂ + 6 H₂O + ATP
Cellular respiration and photosynthesis are complement reactions to each other. These are reverse reactions. In cellular respiration glucose (C₆H₁₂O₆) and oxygen (O₂) yield carbon dioxide (CO₂) and water (H₂O) and energy is released in the form of ATP. In the opposite reaction - in photosynthesis, carbon dioxide (CO₂) and water (H₂O) yield glucose (C₆H₁₂O₆) and oxygen (O₂).
Explanation:
Why is photosynthesis affected by temperature?
The rate of photosynthesis is influenced by temperature. As the temperature rises, photosynthesis proceeds more quickly. This is so because photosynthesis is a chemical reaction, and warmth usually speeds up chemical reactions.
As winter draws near, leaves begin to lose their chlorophyll, and the tree saves its contents for recycling, namely nitrogen, magnesium, and phosphates. The nutrients are transferred from the leaves back into the branches and are then deposited in the bark of those branches.
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Why is facilitated diffusion used to transport bicarbonate across a membrane?
Diffusion of solutes through transport proteins in the plasma membrane is referred to as facilitated diffusion. Passive transport is a subset of facilitated diffusion. Because the solution is traveling down the concentration gradient, assisted diffusion is still passive transport even when it incorporates transport proteins.
We employ assisted diffusion because...
Therefore, polar and charged molecules including ions, amino acids, nucleosides, and carbohydrates can traverse the plasma membrane due to facilitated diffusion. Carrier proteins and channel proteins are the two main groups of proteins that mediate assisted diffusion.
Even though ions are small molecules, the charge they carry prevents them from diffusing through the lipid bilayer of biological membranes. As a result, assisted diffusion is used to transfer them along their gradient of concentration.
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In some cases, people who test positive for genetic testing can receive preventive treatments. For example, people who test positive for the breast cancer genes BRCA1 and BRCA2 can have a preventive mastectomy (breast removal surgery) before they develop the disease. In other cases, no preventive treatments are available, but frequent monitoring can help detect a disease earlier, when it’s more easily treated.
What ethical or professional concerns does a health-care professional need to address when he or she has a patient who wants to prematurely treat a genetic disease? Do you think genetic testing should be part of normal preventive healthcare? Why or why not?
describe two ways that primary producers produce high-energy compounds
Answer:
Photosynthesis uses energy from sunlight, and chemosynthesis uses chemical energy.
Explanation:
Two ways that primary producers produce high-energy compounds are Photosynthesis and chemosynthesis.
Primary producers, additionally called autotrophs, are unit creatures that acquire their ingredients from dead sources and their energy from daylight.
Plants and different living things use a method known as chemical action to remodel lightweight energy into energy which will then be free through respiration to power the organism's activities.
By mistreatment chemicals as their energy supply instead of daylight, bacterium turns out food (glucose) through a method called synthesis. Around hydrothermal vents, synthesis takes place, and gas seeps into the deep ocean wherever daylight isn't a gift.
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What BEST describes the roles of photosystem I and photosystem II in the process of photosynthesis?
A. They form ATP as hydrogen ions cross the thylakoid membrane.
B. They absorb sunlight and distribute the energy as heat.
C. They transfer electrons from a series of intermediates to form NADPH.
D. They absorb sunlight and transfer the energy to electrons.
Which answer choice includes two accurate pieces of evidence for scientists' ideas about the age of earth?
A. The oldest known earth rocks are 5.6 billion years old. Some moon rocks and meteorites have been dated as being 5.6 billion years old.
B. The oldest known earth rocks are 2 million years old. Some moon rocks and meteorites have been dated as being 2 million years old.
C. The oldest known earth rocks are 3.7 billion to 3.8 billion years old. Some moon rocks and meteorites have been dated as being 4.4 to 4.6 billion years old.
D. The oldest known earth rocks 13.6 million years old. Some moon rocks and meteorites have been dated as being 13.8 million years old.
From the dating procedure, the earth have been found to be around 5.6 billion years of age based on the evidence from the meteorites and the rocks.
What is the age of the earth?The age of the earth have been one of the greatest sources of controversy. This is because the evidences that have been used to make the inferences about the age of the earth have been mostly made up of indirect evidences. Most of the indirect evidences that we have gathered have come from the dating of the rocks and the meteorites.
Recall that the rocks are the solid masses that could be found in the outermost portion of earths crust. The meteorites come into our universe from the moon and are also useful for the process of dating.
As such, the oldest known earth rocks are 5.6 billion years old. Some moon rocks and meteorites have been dated as being 5.6 billion years old.
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in 1963, bormann and likens compared the output of two river valleys in the hubbard brook forest, one forested and the other clear cut. what were their findings?
Bormann and Likens compared the output of two river valleys in the hubbard brook forest, one forested and the other clear cut and discovered that deforested valley had higher water flow and increase of nutrient loss.
What is Nutrient?This is referred to as a substance which is derived from different sources and provides the nourishment which is needed for the growth and survival of organisms.
Two scientists known as Bormann and Likens compared two river valleys in which one was forested and clear cut and discovered that deforested valley had higher water flow and increase of nutrient loss.
This is because the lack of trees leads to erosion occurring in the area and loss of nutrients due to the layers of the soil being washed away by water or wind.
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1. Evaluate your exposure to some or all of the indoor air pollutants in your home
2. What would you say is the most surprising?
3. Come up with a plan for reducing your exposure
4. Who do you feel is responsible for this pollution?
How does a volcano affect local population? 4 sentences
Volcanoes affect people because it produces toxic volcanic ashes and problems to the respiratory system, eyes, and skin. It also causes injuries and affects transport and communication problems.
How volcano affects the local population?Volcanoes emit hot, dangerous gases, ash, lava, and rock that are powerfully devastating. People have died from volcanic blasts. Volcanic discharge can result in additional threats to health, such as floods, rockslides, power outages, drinking water contamination, and wildfires. When volcanoes erupt they can spew hot, dangerous gases, ash, lava, and rock that can cause tragic loss of life of people and property, especially in heavily populated areas.
Volcanic activities and wildfires greatly affected 6.2 million people and caused about 2400 deaths between 1998-2017. During volcanic eruptions and their instant aftermath, increased respiratory system morbidity has been observed as well as humanity among those affected by volcanic eruptions.
So we can conclude that Although several factors activate a volcanic eruption, three predominate
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which of the following crosses lipid bilayers the fastest? a small, polar molecule like water a large, polar molecule like glucose a small, nonpolar molecule like oxygen (o2) a sodium ion
A small, nonpolar molecule like oxygen crosses lipid bilayers the fastest.
The cell membrane is made of a lipid bilayer through which the passing of small, nonpolar molecules is easy. This is because the small, nonpolar molecules are soluble in the lipid bilayer.
Molecules like oxygen can easily pass through the cell membrane. However, it is difficult for large, polar molecules to move across the lipid bilayer because polar molecules are not soluble in the lipid bilayer. The smaller, polar molecules that are uncharged can still pass through the cell membrane.
It is due to the hydrophobic nature of the lipid bilayer that polar molecules face difficulty in passing through the cell membrane.
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Read the description below.
Some people can taste PTC (a very bitter substance), while others cannot. The ability to taste this substance is controlled by a single gene. The alleles for tasting PTC are shown with the letter T. The ability to taste PTC is dominant.
Ben’s mom has a heterozygous genotype for the PTC-tasting gene. Ben’s dad cannot taste PTC.
Which Punnett square correctly shows Ben’s parents?
The Punnett square that shows Ben Parents is option (B) since Tt (heterozygous dominant) is for Ben's mom and tt (homozygous recessive) is for his dad.
What is Punnett Square?The Punnett square is a square diagram used to predict the genotypes resulting from a specific cross or breeding experiment. It was created by Reginald C. Punnett in 1905 and bears his name. Biologists use the diagram to determine the likelihood that an offspring will have a particular genotype.
A Punnett Square is a useful tool for predicting the variations and probabilities resulting from cross breeding. This includes predicting the hybridization of plants, animals, and even humans.
Therefore, option (B) Punnett square shows heterozygous dominant as well as homozygous recessive genes for Ben's parent respectively.
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Why are so many big cities located along the banks of a river?
Answer:
because rivers provide easy shipping routes to transportation of goods and people.
Rivers provide great and practical transportation channels for goods, people, and cargo.
Goods can easily be transported up and down waterways rather than on congested roadways. The land is immensely fruitful in river valleys.
Rivers are valued as essential food sources, modes of transportation, defensive positions, and natural habitats. Sharks and other fish species that reside in the water are the sources of the cod liver oil and shark liver oil we consume. These oils offer a variety of advantages.
The closeness of large cities to the sea has contributed to their expansion.
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help me T^T: If an enzyme with an optimal pH of 6, was exposed to a pH of 9, how would this impact the enzymes function?
If an enzyme has an optimal pH of 6 when it is exposed to a pH of 9 the enzyme's function would be altered because the conditions of the media would trigger its denaturation.
What is enzyme denaturation?Enzyme denaturation is the biochemical process in which the tridimensional shape if the enzyme is irreversibly altered as a consequence of abnormal environmental conditions such as the pH of the media, which is associated with the loss of its function.
Therefore, we can conclude that enzyme denaturation would lead to the loss of activity or the enzyme.
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Saltatory propagation occurs in _________ axons, in which action potentials _________.
Saltatory propagation occurs in myelinated axons, in which action potentials from one Ranvier node to another.
What is saltatory propagartion?In neuroscience, saltatory conduction ( Latin meaning - jump') is the propagation of action potentials along myelinated axons from one node of Ranvier to the next node, increasing the conduction velocity of the action potential.
How does saltatory conduction increase the speed of the action potential?By causing the depolarization process to leap from one node to the next, saltatory conduction not only accelerates the transmission of impulses but also conserves energy for the axon by limiting depolarization to the nodes rather than the entire length of the nerve fiber, as in unmyelinated fibers.
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which structure is highlighted? a rounded ridge, located on the posterior side of the femoral head runs aslant from the summit of the greater trochanter.which structure is highlighted? intertrochanteric crest linea aspera gluteal tuberosity lesser trochanter
The bone structure is highlighted a rounded ridge, located on the posterior side of the femoral head runs aslant from the summit of the greater trochanter.
What are bones?Bones are defined as a metabolically active connective tissue that serves as structural support, aids in movement, and protects vital organs.
It can also be defined as rigid body tissue made up of cells embedded in a dense intercellular matrix.
There are four types of bone.
Long boneShort boneFlat boneIrregular boneThus, the bone structure is highlighted a rounded ridge, located on the posterior side of the femoral head runs aslant from the summit of the greater trochanter.
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How does a cell at the end of the first phase of the cell cycle differ from a cell at the end of the second phase
Answer:
In eukaryotic cells, the cell cycle phases are split into two significant phases – interphase and the mitotic phase. While in interphase, the cell significantly grows and replicates a DNA copy, in the mitotic phase or the M phase, the cell splits its DNA into two sets and hence the division of the cytoplasm to form two daughter cells.
Explanation:
have good day
3) Assess the significant difference(s) between the boundary at the
Peru-Chile trench & the boundary between india/Asia that creates the
Himalayas. (Hint: They are the same TYPE of plate boundary, but there's
something else that's different)
They share the same kind of plate boundaries, but there is one difference.
As the Earth's crust is folded and forced upward along convergent plate boundaries, such as the one between the Indian Plate and the Eurasian Plate, towering mountain ranges, like the Himalaya, are formed.
What kind of plate boundary crosses the Tonga trench and Chile?This kind of convergent plate boundary produces some of the most well-known ocean trenches. The oceanic crust of the Nazca plate subducts into the continental crust of the South American plate, creating the Peru-Chile Trench off the west coast of South America.
Explain each of the three types of plate boundaries.1) convergent boundary: When plates move in the same direction, they create a convergent boundary. 2) Divergent boundary: When plates deviate from one another, a divergent boundary is created. 3, the transform border.
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a woman with polycystic kidney disease (an autosomal dominant disorder) is expecting a baby. the baby's father does not have polycystic kidney disease. what is the chance that their baby will be a girl without polycystic disease? for the purposes of this question, assume the woman is *not* homozygous for the polycystic kidney susceptibility trait.
Polycystic kidney disorder (PKD) in Persian cats is an example of an autosomal dominant trait. a girl with polycystic kidney disease (an autosomal dominant ailment) is watching for a toddler.
Polycystic kidney disease (PKD) is an inherited sickness in which clusters of cysts broaden mainly within your kidneys, causing your kidneys to enlarge and lose characteristics over time. Cysts are noncancerous round sacs containing fluid. The cysts range in length, and they can develop very massive.
Polycystic kidney ailment (PKD) is a genetic disease that reasons cysts to grow inside the kidneys, which could disrupt functioning. health complications include excessive blood stress and kidney failure. most of the people with PKD will eventually want dialysis or a kidney transplant. PKD influences about 500,000 human beings within the U.S.
The sickness can reason extreme headaches, which include high blood stress and kidney failure. PKD varies significantly in its severity, and a few complications are preventable. way of life modifications and treatments would possibly assist lessen harm in your kidneys from complications.
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Which of the following is a learned behavior?
Group of answer choices
infant babies breathing as soon as they are born
celebrating our country's independence on the 4th of July
gull chicks pecking at red spot on parent's bill to get food
a disability caused by a genetic defect
Answer: B! Celebrating our country's independence on the 4th of July
-
All babies breathe when they're born, unless there was a birth problem, just like the rest of the living people.
Celebrating out country's independence on the 4th of July can be taught by parents, schools, and anyone.
Gull Chicka pecking a red spot on parent's bill to get food is only to get fed. Think of it sort of like a mother's instinct.
A disability caused by a genetic defect- come on this one is obvious.
if a cell were treated with a drug that prevented the nuclear envelope from reforming, which stage of the mitotic cell cycle would the cell be stuck in?
Telophase stage of the mitotic cell cycle would the cell be stuck in
What is Telophase ?
The fifth and final stage of mitosis, known as telophase, is when a parent cell's replicated genetic material is split into two identical daughter cells. Once the duplicated, paired chromosomes have been split apart and brought to the cell's poles, or opposite sides, telophase has begun. To isolate the nuclear DNA from the cytoplasm, a nuclear membrane develops around each set of chromosomes during telophase. The chromosomes start to uncoil, becoming less compact and dispersed. The cell goes through a process known as cytokinesis, which separates the cytoplasm of the parental cell into two daughter cells, along with telophase.
Telophase stage of the mitotic cell cycle would the cell be stuck in
In Telophase nuclear envelope reform and then cytokinesis occur
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Which is NOT a function of the bacteria
of the microbiome in the body?
A. Regulate immune system
B. Allow growth of disease-causing bacteria
C. Help digest food
D. Produce vitamins
Write five sentences distinguishing between a biome and an ecosystem.
A biome is a collection of various ecosystems that are present inside a habitat, whereas an ecosystem is made up of both living and nonliving components.
A biome contains an ecosystem, which is much smaller than a biome.
Biome:
The biome is made up of many different ecosystems and spans a considerable portion of the earth.Climate elements like snow, ice, temperature, and rainfall are all part of a biome.biomes are impacted by latitude.Various ecosystems are found in biomes .Examples include tundra, taiga, tropical rainforests, grasslands, deserts, and coniferous woods.Ecosystem:
The link between the earth's nonliving and livable components is known as an ecosystem.The ecosystem is unaffected by climate variables.The latitude has no effect on the ecosystem.Both biotic and abiotic elements make up the ecosystem.Examples include freshwater, coral reefs, aquatic environments, and hydrothermal vents.To learn more about difference between biome and ecosystem, visit
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A water molecule could move all the way through a plant from soil to root to leaf to air and pass through a living cell only once. This living cell would be a part of which structure?.
Answer:
the endodermis
Explanation:
Nirenberg and leder used synthetic ‘triplets’ of rna. The purpose of these short rna molecules was to.
The purpose of these short rna molecules was to take the place of part of an mRNA within the ribosome.
In the Nirenberg and Leder experiment, these synthetic RNA triplets were intended to represent the codons that would be present in a genuine mRNA strand. It was discovered that these artificial "codons" may cause precise interaction of amino acid-charged tRNA with ribosomes.
What is Nirenberg and Leder experiment?
In the cell-free systems, Leder and Nirenberg utilized very small synthesized RNA sequences (three nucleotides). These reduced-length fragments were still detectable and long enough for the ribosome to interact with the specific kind of tRNA molecule that is complementary to the one codon. The experiment's crucial step was labeling one kind of amino acid at a time, followed by passing the mixture through a Millipore filter. The ribosomes with the bonded triplet could not pass through this unique filter, but unbound tRNAs could. After then, the sample's radioactivity was checked. The matching amino acid was added if radioactivity was discovered in the sample that did not pass through the filter.
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Explain the role of the cell membrane.
With normal inheritance, ____ of the world’s human population receives an "x" chromosome from their mother and ____ of the world’s human population receives a "y" chromosome from their father.
With normal inheritance, the half (1/2) of the world’s human population receives an "x" chromosome from their mother and all of the world’s human population receives a "y" chromosome from their father.
What is inheritance linked to sex chrmosomes?Inheritance linked to sex chromosomes refers to the genes located on the X chromosome and Y chromosomes. Men receive one Y chromosome from the father, while women have two X chromosomes (one from the mother and the other from the father).
Therefore, with this data, we can see that sex chromosomes are distributed for the mother and father to the offspring.
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Use the table to describe the major types of bodies of water