D. 35 kg-m/s east is their combined momentum after the collision
Momentum after a collision is it zero?Momentum is preserved when two objects collide. The ultimate momentum is not zero since the beginning momentum is not. They can't both be at ease. One of the objects may be at rest following the impact.
Consequently, the system's overall momentum will be preserved because it was constant before and after the impact.
Collisions between two objects naturally fall under Newton's third rule of motion. When two objects collide, forces of equal magnitude and opposing direction are applied to each item. Such pressures frequently result in one thing gaining momentum and gaining speed while the other object slows down (lose momentum).
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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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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 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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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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suppose that a new river cuts through a land mass, separating populations of mice on either side. these mice then evolve into new species on the two sides of the land mass. this is an example of evolution by
Geographical isolation (vicariance) is the main reason for the evolution of either side mouse into new species.
What is geographical isolation?
Two populations of the same species are geographically separated by a barrier, they will eventually become genetically distinct from one another. Even when they are exposed to the same kinds of environmental selection forces and are living in the same region, two populations of the same species can yet become genetically distinct from one another.
A new river cuts through a land mass, separating populations of mice on either side. these mice then evolve into new species on the two sides of the land mass, the separation of a group of organisms by a geographic barrier, resulting in the differentiation of the original group into new varieties or species.
Hence, vicariance is a kind of evolution caused by geographical isolation.
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if a eukaryotic cell has a diameter that is 10 times that of a bacterial cell, proportiannly how much more surface area woulf the eukaryoticv cel have
Answer:
100 times
Explanation:
[tex]10^{2} = 100[/tex]
How do cells become specialized?
Genetically identical cells undergo differentiation to alter gene expression.
Genetically identical cells undergo differentiation to alter gene expression.
Mitosis creates genetically unique cells that can do different tasks.
Mitosis creates specialized cells for different purposes.
Genetically identical cells undergo differentiation to make them genetically unique.
Cells become specialized when Genetically identical cells undergo differentiation to alter gene expression.
When cell differentiated into specialized form it is needed to manipulate only those genes that will be expressed .During the development of an organism, cells differentiate into many types of cell. A differentiated cell has become different from the embryonic cell that produced it, & specialized to perform certain tasks some examples includes photosynthesis , relaxation and contraction .
Cell specialization occurs mainly through gene expression . Gene expression is defined as specific combination of gene that are turned off and on for cell to function .
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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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in a hardy-weinberg population with two alleles a1 and a2 that are in equilibrium, the frequency of the allele a2 is 0.3. what is the frequency of individuals that are homozygous for this allele?
There are 32 people that are homozygous for this allele in the population.
The Hardy-Weinberg equation states that p + q = 1 thus the sum of allele frequencies for all the alleles at the locus must be 1. Additionally, the Hardy-Weinberg equation is written as follows: p2 + 2pq + q2 = 1, where p is the population's frequency of the "A" allele and q is the population's frequency of the "a" allele.
The frequency of the homozygous genotype AA is represented by p2, the homozygous genotype AA is represented by q2, and the heterozygous genotype Aa is represented by 2pq in the equation.
Here, q = 0.2. In light of this, p = "1- q = 1 - 0.2 = 0.8.
As previously stated, the population of heterozygous individuals will now be 2pq, or 2 * 0.8 * 0.2 = 0.32.
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Question 1 of 20:
Select the best answer for the question.
1. Unlike the IQ, your emotional intelligence (EQ)___
A. can be discovered through your academic grades.
B. may be improved over time by becoming more mindful.
C. can only be developed during childhood.
D. is a set value that never changes.
PLEASE HELP!!!!
Unlike the IQ, your emotional intelligence (EQ): (B) may be improved over time by becoming more mindful.
IQ is the Intelligence Quotient of a person. The IQ of a person is analyzed by performing certain standard tests. In terms of psychologists, IQ is the measure of fluid and crystallized intelligence. A person with high IQ has more reasoning and problem-solving abilities.
Mindfulness is the ability of a person to completely focus on the current task. It is the state of being fully aware about the the surroundings and with one self. This ability can be achieved and enhanced using meditation.
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During ___, the first phase of cell division, chromosomes condense as the nuclear membrane starts to disappear.
The chromosomes condense as the nuclear membrane begins to disappear during prophase, the first phase of cell division.
What stage does chromosomal condensation begin?The process of cell division is classified into 4 stages, prophase, metaphase, anaphase, and telophase.The cell starts to prepare itself to separate the chromatids and divide during prophase, the initial stage of mitosis. The nuclear membrane and nucleolus disintegrate during prophase, and the chromosomes condense. At the cell's opposing poles, the centrioles and spindle fibers start to develop.The parent cell's chromosomes, which were duplicated during S phase, condense and get much smaller than they did during interphase during prophase.The prophase is the beginning of the cell division process, which is characterized by the condensation of chromosomes and the disappearance of the nuclear membrane.To know more about prophase refer:
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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.
What affect does alcohol concentration have on cell membrane permeability?
Answer:
At high concentrations, alcohols reduce bilayer stability (12, 21) and break down the lipid bilayer barrier properties, causing increased ion permeability (14, 15).
Explanation:
As the ethanol concentration increases, membrane permeability will increase. If the ethanol concentration is high enough, enough phospholipids will dissolve to cause the plasma membrane to disintegrate completely which will kill the cell.
Explanation:
At high concentrations, alcohols reduce bilayer stability (12, 21) and break down the lipid bilayer barrier properties, causing increased ion permeability.
Question 8
1 pts
A(n)_________ occurs when Earth is closest to the Sun, while a(n)_______ occurs when Earth is
farthest from the Sun.
periapsis; apoapsis
aphelion; perihelion
O apoapsis: pariapsis
Operihelion: aphelion
a population of birds, with various size beaks, eats seeds. small seeds can be eaten by birds with small beaks. larger, thicker seeds can only be eaten by birds with larger, thicker beaks. suppose there is a shortage of small seeds but that there are still many large seeds. (use for 4, 5, 6
The birds in the population that will have the highest fitness will be the ones having larger, thicker beaks.
The theory of natural selection states that organisms that have better adaptations to survive in an environment are able to survive and pass on their characteristics to their offspring.
In the case above, the larger, thicker-beaked birds have a higher level of fitness when the conditions in the place change and there are only large seeds remaining. As a result, the larger, thicker-beaked birds will be able to survive and pass on their characteristics to the offspring.
Although a part of your question is missing, you might be referring to this question:
A population of birds, with various size beaks, eats seeds. small seeds can be eaten by birds with small beaks. larger, thicker seeds can only be eaten by birds with larger, thicker beaks. suppose there is a shortage of small seeds but that there are still many large seeds. Which birds in this population have the highest fitness?
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How does locoweed keep from poisoning itself?
Granite soils in foothills and plains that are decomposing. Even when dried, locoweed is deadly at all times.
How can locoweed prevent self-poisoning?
The enzyme alpha-mannosidase, which is necessary for normal sugar metabolism in cells, is inhibited by the indolizide alkaloid swinsonine, which is present in all parts of the plant.
How can I remove locoweed?
The most effective method of reducing locoweed is foliar sprays, which penetrate through the leaves to the roots. The most typical method of treating locoweed is a mixture of picloram and 2,4D. A kind of weevil has just been shown to be able to consume the roots of plants and eradicate weeds.
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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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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
how matter change during cellular respiratory
The cell takes energy from oxygen and glucose creating water and carbon dioxide
due to their chemistries, are hormone whose receptor will be inside the cell, while hormones will have their receptor on the cell membrane.
Steroid hormone are hormone whose receptor will be inside the cell and Protein hormones have their receptor on the cell membrane
Contrary to steroid hormones, which are lipid in composition and can easily enter the cell, proteinaceous signaling molecules must have their receptors anchored in the plasma membrane since proteins cannot cross the membrane. The receptor for protein hormones is membrane-associated and embedded in the plasma membrane of the cell's surface. When a hormone interacts with a receptor, a series of secondary effects are frequently triggered in the cell's cytoplasm.
These effects can include the phosphorylation or dephosphorylation of numerous other cytoplasmic proteins, modifications to ion channel permeability, or elevated levels of intracellular molecules that may serve as secondary messengers. Target cells include steroid hormone receptors on their plasma membrane as well as in their cytoplasm and nucleus. They are typically nuclear or cytoplasmic intracellular receptors that start signal transduction for steroid hormones and cause changes in gene expression over the course of hours to days.
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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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Question:
7.) How might coating the lungs in oil or water vapor change the rate of cellular
respiration?
Answer:
Cellular respiration
Explanation:
Cellular respiration is the process in which the cells of all living things break down glucose with oxygen to produce carbon dioxide and water
Define Evolutinary Adaptation. How are symbiotic relationships a form of evolutionary adaptations?
Evolutionary Adaptation refers to the changes in phenotypic features associated with fitting an environment. Symbiotic relationships represent a form of evolutionary adaptation because these associations may shape the evolution of species.
What does Evolutionary Adaptation mean?Evolutionary Adaptation is the process by which species change to fit an environment, which is associated with differential reproduction and survival across time, i.e., natural selection. Symbiotic relationships are related to this process because it increases the fitness of species.
Therefore, we can conclude that Evolutionary Adaptation is a process in which species change over time to fit an environment, which may be due to Symbiotic relationships.
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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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I need 7,8, and 9 please
Answer:
7. D
that's all I can help you with
Describe the structure of large vacuole. And describe the function
HELP……ASAP…….HURRY…..
Dan received the coordinates from him before he put the micro back in his pocket. Equatorial coordinates are those that use this system. The other two coordinates, which specify a body's direction, allow for direct measurement based on techniques used in the design and operation of astronomical instruments.
Explain about the coordinates Shanghai China?
Shanghai's name in Mandarin Chinese is Shànghai, which is represented by the Chinese character. Because Shanghai used to be close to the East China Sea, the name means "On-the-Sea." Today, Pudong is significantly larger thanks to soil from the Yangtze River, and central Shanghai is only about 40 kilometers (25 miles) from the ocean.
The city is situated on the East China Sea coast between the bay of Hangzhou to the south and the Yangtze River mouth (Chang Jiang) to the north. The municipality's territory encompasses the city proper, the nearby suburbs, and a rural hinterland.
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solve for A
P=a-b-1
this is for math I didn't mean to click science
When you solve the equation for A, you are making A the subject of the equation. It becomes A = B + 1 + P.
Change of subject of equationsChanging the subject of an equation for a specific component requires the component is made the subject.
In the equation: P = A - B - 1
In order to make A the subject, it has to be carried across the other side of the equation. When this is done, we will have:
P - A = -B - 1
Next would be to move P to the other side of the equation. When you move P to the other side, we have:
- A = -B - 1 - P
Divide both sides by negative in order to cancel out the - sign on A. What we will have left is:
A = B + 1 + P
Thus, when A is made the subject of the equation, it becomes A = B + 1 + P.
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If in an equation, P=A-B-1, solve for A.
many cells make and use an enzyme, called catalase, to facilitate the decomposition of hydrogen peroxide (h2o2). the products of the decomposition are hydrogen (h2) and oxygen (o2).
The products of the decomposition are hydrogen [tex]H2[/tex] and oxygen [tex]O2[/tex] is [tex]H2O2[/tex]. Many cells make and use an enzyme, called catalyze to facilitate the decomposition of hydrogen peroxide.
What are enzymes?Enzymes are the biological catalyst that speed up the chemical reaction that carries out in the body. Enzymes has been protein by nature and there has number of the enzymes present in our body such as salivary amylase, pepsin, renin, lyases, lygases etc.
The main function of the enzyme has to make the metabolism fast as well as speed up the chemical reaction carried out in the body.
Therefore, The products of the decomposition are hydrogen [tex]H2[/tex] and oxygen [tex]O2[/tex] is [tex]H2O2[/tex]. Many cells make and use an enzyme, called catalyze to facilitate the decomposition of hydrogen peroxide.
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"There are five different types of nucleotide bases found in living things. Which is an accurate comparison of the bases found in birds and the bases found in flowers?"
A Birds and flowers have different arrangements of the bases.
B Birds have fewer bases in their cells than flowers do.
C Birds and flowers have different types of bases.
D Birds and flowers have the same arrangement of the bases.
Birds and flowers differ genetically and are, therefore, different in the arrangements of their nucleotide bases. Option A.
DNA sequence of organismsAll living organisms have DNA as their molecule of hereditary. The DNA of all living organisms is similar in terms of components.
Every DNA contains:
nucleotide bases: adenine, guanine, cytosine, and thymine.deoxyribose sugarphosphate groupWhat makes each living organism unique is the arrangement of the nucleotide bases. The nucleotide bases form complementary pairs in the DNA double helix structure.
In other words, two organisms of different species may have the same composition in terms of their DNA, what makes them unique is the arrangement of the nucleotide bases in their DNAs.
Hence, birds and flowers have different arrangments of their DNA bases because they are different in terms of species.
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