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Related Questions
Which organism receives the most energy in the food chain
Answers
Answer:
humans
Explanation:
What are the possible benefits and drawbacks of today's system of
taxation?
Answers
Disadvantages of Taxation:
Putting in place an income tax system is quite difficult, especially when trying to control the wealthy and companies.Wealthy people benefit from tax evasion and dishonest avoidance because they can afford to pay for expensive tax "help." Warren Buffet, the famed investor, has been quoted as saying that it is unjust that his secretary pays 30% in taxes but Buffet only has to pay 17% on his income.Some contend that an earnings tax, regardless of its level, may cause financial hardship for people in the lower middle class and lower social classes. Any reduction, no matter how minor, can cause households that are barely making ends meet to significantly lower their standard of living.Advantages of Taxation:
The income tax enables progressive taxing based on your income. In terms of percentage, a person making $15,000 a year will pay less than a person making $150,000 a year. This method of wealth distribution works well.The existing arrangement also provides the government with a reliable source of income.An income tax creates a discrepancy between the value of a person’s work and what they actually receive (disposable income).Learn more about taxes here:
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PLEASE PLEASE HELP !!!
which two statements describe the Mesozoic Era?
A. most of earths history took place within this time
B. it is also known as the Age of Reptiles
C. plants began to colonize land during this Era
D. it lasted from about 250 million years ago to 70 million years ago
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Answer:
it should be B and C!:) im not really sure abt C though.
Calculate the genotypic and phenotypic ratios for the following crosses in peas for height, determined by the T gene. (T is Tall; t is short.)
homozygous dominant crossed with homozygous recessive
homozygous dominant crossed with heterozygous
homozygous recessive crossed with heterozygous
heterozygous crossed with heterozygous
will give thanks and brainliest
Answers
P= 4:0
2. G= 2:2:0
P= 4:0
3. G= 0:2:2
P= 2:2
4. G= 1:2:1
P= 3:1
Hope this helps :)
What part of the brain is the arrow pointing to in the diagram?
Answers
Answer:
The Occipital Lobe
Explanation:
The Brain is the part of the central nervous system enclosed in the cranium of humans other vertebrates, consisting of soft, convoluted mass of gray and white matter and serving to control and coordinate the mental and physical actions.
The Occipital Love is the most posterior love of each cerebral hemisphere, behind the parietal and temporal lobes.
How is carbon dioxide fixed into carbon that is usable for biological life?
Volcanic activity
Decomposition
Photosynthesis
Answers
Answer:
The answer is photosynthesis
Explanation:
carbon dioxide fixed into carbon that is usable for biological life
When proteins unfold due to changes in temperature or pH,
they _______________ (pick 2 responses)
continue to function
don't work anymore
denature
refold into a new shape
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Answer:
When proteins unfold due to changes in temperature or pH, they don't continue to work anymore and denature.
Which of the following is MOST directly involved in the motility and intercellular signaling in T-cells: W) filamentous actin X) 200-nanometer myosin fibrils Y) cathepsin-myosin complexes Z) microvilli
Answers
Answer:
W) filamentous actin
Explanation:
T cells are a type of white blood cells (leukocytes) that play a fundamental role in the immune system by determining the specificity of the immune response to specific antigens. In T cells, the remodeling of the actin cytoskeleton is critical for the movement of these cells through different tissue environments and for adjusting their behavior during the scanning of antigen-presenting cells. The actin cytoskeleton acts as a physical platform for intracellular signaling events that occur at the immunological synapse formed between a T cell and an antigen-presenting cell, thereby contributing to T cell activation.
Which statements describe mass or weight measured in newtons
Measured in kilograms
Does not change when gravity changes
Changes when gravity changes
The amount of matter in something
A gravitational pull
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The statement that best describe mass and weight is that there are both measured in kilograms.
What is mass of an object?Mass is a scalar quantity that measures the amount of matter in an object. It is a fundamental property of an object and is determined by the number of particles and their arrangement in the object.
Mass is often used interchangeably with weight, but they are different concepts. Weight is the force that an object experiences due to gravity, and is proportional to its mass and the local acceleration due to gravity. Mass is a constant, whereas weight can vary depending on the strength of the gravitational field.
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What is the role of countries in the Island ecosystem
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Answer:
As resource depletion is a major issue on islands, the needs of human populations must also be taken into account. On many islands, scientists and managers are studying traditional practices of indigenous populations as potential conservation solutions. In some cases, limited-take systems that serve the community may provide a better alternative to fully closed protected areas, if there are not enough resources for proper enforcement.[26] Public education plays an important role.
Explanation:
Since island ecosystems are self-contained, it should be possible to mitigate many of the threats to species. Ecologists and managers are working together to prioritize areas for conservation and to quickly design and implement action plans. Not everything can be put into a reserve, so it is important to first compile pertinent information and prioritize areas of concern.[22] Once an area has been chosen, managers must then acquire ownership and gain support. Local experts and indigenous populations should also be involved in this process.[22] Having clearly defined goals will facilitate the many necessary interactions between people and agencies.[22] Once a reserve is in place, managers can then practice adaptive management and do continued community education.
Read the bar graph. What data does it provide about the guinea pig pups?
PLSS HURRY
Answers
Answer:
Can you provide the bar graph please?
Explanation:
Tall pea plants are dominant, while short plants are recessive. In a cross between a purebred tall plant and a purebred short plant, the offspring will all be _______ plants.
Tall pea plants are dominant, while short plants are recessive. In a cross between two plants heterozygous for height, the offspring will be both tall and short in a _______ ratio.
Respond to the following based on your reading.
Explain why it's unknown which of two alleles an offspring will obtain from its biological mother or father for a given characteristic.
Reginald Punnett sought to apply the insights obtained by Mendel to explain the laws of inheritance in a structured fashion. What's a Punnett square and how is it used?
You're conducting a science experiment crossing two different purebred mouse strains, which each contain a different variation of the same gene, for two generations. What do you expect to see as the phenotypes of the first generation? The second generation?
How closely do Mendel's insights into dominant and recessive traits match up with the ratios that Punnett calculated in his Punnett squares?
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Assuming complete dominance for all the genes, a) the offspring will all be Tall and heterozygous plants. b) 3:1 ratio. c) Punnett squares are used to combinate the parental gametes and make predictions about the possible genotypes and phenotypes among the progeny. d) First generation 100% heterozygous expressing the dominant phenotype. Second generation: 25% homozygous dominant + 50% heterozygous + 25% homozgous recessive. 75% expressing the dominant phenotype + 25% expressing the recessive phenotype. e) Mendel's insight and Punnett squares match perfectly with the expected ratios.
What are complete dominance and Punnett squares?
Complete dominance is an inheritance pattern that becomes evident in heterozygous individuals. The presence of at least one dominant allele is enougth to hide the expression of the recessive allele. In these cases, the individual expresses the dominant phenotype.
The Punnett square is a graphic representation that shows the different types of gamete combinations according to the alleles involved in a cross.
Punnett square shows the probabilities of getting offspring with different genotypes and their consequent phenotypes.
Tall pea plants are dominant, while short plants are recessive. In a cross between a purebred tall plant and a purebred short plant, the offspring will all be _TALL_ plants.All these plants will be heterozygous and express the dominant phenotype (Tall).
Tall pea plants are dominant, while short plants are recessive. In a cross between two plants heterozygous for height, the offspring will be both tall and short in a _3:1_ ratio.1/4 = 25% of the progeny are expected to be homozygous dominant
2/4 = 50% of the progeny are expected to be heterozygous
1/4 = 25% of the progeny is expected to be homozygous recessive
25% homozygous dominant + 50% heterozygous = 75% dominant phenotype
Punnett squares discriminate parental gametes and combinates them when the columns and the rows meet. The cells where columns and rows meet (gamete combinations) gives the progeny genotypes. Cross: two different purebred mouse strainsParentals) PP x pp
Gametes) P P p p
Punnett square) P P
p Pp Pp
p Pp Pp
F1) 100% heterozygous expressing the dominant phenotype
Parentals) Pp x Pp
Gametes) P p P p
Punnett square) P p
P PP Pp
p Pp pp
F2) Expected Genotypes
1/4 = 25% PP 2/4 = 50% Pp1/4 = 25% pp
Expected Phenotypes
3/4 = 75% Dominant phenotype (PP + Pp)1/4 = 25% Recessive phenotype (pp)Mendel's insights into dominant and recessive traits match up perfectly with the ratios that calculated using a Punnett square.
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Scientific study of the population cycles of the snowshoe hare and its predator, the lynx, has revealed that ________. Question 9 options: A) predation is the dominant factor affecting prey population cycling B) hares and lynx are so mutually dependent that each species cannot survive without the other C) the hare population is r-selected and the lynx population is K-selected D) both hare and lynx population sizes are affected mainly by abiotic factors
Answers
Answer:
A) predation is the dominant factor affecting prey population cycling
Explanation:
Predation is a type of interaction between species where one species called ‘predator’ uses another species, the ‘prey’, as a source of food. Within an ecosystem, the number of predators and prey may vary over time in cycles of time (in these cases, the population cycles of both species are closely linked). In consequence, predation is a density-dependent factor. In the case of the snowshoe hare and its predator, the lynx, when the number of predators is too high, the number of prey drastically decreases. Subsequently, this leads to the decrease of predators that leave their home range (they don’t have enough food to survive), thereby the snowshoe hare population increases again until the peak of the population cycle (carrying capacity), and so successively.
4. Getting a paycheck is a form of positive reinforcement?
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Answer:
Explanation:
Another example of positive reinforcement would be getting paid after going to work. Getting that paycheck at the end of the week or seeing your direct deposit go through increases the likelihood that you will go back to work on Monday. The money is added to your environment, i.e., your bank account.
What makes transmembrane proteins unique to non transmembrane proteins. i.e. what makes them become embedded in the er membrane while others don't?
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Many transmembrane proteins feature as gateways to allow the transport of precise materials throughout the membrane. They frequently undergo large conformational adjustments to transport a substance thru the membrane. they may be commonly exceedingly hydrophobic and combine and precipitate in water.
Transmembrane and peripheral proteins are forms of membrane proteins present inside the cell membrane. Transmembrane proteins form channels and pores to move molecules across the membranes. in the meantime, the peripheral proteins on the extracellular surface are responsible for cellular-cell signaling and interactions.
Transmembrane proteins that amplify via the bilayer w/ part of their mass on either facet are amphipathic. -hydrophobic components (facet chains) interact with hydrophobic tails of lipids. -hydrophilic components are uncovered on both facets of the membrane.
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what interesting research question would you do in space?
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Can gravity form waves?
Does every black hole contain a singularity?
Does sound travel faster in space?
Does the influence of gravity extend out forever?
Galaxies look stationary, so why do scientists say that they rotate?
Have aliens ever visited earth?
Answer: Space is truly a fascinating place. I feel like being in space would inspire me to do research on a question related to/about something historical that happened in space.
Maybe a question like, "How did we "quote on quote" lose the technology to get back into space?" I still don't understand how we could lose some tech so important. I would do further research on if that's really true.
genetic drift is a process that can cause random fluctuations in the frequency of alleles in a population from one generation to the next.
true or false
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Genetic drift is a process that can cause random fluctuations in the frequency of alleles in a population from one generation to the next. The correct answer is true.
Genetic drift is a process that can cause random fluctuations in the frequency of alleles in a population from one generation to the next. It occurs because of the random sampling of individuals that contribute their genes to the next generation. In small populations, the impact of genetic drift can be significant, leading to the loss of genetic diversity and the fixation of certain alleles. In larger populations, the impact of genetic drift is much smaller and is generally overshadowed by other forces such as natural selection.
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Does the father of the first generation have albinism?
Does the mother of the first generation have albinism?
How many carriers in this family?
How many normal people in this family?
How many diseased people in this family?
HELPP the one with the pedigree chart
Answers
The mother of the first generation does not have albinism, there are 7 carriers in this family, there are 11 normal people in this family, and 7 diseased people in this family.
What is a genealogical pedigree of a given inherited disease state?A genealogical pedigree of a given inherited disease state refers to the presence of a deleterious variant that is present in a family and can be traced through their descendence.
Therefore, with this data, we can see that the genealogical inheritance pattern of a given inherited disease state is possible to be identified.
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A book that weighs 5 newtons is sitting on a table 1.5 meters above the floor. How much gravitational potential energy does the book have?
6.5 joules
4.5 joules
7.5 joules
3.33 joules
Answers
Answer:
7.5 this is the right answer.
Researchers have been studying different types of grasses and have learned that certain species will benefit from being grazed by other organisms. What type of relationship would this behavior represent?
Answers
The behavior you described, where certain species of grass benefit from being grazed by other organisms, represents a mutualistic relationship. Mutualism is a type of symbiotic relationship in which both participating organisms derive benefits from their interaction.
In this case, the grasses benefit from being grazed because the act of grazing stimulates their growth and helps them maintain optimal health. Grazing removes the top portions of the grass, which promotes new shoots and stimulates lateral growth.
Additionally, grazing can prevent excessive shading and allow sunlight to reach lower parts of the grass, aiding in photosynthesis.
On the other hand, the organisms that graze on the grass, such as herbivores or grazers like cattle or certain insects, benefit from the food source provided by the grass. Grazing animals obtain nutrition from consuming the grass, which is a source of energy and nutrients.
Thus, the mutualistic relationship between the grasses and the organisms that graze on them is characterized by reciprocal benefits. The grasses benefit from the stimulation of growth and maintenance, while the grazers benefit from the food resource.
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Consider the model of cell reproduction. Select ALL of the statements that apply.
A This model results in two identical daughter cells.This model results in two identical daughter cells.
B This model shows asexual reproduction.This model shows asexual reproduction.
C This model results in two unique daughter cells.This model results in two unique daughter cells.
D This model shows sexual reproduction.This model shows sexual reproduction.
E This model shows mitosis.
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Through mitosis, somatic and germ cells divide to produce two daughter diploid cells that are identical to the parental one. A) This model results in two identical daughter cells. B) This model shows asexual reproduction. E) This model shows mitosis.
What is mitosis?
Mitosis is a cell division process through which a diploid somatic cell (2n), produces two identical daughter diploid cells (2n).
During mitosis, the whole-cell first suffers duplication of its content and then it separates. Mitosis occurs in somatic cells and in germ cells.
In this example, we can see
One cell with two chromosomes (step 1). This cell duplicates its content, and now each chromosome is composed of two chromatid sister (step 2). Chromosomes move to the equatorial plane where they align (step 3) and then each chromatid separates from the sister chromatid and moves foward one of the cell poles (step 4). The cell divides and the two resulting cells have two chromosomes, just as the parental cell (step 5)A) This model results in two identical daughter cells.
B) This model shows asexual reproduction.
E) This model shows mitosis.
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As a result of your Zombie Apocalypse, the grass at a local park will no longer be mowed. What type of succession is this (primary or secondary)? Describe the stages of succession that will occur in the next 100 years.
What type of succession is this depicting?
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Secondary succession is the kind of succession that might develop in a neighborhood park after the Zombie Apocalypse if the grass wasn't cut anymore and pioneer species would first colonize the bare soil.
Thus, pioneer species like weeds and grasses would colonize the bare soil and disturbed regions in the initial stage of secondary succession. These species can swiftly adapt to a new habitat since they are frequently resilient and rapidly developing.
In secondary succession, the pioneer species are the early settlers multiply and spread, the soil conditions become more stable and draw in additional species like shrubs and tiny trees. These animals are modifying the environment in a way that makes it possible for bigger and more diversified populations of creatures to live in more complicated settings.
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Which of the following is the primary source of oxygen in the Earth's atmosphere?
OA
plants
OB
animals
OC
factories
OD
bacteria
Reset
Submit
Answers
Answer:
Oa
Explanation:
bcz primary is a form of plants type so thats why its OA
If a newborn baby weighs 8 pounds and 4 ounces how much does it weigh in grams
Answers
3856 :)
Have a good day
Answer:
3810.18 value 454
Explanation:
if the baby is 8 pounds and 4 oz
Study the image of the plant shown.
Which best describes the plant?
vascular because it has spores
vascular because it has true roots
nonvascular because it has spores
nonvascular because it has true roots
Spores
harro
True roots
Answers
Answer:
It is vascular because it has true roots.
Explanation:
Vascular plants evolved true roots made of vascular tissues. Compared with rhizoids, roots can absorb more water and minerals from the soil. They also anchor plants securely in the ground, so plants can grow larger without toppling over.
Answer:
It's B
Explanation:
Please help me with this to fill in the black correct answers. This is specifically anatomy and physiology science
1. The reproductive system has both endocrine and exocrine functions. The exocrine function is stimulated by this hormone produced in the anterior pituitary______ and produces this in the female _____.
2. The endocrine function is stimulated by this hormone in the anterior pituitary_____ and produces this in the female_____
3. The reproductive system has both endocrine and exocrine functions. The exocrine function is stimulated by this hormone produced in the anterior pituitary______ and produces this in the male____
4. The endocrine functions is stimulated by this hormone in the anterior pituitary _____ and produces this in the male_____
Answers
1. The exocrine function is stimulated by this hormone produced in the anterior pituitary: follicle-stimulating hormone (FSH), and produces ova (eggs) in the female.
2. The endocrine function is stimulated by this hormone in the anterior pituitary: luteinizing hormone (LH), and produces estrogen and progesterone in the female.
3. The exocrine function is stimulated by this hormone produced in the anterior pituitary: luteinizing hormone (LH), and produces sperm in the male.
4. The endocrine function is stimulated by this hormone in the anterior pituitary: follicle-stimulating hormone (FSH), and produces testosterone in the male.
1. The exocrine function of the reproductive system in females is stimulated by the hormone produced in the anterior pituitary called follicle-stimulating hormone (FSH), which promotes the production of ovarian follicles. The exocrine product in females refers to the release of eggs or oocytes from the ovaries during ovulation.
2. The endocrine function of the reproductive system in females is stimulated by the hormone luteinizing hormone (LH) produced in the anterior pituitary. LH triggers the release of estrogen and progesterone from the ovaries, which regulate the menstrual cycle, promote the development of the uterine lining, and prepare the body for pregnancy.
3. The exocrine function of the reproductive system in males is stimulated by the hormone produced in the anterior pituitary called luteinizing hormone (LH), which stimulates the production of testosterone in the testes. Testosterone is the primary male sex hormone and is responsible for the development of male reproductive organs and secondary sexual characteristics.
4. The endocrine function of the reproductive system in males is stimulated by the hormone follicle-stimulating hormone (FSH) produced in the anterior pituitary. FSH promotes the production of sperm cells (spermatogenesis) in the testes.
Overall, the reproductive system has both endocrine and exocrine functions, with the anterior pituitary gland playing a crucial role in regulating these functions through the production of specific hormones.
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I NEEED THE ANSWER ASAP PLEASE What is the difference between a sound wave and a light wave? Select all that apply. A A sound wave can travel in outer space. A light wave cannot travel in outer space. B A sound wave is a mechanical wave. A light wave is an electromagnetic wave. C A sound wave can travel in a vacuum. A light wave cannot travel in a vacuum. D A sound wave travels using charged particles. A light wave travels using a medium. E A sound wave needs a medium to travel. A light wave does not need a medium to travel. F A sound wave is considered a disturbance. A light wave is considered a periodic disturbance.
Answers
Answer:
B
Explanation:
light can travel through space sound can't???
Problem arising that need solution wen doin seed priming
Answers
Answer: light, aeration, temperature, time and seed quality
In what two ways is nitrogen "fixed"?
Answers
For the growth and development of plants, nitrogen is a crucial ingredient for all living things. However, plants cannot easily access nitrogen in its elemental form for use. This is due to the fact that plants must "fixate" nitrogen, a fairly inert gas, in order for it to be utilised by them.
What is the way of using nitrogen ?
Nitrogen is "fixed" primarily by biological fixation and industrial fixation. The process by which nitrogen is changed from its elemental form into one that plants can use is known as biological fixation. Some bacteria, like Rhizobium, which are found in the roots of leguminous plants, carry out this process.
These microorganisms transform the atmospheric nitrogen into a form of nitrogen that plants can utilise. Nitrogen fixation, also known as nitrification, is a crucial step in the growth and development of plants. The process by which nitrogen is changed from its elemental form into one that plants can use is known as industrial fixation. Large industrial operations, like the Haber-Bosch process, use this procedure.
In this procedure, nitrogen and hydrogen gases are mixed to create ammonia, which is subsequently applied to crops as fertiliser. Because it enables the productive production of fertilisers rich in nitrogen, this process is crucial for the large-scale production of food. In conclusion, there are two primary methods that nitrogen is "fixed": biological fixation and industrial fixation.
There is biological fixation. Industrial fixation occurs during huge industrial operations like the Haber-Bosch process, which is carried out by specific bacteria that reside in the roots of leguminous plants. For plants to grow and develop as well as for the effective production of food, both of these processes are necessary.
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Which of the following is not a cause of water pollution?
a jet fuel
b laundry soap
c ammonia
d none of the above
Answers
Answer:
D) none of the above
Explanation:
took the quiz on edgenudity
The right answer is (a) jet fuel.
What is water pollution?Water pollution refers to the presence or introduction of harmful substances or pollutants into bodies of water such as lakes, rivers, oceans, and groundwater.
These pollutants can come from a variety of sources, including natural and human-made sources. While there are many different types of pollutants that can cause water pollution, some of the most common sources of water pollution include:
Industrial waste: Industries and factories release a variety of pollutants into water bodies, such as chemicals, heavy metals, and organic compounds.
Agricultural runoff: Fertilizers and pesticides used in agriculture can leach into waterways and cause significant pollution. Agricultural runoff can also contain soil, animal waste, and other contaminants that can degrade water quality.
Sewage and wastewater: Sewage and wastewater from homes and businesses contain a wide range of pollutants, including human waste, chemicals, and pharmaceuticals. These pollutants can have serious impacts on aquatic life and human health.
A jet fuel is not typically a cause of water pollution. While spills of jet fuel or other petroleum products can occur and can cause significant harm to aquatic ecosystems, they are not one of the most common causes of water pollution.
The most common causes of water pollution include things like industrial waste, agricultural runoff, sewage and wastewater, and improper disposal of household chemicals and medications.
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