Research on Effects of drugs on nervous system. Minimum 300 words

Answer:

I think how species are related is because of their blood and how they are alike from other breeds

Explanation:

Answer: It is given Below

Explanation: Because by using a nanometre it is the most accurate for working with cell structure which is very small (most cell organelles are between 1 & 1000 nanometres

Genes that are linked do not assort independently, but they may recombine by crossing over, which is option C, as genes that are linked are located close together on the same chromosome and do not assort independently during meiosis, meaning that they are inherited together as a unit.

Linked genes may be separated by crossing over during meiosis, which is the exchange of genetic material between homologous chromosomes. However, the likelihood of cross-over occurring between linked genes is lower than for genes that are located far apart on different chromosomes. This is in contrast to genes that assort independently, which are located on different chromosomes and are randomly distributed to offspring during meiosis.

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Answer:

the brain makes mistakes because it applies incorrect inner beliefs, or internal models, about how the world works.

Answer:

spines lose less water in hot enviroments and help protect against against animals so B.

Looking at your result from the molecular evidence lab, monkey was most closely related to human.

The nucleotide sequence of a gene or the matching amino acid sequence of a protein can provide evidence for which species belong to a clade.

Molecular evidence provide the evidence of genome.

All of an organism's genetic material is contained in its genome.

Genes and other components that regulate the activity of those genes are contained in its DNA (or RNA in the case of some viruses).

Monkey share 99 percent of our DNA with human, which make them closest relative of human.

Hence, monkey was the most closely related to human.

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Whenever energy is transformed there is always an increase in the entropy of the universe. The correct option is D.

Entropy is a scientific concept as well as a measurable physical property associated with a state of disorder, randomness, or uncertainty.

Energy stored in a well-organized manner (the efficient library) has a lower entropy. The entropy of energy stored in a chaotic manner (the random-pile library) is high.

Although the entropy density of our Universe is remarkably low, owing to the dominance of supermassive black holes.

Even though entropy always increases, entropy density does not in the expanding Universe.

Because all energy transfers result in the loss of some usable energy, every energy transfer or transformation increases the entropy of the universe. Entropy is a measure of a system's randomness and disorder.

Thus, the correct option is D.

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Your question seems incomplete, the missing options are:

A) free energy of the system.

B) free energy of the universe.

C) entropy of the system.

D) entropy of the universe.

E) enthalpy of the universe.

The statement 'mutations affect protein synthesis which impacts the way traits are expressed' BEST supports the claim that mutations are a source of inheritable genetic variation.

Mutations are genetic alterations in the nucleotide (DNA) sequence of the genome of an organism.

Non-silent mutations are those mutations that produce codons that encode different amino acids (i.e., non-synonym codons).

Non-silent mutations have the potential to change the amino acid sequence of the resulting protein (synthesized from a given gene), thereby they impact how phenotypic traits are expressed.

In conclusion, the statement 'mutations affect protein synthesis which impacts the way traits are expressed' BEST supports the claim that mutations are a source of inheritable genetic variation.

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Full Question ;

Which evidence best supports the claim that mutations are a source of inheritable genetic variation?

(1 point)

A Mutations are not inheritable from gametes because they are given from each parent.

B Mutations affect the way DNA is created through transcription.

C Mutations can only happen during meiosis because genes are inherited.

D Mutations affect protein synthesis which impacts the way traits are expressed.

There are four primary categories of energy expenditure, and basal metabolism is one representing the majority of total energy use by the body.

What is Basal Metabolism
 Basal Metabolism is the minimum energy required to sustain life.
Basal metabolism is the number of calories needed by the body to carry out its basic functions such as breathing, moving the heart rate, brain function and various activities in the body over time.
Even when eating, absorbing to processing food also requires calories.
In essence, all the small parts in the body are like engines that burn gasoline as they work.  Never stop during life, even keep working while sleeping.  Just like a car, where when the car starts, gasoline is still used.
The more we move or activity, the more gasoline is burned.  A simple example, the lungs burn energy when breathing.  They will work harder when climbing stairs than when sitting.  That is, whatever we do above the Basal Metabolism level, the more gasoline (energy) we use.  The more active we are in daily life, the more our metabolism will increase.
Another way to increase metabolism is to exercise regularly.  Exercise can not only increase metabolism, but also can burn energy in cells faster.

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Answer:

Interphase begins with G1 (G stands for gap) phase. During this phase, the cell makes a variety of proteins that are needed for DNA replication. During S phase, which follows G1 phase, all of the chromosomes are replicated. Following replication, each chromosome now consists of two sister chromatids.

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Answer:

Chromosome replication

Explanation:

Chromosome replication is a key event during the cell cycle that must be completed before a cell divides. To reproduce successfully, every cell must replicate its chromosome and distinguish these sister chromosomes from one another.

At the end of meiosis I, there are two cells, each cell has seven chromosomes and the chromosomes in each cell are duplicated.

some features of meiotic division:

The diploid cell is transformed into a haploid one during Meiosis I, which separates the pair of homologous chromosomes. It is divided into prophase, metaphase, anaphase, and telophase stages.

Thus, Each daughter cell will have half of the original 7 Pair of homologous chromosomes i.e, 7 chromosomes which are duplicated.

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An ecosystem consists of options e)all the living organisms and all the abiotic factors that influence living organisms.

An ecosystem encompasses not only living organisms such as plants, animals, and microorganisms but also abiotic factors such as sunlight, temperature, water, soil, and air quality. These abiotic factors play a crucial role in shaping the distribution, abundance, and interactions of living organisms within the ecosystem.

Therefore, the correct option is e. all the living organisms and all the abiotic factors that influence living organisms. Together, these components create a complex web of relationships and dependencies, where organisms interact with one another and with their physical environment. This interconnectedness highlights the importance of understanding both the living and non-living aspects of an ecosystem to comprehensively study its functioning and dynamics.

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A decrease in absorbance will be observed over time," is the correct answer.

If the culture is affected by the action of lysozyme, a decrease in turbidity will be observed over time. Lysozyme is an enzyme that degrades the cell wall of bacteria, causing the cells to lyse or rupture. As a result, the number of intact bacterial cells in the culture will decrease, leading to a decrease in turbidity. The decrease in turbidity can be measured by a decrease in absorbance at a specific wavelength using a spectrophotometer. Therefore, option A, "A decrease in absorbance will be observed over time," is the correct answer.

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Mast cells have clathrin.

Clathrin is a protein complex involved in endocytosis and cell signaling, it is found in a variety of cell types, including mast cells. Mast cells are a type of white blood cell that is found throughout the body, they play a crucial role in the body's immune response by releasing various chemicals, such as histamine and cytokines, in response to allergens and other stimuli. Mast cells have many different receptors on their surface that allow them to detect a wide range of signals. These signals can trigger the release of various chemicals from the cell, including histamine and other inflammatory mediators.

Clathrin is a protein complex involved in endocytosis and cell signaling. It is found in a variety of cell types, including mast cells. Endocytosis is a process by which cells take up molecules and particles from their environment.Clathrin is composed of three heavy chains and three light chains, which combine to form a cage-like structure that surrounds and internalizes the target molecule or particle. The internalized cargo is then transported to other parts of the cell or to the cell surface for secretion or recycling.

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The answer is B and C are substrates

This area support can support about 15 bears if each bear eats 10 fish in a day.

Grizzly bears are a large specie of bears. There are different ranges of colors i.e. from very light tan to dark brown. These bears have a dished face, rounded ears, and a shoulder hump. The hump is the place where a mass of muscles attach to the backbone of the bear and gives the bear more strength for digging. Grizzly bears feed mostly on animals that die in the winter season, but the bear can also hunt elk calves. Other items are eaten during spring like grasses, sedges, dandelions, clover, horsetail, and ants. A river provides about 150 fish per day so the carrying capacity of this region has 15 bears.

So we can conclude that 15 bears can be supported by the region without damaging its fish population.

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Plant cells can be distinguished from animal cells by their features such as the presence of a cell wall, chloroplasts, a large central vacuole, and plasmodesmata.

Plant cells and animal cells are two types of eukaryotic cells, but they have distinct features that differentiate them from each other.

One of the main distinguishing features is the presence of a cell wall in plant cells. The cell wall is a rigid structure made of cellulose that surrounds the cell membrane. It provides structural support and protection to the plant cell.

Another feature unique to plant cells is the presence of chloroplasts. Chloroplasts are organelles responsible for photosynthesis, the process by which plants convert sunlight into energy. They contain the pigment chlorophyll, which gives plants their green color. Animal cells do not have chloroplasts.

Plant cells also have a large central vacuole, which is a membrane-bound organelle that stores water, nutrients, and waste products. The central vacuole helps maintain turgor pressure, which is important for plant cell structure and support. In contrast, animal cells have smaller vacuoles or none at all.

Additionally, plant cells often have plasmodesmata, which are small channels that allow for communication and transport between adjacent plant cells. These channels facilitate the exchange of nutrients, hormones, and other molecules. Animal cells do not have plasmodesmata.

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Plant cells have a rigid cell wall, chloroplasts for photosynthesis, large vacuoles, and are connected by plasmodesmata. Animal cells lack a cell wall, chloroplasts, and have smaller vacuoles , these features differentiate plant cells from animal cells.

Cell Wall: Plant cells have a rigid cell wall composed primarily of cellulose. This wall provides structural support and protection, helping the plant maintain its shape. Animal cells lack a cell wall.

Chloroplasts: Plant cells contain chloroplasts, which are responsible for photosynthesis. Chloroplasts contain chlorophyll, a pigment that enables plants to capture sunlight and convert it into energy. Animal cells do not have chloroplasts.

Vacuoles: Plant cells typically have large central vacuoles that occupy a significant portion of the cell's volume. These vacuoles store water, nutrients, and waste products, contributing to cell turgidity and plant growth. Animal cells may have smaller vacuoles or several small vesicles.

Plasmodesmata: Plant cells are connected by plasmodesmata, which are channels that allow direct communication and transport of materials between adjacent cells. Animal cells do not possess this interconnected system.

Shape: Plant cells often have a more regular and fixed shape due to the presence of the cell wall, while animal cells tend to be more flexible in shape.

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Answer:

denoting No freckles: N Freckles: f,

parent 1 genotype: Nf

parent 2 genotype: ff

after using punnet Square the four random combinations are:

Nf, Nf, ff, ff

50% probability that offspring will have freckles

Answer: Genotype of parent 1: Aa

Genotype of parent 2: aa

Probability: 50%

Explanation: The Punnet square is shown in the problem to help you :) Also, these answers are correct because I got these all right on my science quiz just recently!

Answer:

I think the answer is B

Explanation:

Think about it, most people buy stuff without looking at the nutritional facts. That's very important when trying to buy healthy food. I might be wrong and if I am I'm terribly sorry

Answer:

Acrophobia ------- intense fear of heights

Ephebiphobia -----the fear of youth

Answer:

hope your day goes great.

Answer:

True.

Explanation:

in the early 1900s development of Salvarsan, an arsenic-based drug to treat syphilis.

Rosalind Franklin took pictures of the shape of DNA using X-ray crystallography. X-ray crystallography is a method that uses X-rays to form a diffraction pattern of the structure of a molecule.

DNA (deoxyribonucleic acid) is the hereditary material found in most living organisms. It contains the genetic instructions used to develop and function, reproducing all living things. It's a long, twisted, double-stranded molecule that appears like a twisted ladder.

Rosalind Franklin: Rosalind Franklin was an English biophysicist who contributed significantly to the discovery of the molecular structure of deoxyribonucleic acid (DNA), the basis of genetics. In the early 1950s, she took crystallographic pictures of DNA fibers that were critical to identifying the structure of DNA, which James Watson and Francis Crick famously proposed to be a double helix.

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Answer:The white forelock trait is an example of a dominant genetic trait, which means that if an individual has two copies of the dominant allele, they will exhibit the phenotype associated with the trait. In this case, the presence of a white forelock is the dominant trait.

If an individual is homozygous dominant for the white forelock trait, meaning that they have two copies of the dominant allele (WW), then all of their children will inherit at least one copy of the dominant allele. Therefore, all of their children will exhibit the white forelock trait phenotype.

Specifically, if this individual has children with someone who is homozygous recessive for the trait (ww), then all of their offspring will be heterozygous for the trait (Ww) and will also exhibit the white forelock phenotype. If this individual has children with someone who is heterozygous for the trait (Ww), then each child will have a 50% chance of inheriting the dominant allele and exhibiting the white forelock phenotype, and a 50% chance of inheriting the recessive allele and not exhibiting the trait.

Explanation:

Answer: Biotic factors that a population needs include food availability. Abiotic factors may include space, water, and climate. The carrying capacity of an environment is reached when the number of births equal the number of deaths. A limiting factor determines the carrying capacity for a species

Explanation:

In ecological communities, trophic levels are the different positions in the food chain that organisms occupy. The amount of biomass and energy in an ecosystem varies from one trophic level to the next. Each level's position is defined by the feeding relationships among organisms in an ecosystem.

The following factors usually decrease in quantity as the trophic level rises in an ecological community:EnergyContent of food Biomass Number of individuals/ populationIn an ecosystem, the primary producers, such as plants, have the most energy and biomass. As a result, they are the foundation of the food chain. The primary consumers, such as herbivores, consume these producers and are considered the next level in the food chain.

As a result, they will have less biomass and energy than the primary producers. The secondary consumers, such as carnivores, are next in the food chain, consuming the herbivores, and so on. This continues until the highest trophic level, or the top carnivores, is reached.

Because each level receives a lower percentage of energy than the one below it, the amount of biomass and the number of individuals in an ecosystem decreases as the trophic level rises. Therefore, it can be concluded that the quantity of energy, biomass, and number of individuals decreases from low to high trophic levels within an ecological community.

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Explanation:

genotype will be Ww ( W for white dominate and w for brown ressecive.

Answer:

Answer:

A close circuit is a circuit that lets current go through it without stopping.

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Answer:

D

Explanation:

Heart attack

Answer:

D Ribosome

Explanation:

At 12 hours, there are 120 strands of bacteria present.

The population of bacteria can be modeled using the equation P(t) = \(15(2)^(t/4)\), where P(t) represents the number of strands of bacteria at time t in hours.

To find the number of strands of bacteria at 12 hours, we substitute t = 12 into the equation:

P(12) = \(15(2)^(12/4)\)

P(12) = \(15(2)^3\)

P(12) = 15(8)

P(12) = 120

Therefore, at 12 hours, there are 120 strands of bacteria present.

It's important to note that the given population model assumes exponential growth, where the number of strands doubles every 4 hours. Starting with an initial population of 15 strands, the exponent in the equation (t/4) represents the number of doubling periods that have occurred. Each doubling period corresponds to 4 hours of time.

In this case, at 12 hours, three doubling periods have occurred (12/4 = 3). Starting with the initial 15 strands, each doubling period doubles the population, resulting in a final count of 15 * \(2^3\) = 120 strands of bacteria at 12 hours.

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