Which of the following processes would increase variation in a population?

1. Adding a new food source to the environment.
2. Inheritance of random portions of genes from each parent.
3. A population choosing to remain in the same environment.
A decrease in mutations due to a stable environment.

Answer:

Small Intestine & Pancreas

Explanation:

They are both involved in chemical digestion.

Hershey and Chase would almost certainly have come to the conclusion that proteins are the source of heritable information in bacteria.

It is highly likely that Hershey and Chase would have concluded that Proteins are the source of heritable information in bacteria if the descendants of bacterial cells infected with radioactively labeled proteins were found to exhibit radioactivity in their experiment.

If the proteins that the bacteriophage had radioactively labeled entered the bacterial cells as part of the infection process and were radioactive, this would indicate that proteins, not DNA, were the source of heritable information. This is NOT the outcome of their experiment.

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(complete question)

if Hershey and Chase had found the radioactive protein in both the pellet and the supernatant of the phage-infected bacteria, what would have been their likely conclusion about the nature of genetic material?

1. 3 Doctors visits (3%) out of 100 were related to Flu in the first week of 2017.

2. Flu seasons peaks at different times each year; week 11 in 2016, week 7 in 2017, and week 5 in 2018

3. Flu is not the most common reason patients visit their doctors during the flu season because the maximum percentage of flu-related visits was 7% in 2018.

4. In the 2017-1018 flu season, the flu season began to peak earlier and also had the highest peak as shown in the graph.

5. I would recommend individuals get the flu vaccine around weeks 4 and 46 because that period marks the beginning of the peak of influenza.

The Flu season is a yearly recurring time period marked by the predominance of an influenza outbreak. In both hemispheres, the season falls during the colder part of the year. It takes around two days for symptoms to appear.

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The structure that filters out impurities and harmful substances in the lymph are called a lymph node.

Lymph nodes are small, bean-shaped structures that are found throughout the body but are most concentrated in the neck, armpits, and groin.

They are part of the lymphatic system, which is a network of vessels and structures that help to remove excess fluid and waste products from the body.

Lymph nodes act as filters for lymph, which is a clear, watery fluid that travels through the lymphatic vessels. As lymph flows through the lymph nodes, it is screened for impurities and harmful substances, such as bacteria and cancer cells.

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Answer:

somthing

Explanation:

somthing

Climate affect human activities in South America as the food and water supplies get disrupted, and it has led to deforestation.

A significant issue in South American developing nations is deforestation. Bolivia, Brazil, and Peru are all producers that support economic expansion; yet, deforestation is a cost of doing so. By removing these trees and other vegetation, less space will be left for animals to find food, cover, and breeding grounds.

Latin America and the Caribbean (LAC) have been severely impacted by the global economic crisis. The purchasing power of all households, but mainly the poorer ones who spend a big portion of their income on food and transportation, has been weakened by rising gasoline and food prices.

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Prokaryotic cells - contain DNA, were the first photosynthetic organism on earth.

Eukaryotic cells - can be specialized for specific tasks in multicellular organisms, contain DNA.

Prokaryotic cells are primitive cells with no nuclei and membrane-bound organelles. Eukaryotic cells, on other hand, are more advanced. They contain nuclei and membrane-bound organelles such as mitochondrion, chloroplasts, etc.

Both cells, however, contain DNA. The DNA of prokaryotic cells lie freely within the cytoplasm while that of eukaryotic cells are enclosed within the nucleus and organelles like mitochondrion.

Prokaryotic cells represent the first photosynthetic organisms on earth according to the theory of origin of life. Eukaryotic cells evolved later and these cells can be specilaized for specific tasks in multicellular organisms. They can form tissues, organs, and systems.

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The stomach, a large, muscular organ that resembles a sac, secretes gastric juices and hydrochloric acid that turn food into chyme.

Gastric digestive juices are secreted by the stomach, an organ that resembles a sac. The stomach's pH ranges from 1.5 to 2.5. The chemical decomposition of food and the absorption of nutrients both depend on this extremely acidic environment. Gastric digestive fluids are secreted by the stomach, an organ that resembles a sac. In the stomach chamber, an enzyme known as pepsin is responsible for protein digestion. Stomach. After food enters the stomach, digestive juices are combined with food and liquid by the stomach muscles.

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Codons are units of genomic information made up of three nucleotides (trinucleotides) in DNA or RNA that code for a specific amino acid or indicate the end of protein synthesis (stop signals).

An amino acid is encoded by a codon, a triplet of nucleotides. An amino acid is encoded by each trio of nucleotides. A, U, G, and C are the four nucleotides found in mRNA, and together they can be combined in 64 distinct ways because codons are three-letter structures. The remaining three of these 64 codons are stop signals that signal the completion of protein synthesis, and 61 of these codons correspond to amino acids. UAG, UAA, and UGA are the three STOP codons found in the genetic code.

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Answer:

The offspring of the Pacific ridley sea turtle will receive 28 chromosomes from each parent, for a total of 56 chromosomes. The Pacific ridley sea turtle has two sets of chromosomes, one from each parent, and each set contains 28 chromosomes, for a total of 56 chromosomes.

give me brainiest

Axon terminals of sensory neurons are first synchronized with interneurons before chemical signals are transmitted through a second synapse, resulting in motor neuron-mediated states. An example is an interneuron.

Sensory nerve endings near the surface of the skin relay signals to neurons in the dorsal root ganglion and then to the spinal cord, where the signals are passed to relay neurons in the thalamus, the primary somatosensory regions of the cerebrum. terminates in sensory neurons. cortex.

Sensory neurons have dendrites at each end and are connected by long axons with a central cell body. A motor neuron has a cell body at one end, a dendrite at the other end, and a long axon in the middle.

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Option A, Describing a person as having hemophilia is to indicate his or her genotype. Hemophilia is a genetic disorder that is caused by a mutation in the gene that codes for clotting factors.

The genotype refers to the genetic makeup of an organism, including the combination of alleles that it carries for a particular trait or disorder. In the case of hemophilia, the person has inherited a specific allele or combination of alleles that causes the Hemophilia disorder. The genotype is what determines the phenotype, which is the observable characteristics or traits of an organism. In hemophilia, the genotype is the tendency to bleed excessively due to the lack of clotting factors. Hemophilia is usually inherited in an X-linked recessive manner, but it can also be autosomal recessive or acquired.

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Blood flow through the heart via arteries, ventricles, veins, and valves.

1. An electrical signal is sent to the heart

2. Signal from the atrium's nodes

3. The atria agreement

4. The atrioventricular node receives a signal

5. Signal sent to the ventricles

6. Contraction of the ventricles

The complete question:

"place the steps describing how blood flows through the human heart in order.

signal transferred to the ventricles

the atria contract

electrical signal travels toward the heart

the ventricles contract

signal by the nodes in the atrium

signal received by the atrioventricular node."

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The energy transformation that occurs in a flashbulb is the conversion of chemical energy into both electromagnetic energy and thermal energy.

The chemical energy is stored in the flashbulb and is released when the bulb is triggered. This energy is then converted into both electromagnetic energy, which is the light that is emitted from the bulb, and thermal energy, which is the heat that is generated from the bulb.

The light and heat that is produced is then used to illuminate the area that the flashbulb is pointed at. This energy transformation is a very efficient process, as the chemical energy is converted into both light and heat, allowing for a bright and powerful light source.

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The coefficient of relatedness between sisters in haplodiploid eusocial insects is 0.75.

Haplodiploid eusocial insects are characterized by the fact that they have a single parent and the offspring are haploid. This means that the father's contribution to the offspring is limited to half the genetic material, while the mother's contribution is complete. This results in sisters having a coefficient of relatedness, or r, of 0.75 because they share 75% of their genes.

Haplodiploidy is a reproductive system found in many species of eusocial insects, such as ants and wasps. In this system, the female produces haploid eggs that develop into male offspring, while the female offspring are produced from diploid eggs.

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If there were no snakes, there would be no predators to prey on the rats and keep them out of control. This will increase the rat population. An increase in the number of rats will lead to more rats eating grain, and this can lead to damage to agriculture by farmers.

So. that farmers need a safe way to control pests, namely using biological pest control.

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Mutation, genetic drift, gene flow and natural selection can increase variation in a population.

Mutation is the process by which new genetic variations arise within a population.

Genetic drift is a random fluctuation in the frequency of alleles in a population.

Gene flow is the movement of alleles into or out of a population as a result of migration.

Natural selection is the process by which certain traits become more or less common in a population over time due to the increased or decreased likelihood that individuals with those traits will survive and reproduce.

The order of insects that is also known as stoneflies is Plecoptera.

Stoneflies are an order of insects that are closely related to mayflies and are characterized by their two pairs of wings, long antennae, and aquatic nymphs. They are also called Plecopterans. Stoneflies are found on every continent except Antarctica, with majority of species found in cool, running waters, such as streams and rivers.

They are commonly found near water surface and are considered as an important indicator of healthy aquatic ecosystem. The adults of most species have short life span only a few days to couple of weeks. They are not considered pests and are not known to cause any significant damage to crops/ buildings.

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Hershey and Chase proved that the t2 phage's genetic makeup is represented by DNA.

In a series of well-known tests, Hershey and Chase proved that the T2 phage's genetic makeup is DNA.

Hershey and Chase came to the conclusion that the genetic substance was DNA, not protein. They discovered that although the bacteriophage built a protective protein shell around itself, its capacity to create offspring inside a bacterium was imparted by internal DNA.

The last experiment, also known as the Waring Blender experiment, in which Hershey and Chase demonstrated that phages only injected their DNA into host bacteria and that the DNA acted as the replicating genetic element of phages, is the Hershey-Chase experiment that is most well-known.

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A gradual leak that forms over time can easily move from the soil into the groundwater and from the groundwater into the surface water.

Toxic material is stored in underground storage tanks, including waste oil and gasoline, which contains harmful chemicals that can harm developing children and cause cancer. Chemicals in USTs have a rapid soil migration rate and can contaminate groundwater. For several of these dangerous compounds, there is no acceptable level of exposure.

From the soil into the groundwater and from the groundwater into the surface water, a slow leak that develops over time can easily spread. It is possible that the groundwater will no longer be suitable for irrigation, which may be disastrous for many people, especially the local farmers.

To eliminate underground storage tank releases, EPA collaborates with its state, territorial, tribal, and business partners (USTs). Releases can affect indoor air, groundwater, surface water, or soil if they are not treated to.

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A gradual leak that forms over time can easily move from the soil into the groundwater and from the groundwater into the surface water.

Toxic material is stored in underground storage tanks, including waste oil and gasoline, which contains harmful chemicals that can harm developing children and cause cancer. Chemicals in USTs have a rapid soil migration rate and can contaminate groundwater. For several of these dangerous compounds, there is no acceptable level of exposure.

From the soil into the groundwater and from the groundwater into the surface water, a slow leak that develops over time can easily spread. It is possible that the groundwater will no longer be suitable for irrigation, which may be disastrous for many people, especially the local farmers.

To eliminate underground storage tank releases, EPA collaborates with its state, territorial, tribal, and business partners (USTs). Releases can affect indoor air, groundwater, surface water, or soil if they are not treated to.

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Polysaccharides come in two different varieties in plants: starch and cellulose. Their structures and purposes, however, are distinct.

While cellulose is employed for structure and support, starch primarily serves as a means of energy storage.

In order to maintain the stability of the structure of plant cell walls, cellulose, a hard, fibrous, and water-insoluble polysaccharide, is crucial. The fibrils (bundles of microfibrils) that contain cellulose chains are known as microfibrils, and the fibrils themselves are made up of bundles of polysaccharide. These bundles together make up the plant cell wall.

The carbohydrate starch, which is made up of -glucose polymers, is insoluble and non-structural. As a thick, osmotically inert form of energy storage, it is created by plants and algae.

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Answer:  Chromosomes

Explanation:

Genes are found on tiny spaghetti-like structures called chromosomes (say: KRO-moh-somes). And chromosomes are found inside cells.

Lysosomes  Uses chemicals to break down food and worn out cell parts - I clean things up! Hint: Lysol. (found in BOTH PLANTS + ANIMALS because...)

Lysosomes are membrane-bound organelles present in many animal cells.  They are spherical vesicles that contain hydrolytic enzymes capable of degrading a wide range of biomolecules.

A lysosome contains a unique mix of membrane proteins as well as lumenal proteins. The pH of the lumen (4.5-5.0)[2] is optimum for the enzymes engaged in hydrolysis, which is equivalent to stomach action. Aside from polymer breakdown, the lysosome is engaged in a variety of cell functions such as secretion, plasma membrane repair, apoptosis, cell signaling, and energy metabolism.

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The best-supported conclusion about genetic versus environmental trait determination would depend on the specific observations and the pattern of inheritance of the trait in question.

If a trait appears to be consistently present in multiple generations of a family and is transmitted in a pattern consistent with Mendelian inheritance (for example, genetic dominant or recessive), it would suggest that the trait is determined primarily by genetics. If a trait is not consistently present in multiple generations of a family, or is not transmitted in a genetic Mendelian pattern, it would suggest that the trait is influenced by environmental factors. It's also possible that a trait is influenced by both genetic and environmental factors, which can make it difficult to determine the extent to which each factor contributes to the trait.

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There are two drawbacks to therapeutic cloning are it would require a large quantity of eggs and there is always a risk of cell mutation.

In order to create embryonic cell lines with the same genome as the nuclear donor, therapeutic cloning involves transferring nuclear material extracted from a somatic cell into an enucleated egg.

The min two disadvantages of therapeutic cloning are:

1) Cell mutation is a constant risk: Mother Nature can be both predictable and inconsistent at the same time. The entire crop of navel oranges we have is the result of a single mutation. Even when genetic transfer is done using somatic cells, mutations can still happen randomly. The expected division of embryos has been disrupted by these abnormalities. When applied to a patient, some have even raised the possibility of malignancies.

2) It would need a large amount of eggs: The number of eggs required for therapeutic cloning is estimated to be over 1 million by the best sources. An estimated 400,000 eggs have been kept in cold storage in the US over the last 20 years. To start the process of healing sickness, the amount of eggs would have to be doubled. Then, we must understand that the 1,000,000 amount is a necessary annual quantity. 980,000 additional eggs would be required for storage in order to speed up the cloning process.

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Answer:

The shape or arrangement of a strand of DNA is called its "secondary structure."

Explanation:

The secondary structure of DNA refers to the way the DNA strand is folded and twisted. The most well-known secondary structure of DNA is the double helix, which is made up of two complementary strands of DNA that run in opposite directions and are held together by hydrogen bonds.

The double helix shape is considered as the "B" form of DNA. However, DNA can also assume other secondary structures such as A, Z and C forms, depending on the environmental conditions such as pH, salt concentration, temperature, etc.

These different forms of DNA secondary structure can affect the accessibility of DNA to regulatory proteins and have implications in different biological processes.

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The basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed is called a Cell.

The smallest and basic form of life is defined as cell. One of the scientist who used a light microscope is Robert Hooke in 1665 to discover a cell.

In all life forms, including bacteria, plants, animals, and humans, the cell is defined as the most basic structural and functional unit. Cells are generally classified as prokaryotic cell or eukaryotic cell. Now Prokaryotes are single-celled  organisms that do not have membrane-bound nuclei but the cells of eukaryotes do have organelles which are membrane-bound and a nucleus which are membrane-bound. In larger organisms, their  cells combine to make form tissues which are groups of similar cells carrying out similar functions.

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Answer:

uplift

because mountain go high in the sky

Answer: A: uplift

Explanation: Mountains are built by tectonic processes that cause portions of the Earth's crust to rise. These processes are fueled by the escape of heat from the interior of the Earth, causing crustal uplift by volcanic activity and by movement along faults that, in turn, is responsible for the formation of mountains.