Drag the tiles to the correct boxes to complete the pairs. Math the modes of transport to the molecules

When a photoreceptor is in the dark, the on-center bipolar cells will hyperpolarize, which will lead to a decrease in firing in the on-center ganglion cell. When a photoreceptor is in the dark, the off-center bipolar cell will depolarize, which will lead to an increase in firing in the off-center ganglion cell.

In the dark, photoreceptors are not stimulated by light. When a photoreceptor is in the dark, the on-center bipolar cells, which receive input from the photoreceptor, will hyperpolarize. Hyperpolarization means that the bipolar cell's membrane potential becomes more negative, reducing its activity. This hyperpolarization is due to the inhibitory neurotransmitter released by the photoreceptor, which decreases the release of excitatory neurotransmitters onto the bipolar cell. As a result, the on-center ganglion cell, which receives input from the bipolar cell, will also have a decrease in firing rate.

On the other hand, the off-center bipolar cell, which also receives input from the photoreceptor, will depolarize in the dark. Depolarization means that the bipolar cell's membrane potential becomes more positive, increasing its activity. This depolarization is due to the lack of inhibitory neurotransmitter released by the photoreceptor onto the off-center bipolar cell. Consequently, the off-center ganglion cell, which receives input from the depolarized bipolar cell, will experience an increase in firing rate.

Overall, when a photoreceptor is in the dark, the signaling pathway involving on-center bipolar cells and on-center ganglion cells is inhibitory, leading to a decrease in firing. In contrast, the pathway involving off-center bipolar cells and off-center ganglion cells is excitatory, resulting in an increase in firing.

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Answer:

B

Explanation:

Answer:

The organism's genotype encodes their phenotype because the genotype corresponds to the characteristic that is determined by genes —formed by fragments of DNA— which are transcribed into mRNA to be translated into amino acid sequences in the synthesis of proteins, determining the morphological and functional characteristics of an organism, that is, its phenotype.

Explanation:

Genotype corresponds to the genetic information contained in the DNA, according to the sequence of nucleotides in its molecular structure. This genotype includes characteristics or polymorphisms that define the appearance and function of living beings.

Each DNA molecule constitutes a chromosome, formed by genes —DNA fragments— each of which determines specific characteristics.

When DNA is transcribed into mRNA, information is being sent that is necessary for the incorporation of amino acids into a protein that is being synthesized. The proteins, in turn, determine morphological and functional characteristics that constitute the phenotype of an individual.

Answer: South pole.

Explanation:

The equator is filled with non-circumpolar stars which means the stars sets in the sky. The north and south pole is full of circumpolar stars which means they never set.

If two photographers take time-lapse photos of the night sky with one being at the equator and the other at the south pole, the photo by the photographer at the south pole will show stars that never rise or set.

The stars that never rise or set is known as the circumpolar stars and are usually found close to either of the earth's poles - north or south pole.

This means that the photographer at the equator which is an equidistance from the two poles will not be able to capture the circumpolar stars.

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The sugar molecule represents the most stored chemical energy. Thus, the correct answer is Option B.

Sugar (glucose, C₆H₁₂O₆) is a biological molecule that stores energy in its chemical bonds, not the molecule that initiates the process of cellular respiration During cellular respiration, glucose is broken down in a series of chemical reactions to produce energy ATP (adenosine triphosphate).

The process of cellular respiration begins at the stage of glycolysis, where glucose in the cytoplasm of the cell is partially broken down into pyruvate molecules and then the pyruvate molecules are broken down again in the presence or production of oxygen (aerobic respiration). fermentation in the absence of oxygen depending on whether oxygen is present

During aerobic respiration, pyruvate enters mitochondria and undergoes the citric acid cycle (also known as the Krebs cycle) and the electron transport chain These processes release energy from glucose chemical bonds to produce more ATP.

Therefore, sugar (glucose), although it stores energy in its chemical bonds, is not the molecule that initiates cellular respiration. Instead, during cell respiration, glucose is broken down and energy is released in the form of ATP.

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Complete question:

Which feature of the model represents the most stored chemical energy?

A. The oxygen gas molecule

B. The sugar molecule

C. The water molecule

D. The carbon dioxide molecule​

A mutation that reduced uracil formation would affect DNA replication in the following way: DNA synthesis depends on the synthesis of a short strand of RNA primer, thus DNA synthesis would be negatively impacted. The correct option is E.

This is because uracil is found in RNA, not DNA, but it still plays an important role in DNA replication. During the process, a short RNA primer containing uracil is synthesized to provide a starting point for DNA synthesis.

If uracil formation is reduced, this RNA primer synthesis could be impaired, leading to difficulties in initiating DNA replication. As a result, DNA synthesis would be negatively impacted, potentially causing errors and disruptions in the replication process. The correct option is E.

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Answer: methane, nitrogen dioxide, and particulate matter

Explanation:

did it on USA test prep

The spinal cord is partitioned into an inner gray matter region, and an outer white matter region.

The most crucial element joining the body and the brain is the spinal cord. The first or second lumbar vertebral level is where the spinal cord joins the medulla, which is where it extends from the foramen magnum. It is a crucial link that connects the body and the brain in both directions. The spinal cord measures 1 to 1.5 cm in diameter and 40 to 50 cm in length. On each of its sides, two rows of nerve roots follow one another. 31 pairs of spinal nerves are created as a result of the distal fusion of these nerve roots. The spinal cord is a cylinder-shaped mass of evenly distributed white and gray matter in the neurological system.

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Does it have legs? (Yes/No)

Yes: Go to 2

No: Go to 3

Does it have more than 4 legs? (Yes/No)

Yes: Grasshopper

No: Snake

Does it have eight legs? (Yes/No)

Yes: Spider

No: Grab

To formulate a dichotomous key using the given organisms (snake, grasshopper, crab, spider), we can follow this structure:

Does the organism have legs?

Yes: Go to question 2.

No: It's a snake.

Does the organism have more than four legs?

Yes: Go to question 3.

No: It's a grasshopper.

Does the organism have a hard exoskeleton?

Yes: It's a crab.

No: It's a spider.

This dichotomous key helps differentiate between the organisms based on their characteristics. By answering the questions sequentially, one can identify the correct organism.

It starts by determining if the organism has legs or not, leading to the snake if it lacks legs. If the organism has legs, the key proceeds to assess the number of legs, identifying the grasshopper if it has four or fewer legs.

Finally, the presence or absence of a hard exoskeleton distinguishes between the crab and spider, with a hard exoskeleton indicating a crab and its absence indicating a spider.

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Answer:

B

Explanation:

Answer:

B

Explanation:

Took the test.

In response to the hormone cholecystokinin, the pancreas secretes a fluid that contains enzymes and bicarbonate. Therefore, the correct options are option c.

enzymes and option e. bicarbonate. Cholecystokinin, also known as CCK, is a peptide hormone released by I cells in the duodenum, the first portion of the small intestine. This hormone is secreted in response to the presence of food, particularly fat and protein, in the stomach and small intestine. The hormone cholecystokinin stimulates the pancreas to secrete its contents, which include enzymes and bicarbonate.

The pancreas produces three main types of enzymes that aid in the digestion of carbohydrates, proteins, and fats, respectively. Bicarbonate neutralizes the acidic contents of the stomach, allowing for the digestive enzymes to function at a more favorable pH. This neutralization process is important because the digestive enzymes that the pancreas releases are sensitive to pH changes.

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Answer:

Punnet square

Explanation:

I am pretty sure this is it

By using Punnett square we can determine the probability that an organism's expressed version of a trait will be passed on to its offspring.

Reginald. C Punnett invented the Punnett square, a square shape diagram used to forecast the genotype and phenotype of offspring from a breeding experiment by crossing the genes of the parents.

The diagram's number of Punnett squares is determined by the number of attributes employed. After creating the boxes, one parent's gene is placed on top and the other parent's gene is placed on the left side.

In the event of a monohybrid cross, just one letter with a single characteristic crosses one box, whereas two letters with two separate traits cross one box.

The number of alternative genotypes of offspring is obtained by crossing the characteristic.

Thus, the Punnett square helps in determining the probability that a trait will be passed on to its offspring.

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Answer:

living things that are capable of reacting to stimuli, reproduction, growth and homeostasis.

Explanation : I think it is B because a cladogram shows how species are related AND also shows the evolution between them.

The human retinal pigment epithelium (H-RPE) consists of pigmented cells located between the neuroretina and the choroids. The H-RPE is produced from hexagonal cells organized into a monolayer that is densely full of pigment granules.

The retinal pigment epithelium is a fundamental aspect of the retina that performs essential roles in visible features. harm to the shape and characteristic of the retinal pigment epithelium ends in the diffusion of retinopathies, and there may be currently no healing remedy for these disorders.

The human retinal pigment epithelium (H-RPE) includes pigmented cells located among the neuroretina and the choroids. The H-RPE is constituted of hexagonal cells organized into a monolayer that is densely filled with pigment granules.

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Explanation:

They all are made of atoms. And of matter and energy

DNA replication is considered semiconservative because "each daughter DNA molecule consists of one strand from the parent DNA molecule and one new strand" is the correct answer.

DNA replication is the process of copying DNA to create a new strand of DNA. During DNA replication, the DNA double helix unwinds and separates into two separate strands. Each of these strands serves as a template for the new strand of DNA. A new strand of DNA is built by matching up complementary nucleotides, the building blocks of DNA.

Once the new strand is complete, two identical DNA molecules have been created. Each daughter DNA molecule consists of one strand from the parent DNA molecule and one new strand.

This was first proposed by Watson and Crick in 1953. DNA replication is an essential process for the growth and repair of cells. Without DNA replication, cells would not be able to divide and grow.

Additionally, DNA replication plays a critical role in maintaining the integrity of the genetic material. Errors during DNA replication can lead to mutations that can cause diseases like cancer.

Therefore, DNA replication is considered semiconservative because of the two different types of strands in the newly synthesized DNA.

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The divide into the five kingdoms that we see today was not first produced by the taxonomy of living things.

Carolus Linnaeus created the first two-kingdom classification, which only included the kingdoms Plantae and Animalia. The two-kingdom classification existed for a very long time, but it was not enduring since it ignored numerous significant aspects. It was impossible to discriminate between eukaryotes and prokaryotes, monocellular and multicellular creatures, and photosynthetic and non-photosynthetic species. Simply classifying all of the creatures in the plant or animal kingdoms was insufficient because many species could not be classified as either plants or animals.

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Cocoliztli was a deadly disease for the native people of Mexico that killed nearly 80% of the population due to fever and bleeding from ears and nose.

Cocoliztli was an epidemic disease in the Mexico where people suffered from fever and extensive bleeding from the ears and nose. It also caused malnourishment in the population. The doctors of that time were even unable to identify the root cause of that disease. The disease first occurred in year 1545 and then again in 1576.

Fever is the state of the body where the temperature of the body rises above from the normal. The normal temperature for human body is around 98.6°F. As the temperature rises above it, the body is said to be in fever.

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Answer:

The correct answer is true.

Answer: B. True

Reason:

Hope this helps

Individual differences in an organism's appearance and behavior are present even among populations. Some characteristics are invariably transmitted from parents to children.

The population is expanding quickly. Unique reproduction and survival. Traits, inheritance, and selection pressure are the three criteria necessary for natural selection to take place and lead to evolutionary change. A progressive process by which hereditary qualities spread more or less within a population as a result of those traits improving the population's environmental fitness. Natural selection, genetic drift, and gene flow are the three primary factors that drive allele frequency change. Many different factors contribute to evolution. They are geographic isolation, mutation, genetic drift, and natural selection.

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A phenotypic trait that is expressed in both the homozygous (aa) and heterozygous (aa) genotypes is said to be dominant.

Dominance is a genetic inheritance pattern where a dominant allele overshadows a recessive allele. Dominant alleles are represented by capital letters, while recessive alleles are represented by lowercase letters in the genetic code of an organism.

A dominant allele will produce the corresponding phenotype in a heterozygous or homozygous dominant individual. However, in a heterozygous individual, the recessive allele is masked by the dominant allele.Dominant traits are those that manifest in an individual when a dominant allele is present. These traits can be seen in both homozygous and heterozygous individuals.

For instance, curly hair is a dominant trait; a person with curly hair may have either two dominant alleles (CC) or one dominant and one recessive allele (Cc). In both cases, the individual will have curly hair, so the trait is dominant.

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Answer:

it is term to the power of the White blood cells

Answer:

4.they are made up of DNA wrapped around proteins

The terrestrial system characterized by evergreen shrubs, mild, wet winters, and warm, dry summers is called chaparral. This vegetation in this region has adapted to frequent fires and is either fire-resistant or uses fire to germinate its seeds.

Chaparral is a Mediterranean climate's ecosystem. It is characterized by mild, wet winters and warm, dry summers, as well as a diverse plant community that has adapted to frequent fires. The vegetation in this region is either fire-resistant or uses fire to germinate its seeds. Fire is necessary to remove dead plant material and return nutrients to the soil in this area.

Without regular fires, the chaparral would eventually become a dense forest and lose its distinctive characteristics.The plants in chaparral region:Some of the common plants of the chaparral include chamise, manzanita, ceanothus, toyon, and scrub oak. The vegetation in this area, which is adapted to fires, has the capacity to sprout new growth from a living root crown or underground bulb. Some plants also have seeds that require heat from a fire to germinate.

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Answer: digestion

Explanation:

1. The trait depicted in the chart is inherited in autosomal recessive manner.

This is understood by the equal proportion of affected males and females, as well as the skipping of generations.

2. The carriers are marked as shown in the image attached below.

3. The carriers cannot be identified in the generation III because the pedigree is not determined of generation IV. Knowing the genotype of generation IV helps to identify the carriers of the preceding generation.

4. The offspring of generation II have inherited the trait from their father.

5. Carriers are only depicted in pedigrees that include recessive traits. This is because if a disease is inherited in an autosomal dominant manner, the individual with heterozygous dominant genotype will also be affected.  

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