Consider these phylogenetic trees. The first tree is based on physical characteristics. The second tree is based on structure, genetics, and evolutionary history.

2 phylogenetic trees are shown. The first tree has 3 branches that go to duck, platypus, and opossum. The second tree has 2 branches that go to duck and platypus. Opossum branches off of the platypus branch.

Which can be concluded from a comparison of the two phylogenetic trees?
A: Phylogenetic trees are not subject to change.
B: Classification can change with new discoveries and evidence.
C: Classification does not change with more evidence.
D: Phylogenetic trees are inaccurate.

As rain and heat are becoming more common, the mosquito population rises and as a result, illness tends to spread more during this period. An illustration of a vector organism is the mosquito.

Children who struggled to concentrate in class back when Celie was in college were disciplined. As a teacher with 23 years of experience, she now sees the same conduct being handled as a medical condition that can be identified and treated with prescription medications rather than as a disciplinary matter. As rain and heat are becoming more common, the mosquito population rises and as a result, illness tends to spread more during this period. An illustration of a vector organism is the mosquito.Poor areas are less likely to have access to wholesome meals and fresh vegetables as a result, which encourages residents to buy more canned and fast food. Robert Straus distinguished between two methods of doing medical sociology: the sociology "of" medicine and the sociology "in" medicine. This distinction is the foundation for the difference between empirical research and health ethics as well as empirical data of medical ethics.

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Other features possessed by this organism are the cephalothorax, a pair of compound eyes, a pair of antennae, a pair of mandibles, pereiopod, keliped, and pleopod.

Crustaceae is a group of anthropods that live in fresh water and sea water. But there are several groups of crustaceans that are able to adapt to life on land. Crustaceans live as carnivores and herbivores or parasites that have an exoskeleton in the form of hard body skin or cuticles. Examples of crustaceans are shrimp and crab.

The characteristics of crustaceans are as follows: The body of a crustacean consists of a cephalothorax or two parts, a fused thoracic head and abdomen or hind abdomen. On the head and thorax protected by the carapace, there are a pair of antennae, a pair of compound eyes, a pair of antennae and a pair of mandibles. The cephalothorax is protected by an exoskeleton. Crustaceans have four pairs of walking legs/pereiopods and one pair of capid or keliped legs. On each segment of the abdomen there are also pleopod pants or swimming legs.

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The correct option is B ; Adenine and guanine are purines , The purines in DNA are the same as those in RNA: adenine and guanine. Cytosine and thymine are the pyrimidines in DNA;

cytosine and uracil are the pyrimidines in RNA. Purines are larger than pyrimidines because they have two rings, whereas pyrimidines only have one.

Purines are adenine (A) and guanine (G), while pyrimidines are cytosine (C), thymine (T), and uracil (U). These are the most important components of nucleic acid, and the sequence of these molecules contains genetic information.

A DNA molecule's nucleic acid strands are antiparallel to one other. Nucleic acids are produced via phosphodiester linkages that connect complementary nucleobases.

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The magnitude of the source charge that generates an electric field of 1236 N/C at a distance of 4 m is 2.2 µC. This can be calculated using the formula for electric field, which is given by E = kq/r2, where E is the electric field, k is the Coulomb's constant, q is the charge of the point, and r is the distance from the point. Rearranging the formula to solve for q, we get q = Er2/k. Plugging in the values, we get q = (1236 N/C)(4 m)2/(8.99 × 109 Nm2/C2) = 2.2 × 10-6 C = 2.2 µC. Therefore, the magnitude of the source charge that generates an electric field of 1236 N/C at a distance of 4 m is 2.2 µC.

Answer:

2.2

Explanation: EDGE.

Smallest and slowest somatosensory afferents process is: (a) temperature, pain and itch.

Somatosensory refers to the part of the nervous system that deals with the receptors of touch pain, temperature and body position. The stimulus could be received from multiple areas like muscles, joints, skin, and fascia. There are 5 types of somatosensory receptors in the body: mechanoreceptors, thermoreceptors, proprioceptors, pain receptors, and chemoreceptors.

Afferent refers to the network of nerve cells that bring information in the form of signals from the different parts of the body to the brain. The afferent process transmits signals towards the cell body of the nerve cell.

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Answer:

Anaphase

Explanation:

the cells are starting to pull apart to form two identical cells

Sexual reproduction is usually more advantageous than asexual reproduction because the environment is constantly changing.  This greater genetic diversity increases phenotypic diversity. In other words, it increases the physical diversity of organisms.

The benefits of Sexual Reproduction bring genetic variation to offspring. Changes allow species to adapt to new environments and provide survival advantages. The disease is less likely to affect all individuals in the population.

Sexual reproduction allows the reconstruction of genetic material within and between individuals of generations, which can result in an extraordinary diversity of offspring, each with a different genetic make up than their parents.

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Human ABO groups are best described as an example of Multiple allele.

'What is multiple allele?'

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The dominant generation of plants is the one that performs the majority of photosynthesis.

Using water and carbon dioxide, photosynthesis is a crucial process that occurs in plants and blue-green algae to produce organic compounds or carbohydrates. As a consequence of this process, oxygen is produced. They are regarded as autotrophs since they prepare their own food.

The "dominant generation of plants" is therefore the group of plants that are more obvious, more self-sufficient, and more photosynthetic. Plants benefit from this dominance by surviving and developing from one generation to the next. The sporophyte generation is dominant in most plants, including all angiosperms and gymnosperms, since it is typically larger, more durable, and frequently able to generate several offspring.

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Answer:

yes there are converted into harmless forms

Answer: a. Personality Traits

One of the two bodies held together after DNA replication, each having an exact copy of the DNA is the best definition or description for "chromatid".

The duplicated half of a chromosome is referred to as a chromatid. Each chromosome is composed of only one DNA molecule prior to replication. The DNA molecule is duplicated during replication, and the two molecules are referred to as chromatids. These chromatids split longitudinally at the conclusion of cell division to produce various chromosomes. Homozygous refers to two chromosomal pairs that are genetically identical. If mutations do occur, they will, however, only show up as slight variations, in which case they will be heterozygous. The number of homologous copies of each chromosome, which should not be confused with the pairing of chromatids, is what determines the ploidy of an organism.

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Answer:

a. True

Explanation:

The two neuron chain allows increased communications and control the effector organ. the cell bodies of the preganglionic neurons in the sympathetic division are located... Which of the following parasympathetic nerves controls the production of tears, nasal secretion and saliva.

Answer: ATP,chemical,photosynthesis,respiration,energy,plant

If the bacteria appear to have a round shape and a pink color. based on this information, you would classify these bacteria as Gram-negative cocci.

The color of a Gram stain is purple. The bacteria in a sample will either remain purple or change color to pink or red when the stain combines with them. In the event that the microorganisms stay purple, they are Gram-positive. Gram-negative bacteria are those that turn pink or red. Gram-negative microscopic organisms have cell walls with slim layers of peptidoglycan (10% of the cell wall) and high lipid (unsaturated fat) content. Under Gram stain, they appear pink to red as a result of this.

coccus, or Cocci, is a bacterium with a spherical shape in microbiology. Numerous bacterial species have distinctive arrangements that can be used to identify them.

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In a subsequent experiment, rats received an injection of a drug that blocked na channel rat would lose its sense of smell.

A drug that operates as a sodium channel blocker would prevent the generation of action potentials within the olfactory nerve and therefore result in no olfactory information being transmitted to the brain for further processing.

If the drug was injected directly into the olfactory bulb prior to conditioning, it would likely reduce the strength of the conditioned response, as the drug would interfere with the neural pathways that form the connection between the conditioned stimulus and the response. Additionally, it could impair the formation of new memory or learning, as the neural pathways associated with memory formation are also disrupted.

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Cellular structures that are assembled in the nucleus, exit the nucleus to get to the cytoplasm: nuclear pores complexes.

The nuclear pore complexes are the only channels through which small polar molecules, ions, and macromolecules travel between the nucleus and the cytoplasm.

The transfer of genetic instructions in DNA to mRNA in the nucleus is called transcription. It has three steps: initiation, elongation, and termination. After mRNA is processed, it carries the instructions to a ribosome in the cytoplasm. Translation takes place at the ribosome, that consists of rRNA and proteins.

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The correct order is 1,3,

(1) The mitochondrial protein is synthesized in the cytosol.

(3) The protein is delivered to the translocation apparatus on the mitochondria.

What is mitochiondria?

The majority of the chemical energy required to drive a cell's metabolic operations is produced by mitochondria, which are membrane-bound cell organelles (mitochondrion, singular). Adenosine triphosphate, a tiny molecule, serves as a storage container for the chemical energy generated by the mitochondria (ATP).

Within seconds or minutes of their release from ribosomes, proteins released into the cytosol are typically picked up by the matrix of mitochondria. Precursor proteins for mitochondrial proteins are first fully generated in the cytoplasm before being transported into mitochondria by a posttranslational mechanism. A protease in the mitochondrial matrix quickly removes the signal sequence that most mitochondrial precursor proteins carry at their N terminus following import. The import of the proteins containing the signal sequences is both possible and required.

As a result, the mitochondrial protein is created in the cytosol, supplied to the mitochondrial translocation apparatus, and then the receptor on the mitochondrial membrane binds the protein's signal sequence.

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Sweating, glandular secretion, arterial blood pressure, smooth muscle, and the heart are all controlled by the autonomic nervous system.

These four basic types human tissue are fibrocartilage, epithelial tissue, muscle tissue, and nerve tissue. Connective tissue supports and holds other tissues together. Epithelial tissue provides the coating.

Tissues: Tissues is a collection of cells with a common structure and function that work as a single unit. The body's tissues give it form and aid in energy storage and heat retention. Connective tissue, epithelial, muscle tissue, and nervous tissue are the four different types of tissues.

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Changes in the environment and the creature in question's behavioral habits can be blamed for the existence of vestigial structure. The likelihood that future kids would inherit the "normal" form of the trait declines as the trait's survival-enhancing function declines.

Vestigial structures are ones that don't seem to serve any purpose and look like leftover pieces from an ancestor. Vestigial structures include things like the human appendix, a snake's pelvic bone, and the wings of birds that can't fly. A characteristic that a species received from an ancestor but that is currently less complex and useful than in the ancestor is referred to as a vestigial structure. In most cases, the appendix, coccyx (the tail bone), and tonsils are examples of vestigial organs in humans. The tiny wings of kiwis and emus are also well-known examples, as are the eyes of blind cave salamanders and fishes.

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Water, which can easily move through cell membranes, is the chemical most likely to be involved in simple diffusion.

Simple diffusion requires relatively small, non-charged molecules to move through the membrane. Small nonpolar molecules like carbon dioxide and oxygen gas are able to diffuse through the plasma membrane with ease.

Because it is a tiny molecule, water can easily pass through a cell membrane even though it has lipid tails. Osmosis is the name for water diffusion. Due to its tiny size and nonpolar nature, oxygen can easily pass through a cell membrane.

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In order for the homologous regions of the normal and inverted chromosomes to align, the chromosomes must loop and pair during meiosis, where one of the homologs exhibits the inversion.

In order for the inverted region to pair with the corresponding region on the homologous chromosome, it must form a loop allowing the homologs to align along its length. After mating, crossovers occur and parts of the homologous chromosomes are exchanged.

The pairing of homologous chromosomes during meiosis is important for driving genetic variation. Due to the genetic recombination that occurs between homologous pairs during meiosis, the resulting haploid gametes contain chromosomes that are genetically distinct from each other.

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Chile is closer to the east pacific rise than the tonga. Therefore, the chile trench is closer and the tonga is further

The Eastern Tropical Pacific Ocean (ETPO) covers 199,665,900 ha of coastal and marine habitats along the Pacific Coast of Central America, from southern Mexico to northern Peru. Here, more than 170 South Pacific islands make up the Polynesian nation of Tonga, most of which are surrounded by white beaches and coral reefs and are covered in tropical rainforest.

Lagoons and limestone cliffs guard the main island of Tongatapu. In addition to beach resorts, plantations, and the Ha'amonga a Maui, a significant coral gate from the 1200s, it is home to the rural capital of Nuku'alofa. The East Pacific Rise is a mid-ocean rise, a divergent tectonic plate boundary located along the floor of the Pacific Ocean. It separates the Pacific Plate to the west from the North American Plate, the Rivera Plate, the Cocos Plate, the Nazca Plate, and the Antarctic Plate

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when an electrical impulse reaches the av node, it is slowed for a brief period of time so that: blood can pass from the atria to the ventricles.

'What is AV node?'

The interatrial septum of the heart's Koch triangle has a small structure called the atrioventricular (AV) node that is situated close to the coronary sinus. The right coronary artery supplies the atrioventricular node in a right-dominant heart. In order to provide electrical impedance from the atria and a pacemaker in its absence, this structure connects the electrical systems of the ventricles and the atria. The AV node's intrinsic rate ranges from 40 to 60 beats per minute (bpm).

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Answer:

Thomas Alva Edison was an American inventor and businessman who is best known for his contributions to the development of the electric light bulb and the phonograph. Born in Milan, Ohio, in 1847, Edison had a difficult childhood and was forced to leave school at an early age to help support his family. Despite this, he developed a love for science and technology and began experimenting with electrical devices at an early age.

Edison's first major invention was the electric light bulb, which he developed in 1879. This revolutionary invention changed the way people lived and worked, and it helped to usher in the era of electricity. Edison also invented the phonograph, which was the first device that could record and play back sound. In addition to these inventions, Edison was also responsible for a number of other important technological innovations, including the motion picture camera and the first commercially viable incandescent light bulb. He died in 1931 at the age of 84.

Answer:

The area of the lumen that is available for blood flow would be 6.908  [tex]mm^2[/tex].

The lumens of arteries are usually cylindrical in shape with the formula for determining the area given as π[tex]r^2[/tex].

The diameter is usually the square of the radius, [tex]r^2[/tex].

Thus, for the lumen whose diameter is given as 4.0 mm, the area can be calculated as:

Area of lumen = 3.14 x 4

                        = 12.56 [tex]mm^2[/tex]

That's the area of the lumen before the deposition of cholesterol. The cholesterol took up 45% of the original area of the lumen. Thus:

45/100 x 12.56 = 5.652  [tex]mm^2[/tex]

The area of the lumen that is available for blood flow would then be:

12.56 - 5.652 = 6.908  [tex]mm^2[/tex]

In other words, the area of the lumen that would be available for blood flow is  6.908  [tex]mm^2[/tex].

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Two differences between the events which occurs between fall and winter are as follows

Winter simply refers to that season or period of the year in which the temperature is very cold. This means that it a period characterized by rise in temperature. During this period the weather is usually colder compared to the autumn period.

That being said, on the other hand, a period of autumn ( fall ) the weather is hotter due to the drop in the temperature and also the leaves on trees do usually get dried, change color and fall down.

In conclusion, we can now confirm from the explanation given above that the fall is a period also known as the autumn.

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certain that:

1. She will pass on the favourable trait to her offspring

2. Combination of differential reproduction and heredity

3. Favours individual survival above all other traits.

Natural selection is like a filter and natural selection is too slow to adapt. A new allele need to increase fitness when it first arises and need to increase fitness in future generations .

Population usually refers to the number of people living in a region, such as a city, town, region, country, continent, or world. Governments typically quantify the size of the population of their territory using a census, the process of collecting, analyzing, compiling and publishing data on populations.

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Transport of acetyl CoA from mitochondria:The membrane of the mitochondria is impermeable to acetyl CoA.

By oxidative decarboxylation of pyruvate or oxidation of fatty acids, the mitochondria create acetyl CoA.

When the body has more ATP than it needs, the extra energy is stored as fatty acids.

Acetyl CoA thus starts the TCA cyce

If there is enough energy, acetyl CoA is used in the production of fatty acids.

Acetyl CoA must be moved from the mitochondria to the cytosol because fatty acid production takes place there. Citrate is transported out of mitochondria because it cannot pass the membrane.

The enzyme citrate synthase condenses acetyl CoA and oxaloacetate to produce citrate.

Acetyl CoA is released after citrate is converted back to oxaloacetate in the cytosol.

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Pyruvate is an enzyme that plays a major role in both glycolysis and the Krebs Cycle. It helps to break down glucose into its component molecules, and is also involved in the production of NADPH, an important energy carrier.

Pyruvate is responsible for the oxidation of glucose and the production of pyruvate, which is then used to generate ATP and NADPH.

The role of pyruvate in the Krebs Cycle is to slow down the cycle. This is important because it allows for the metabolism of multiple molecules of glucose, which makes it possible for the body to create more ATP and NADPH. The slowing down of the Krebs Cycle also helps to prevent the buildup of metabolic byproducts, which could lead to disease.

In glycolysis, pyruvate is responsible for the conversion of glucose into pyruvate. This reaction is important for the production of NADPH. Since NADPH is required for the synthesis of fatty acids, the availability of NADPH is essential for cell growth and maintenance. Without the slow down of the Krebs Cycle, there would not be enough NADPH produced, and cells would suffer from an energy shortage.

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