At rest, there is a build up of {{c1::negative charge}} just inside the membrane and {{c1::positive charge}} just outside it

Answer:

b i may be wronggg???? but im pretty sure i remeber a il about this

Explanation:

Answer:

Chickens are gregarious birds and live together in flocks. They have a communal approach to the incubation of eggs and raising of young.

Explanation:

Answer:

its considered both....

Explanation:

DNA replication is a fundamental process in human bodies as it ensures that cells in the body function properly.

DNA carries genetic information that regulates the growth, development, and replication of cells. Therefore, accurate replication of DNA is vital for the survival and growth of all organisms.

It is needed for cell division

During cell division, DNA replication is a crucial process that ensures accurate distribution of DNA to the daughter cells. DNA replication precedes cell division and ensures that each daughter cell has a complete copy of the genetic information from the parent cell. Moreover, DNA replication allows for genetic diversity during reproduction, leading to the development of new traits in the offspring.

DNA replication ensures the accuracy of genetic information, maintaining the stability and continuity of the organism's genetic material. Therefore, cell replication is the most suitable option that explains why DNA replication is significant.

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Answer:

d. capillary action

Explanation:

ok

Answer: The answer is C. Universal Solvent

Explanation:

Answer is DNA

Explanation:

The nucleic acid that provides the master code for protein synthesis is DNA.

Full form of DNA is

Deoxyribonucleic Acid.

Answer:

Option B

White Blood Cells

Explanation:

WBC are the important part of immune system. So, HIV infect and destroy WBC.

-TheUnknownScientist 72

Answer:

b white blood cells

Explanation:

Newton's First Law, the Law of Inertia, states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Motion is the physical movement of an object that changes its position over time. It can be linear or circular, and can occur in a straight line or an arc. Motion is a fundamental part of the physical world and is studied in many branches of science, including physics, astronomy, and mathematics. In physics, motion is studied in terms of displacement, velocity, acceleration, time, and energy. Motion can be represented graphically with the use of graphs and diagrams. Motion can also be expressed in terms of equations and mathematical formulas. Motion is an important factor in the understanding of the laws of physics, and in the application of engineering principles. Motion is also used to describe the motions of objects in the universe, such as planets, stars, and galaxies. Motion is also used in everyday life and is used in sports, transportation, and entertainment.

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A structure formed from molecules that combine to make up cells is called an atom.

Phototropism occurs when a plant bends or grows in a specific direction in reaction to light. Shoots tend to migrate toward the light, while roots tend to grow away from it.

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Answer:Artificial selection is the process by which humans choose individual organisms with certain phenotypic trait values for breeding. If there is additive genetic variance for the selected trait, it will respond to the selection, that is, the trait will evolve. evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. Evolution can an animal to make it almost unrecognisable, like cephalopods and how they evolved to make them more buoyant

Cichlids are a group of fish known for their diverse mouth structures that evolved as a result of natural selection.

Natural selection is the process by which certain traits become more or less common in a population over time based on the survival and reproductive success of individuals with that trait.

For cichlids, the different mouth structures that have evolved may be related to the different ecological niches that these fish have occupied. For example, some cichlids have evolved to eat small, soft-bodied prey such as insects and plankton, and have evolved small, slender jaws with finely pointed teeth.

Other cichlids evolved to eat larger, harder prey such as mollusks and crustaceans, and evolved large, strong jaws with thicker, blunt teeth.

The evolution of different mouth structures in cichlids may also be related to the habitats of these fish. For example, some cichlids live in shallow, murky waters and have evolved to use suction to capture prey, while others live in deeper, clearer waters and use lateral jaw movements.

Overall, the evolution of distinct mouth structures in cichlids may be the result of a combination of factors such as the type of prey that cichlids eat, their habitat, and the specific ecological pressures they face in their environment.

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Answer:

Commensalism - one specie benefits and the other species is neither harmed nor helped .

Symbiosis - both species benefit

parasitism - one species benefit and the other species is harmed

Bye :-)

Interactions between two or more species are called interspecific interactions.

The interactions described are;

There are 5 types of interspecific interactions:

Thus, we can conclude that

i) Commensalism- One species benefits and the other species is neither harmed nor helped.

ii) Mutualism- Both species benefit.

iii) Parasitism- One species benefits and the other species is harmed.

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Answer:

Anabolic reactions, also called biosynthesis reactions, create new molecules that form new cells and tissues, and revitalize organs.

Explanation:

Answer:

The correct option is;

Frazier developed models to explain the different events that occur

Explanation:

The difference between solids and liquids are as follows;

1) Solids have well defined shape, while liquids takes the shape of the container they are placed

2) Solids are not easily deformed, while objects can be made to enter a liquid with a small amount of force

3) Solids are strong while liquids are soft

4) Solids have properties of strength, ductility, elasticity, while liquids do not

5) The atoms of a liquid can flow past each other, all through the volume of the liquid, while the atoms of a solid can only vibrate in their fixed location.

Answer:

Frazier’s models oversimplified the characteristics of solids and liquids.

Hope this helps.

Answer:

B

Explanation:

Answer:

D

Explanation:

Shearing is causing the plates to slide past each other describes the motion of the plates. Therefore, the correct statement is option B.

Plate motion is caused due to movement of the underlying mantle creating convection currents to drive the plates. When two plates meet, the type of motion depends on the type of boundary.

The plates move past each other in a shearing motion at a transform boundary that is the cause of earthquakes. In this type of boundary, no destruction of the lithosphere was observed.  The two plates move away from each other to create new lithosphere as magma rises from the mantle at a divergent boundary.

The two plates move towards each other which can result in volcanic activity at a convergent boundary.

Therefore, shearing causing the plates to slide past each other best describes the motion of the plates.

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The false statement about epigenetic modifications is:
c. Only non-DNA components of chromatin are modified with epigenetic markers.

Epigenetic modifications refer to changes in gene expression that do not involve changes to the underlying DNA sequence. These modifications can be inherited and can influence how genes are turned on or off in different cells or at different stages of development.

a. The tails of the nucleosome octamer components can be modified with methylation: This statement is true. Methylation of the tails of nucleosome octamer components, which are made up of histone proteins, can affect gene expression by either activating or repressing the associated genes.

b. The tails of the nucleosome octamer components can be modified with acetylation: This statement is also true. Acetylation of histone tails is another type of epigenetic modification that can influence gene expression. Acetylation generally leads to gene activation by relaxing the chromatin structure and allowing transcription factors to access the DNA.

d. Epigenetic modifications control whether a region is euchromatin or heterochromatin: This statement is true. Epigenetic modifications play a crucial role in determining whether a region of DNA is in a euchromatin state, which is more accessible for gene expression, or a heterochromatin state, which is more condensed and less accessible for gene expression.

In summary, the false statement is c. Only non-DNA components of chromatin are modified with epigenetic markers. Epigenetic modifications can occur on both DNA and non-DNA components of chromatin, such as histone proteins. These modifications can have significant impacts on gene expression and are essential for cellular development and function.

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Earth: Option A and D only.

A. takes longer than 365 days to orbit the sun

D. has seasons because of a tilted axis

The planet Earth completes a full revolution around the sun in approximately 365.25 days, which is equivalent to one year. The reason for having a leap year every four years is to accommodate the additional quarter day.

Therefore,  The Earth's inclination is roughly 23.5 degrees. The Earth's inclination results in inconsistent sunlight exposure across varying locations throughout the year, ultimately affecting the emergence of seasons.

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Earth A. takes longer than 365 days to orbit the sun and  Earth D. has seasons because of a tilted axis

The Earth can be described as the plananet that orbits around the sun every 365.25 days which implies that it takes a little more than 365 days so as to be able to makea complete trip around the sun.

It should be noted that the earth's spin axis is tilted  which can be attributed to the orbital plane and as a result of this there is usually  seasons hoever the earth's axis points towards the sun can be regarded as one that bring the summer for that hemisphere.

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The autonomic nervous system is controlled by the Cerebral cortex, Hypothalamus, Spinal cord, and Brainstem.

The paraventricular nucleus is the primary hypothalamic region for central autonomic nervous system regulation and is controlled by the hypothalamus. The somatosensory nervous system activates bodily functions that help you when you're in trouble, especially when you're stressed or in danger.

In your body, the parasympathetic nervous system works in opposition to the sympathetic nervous system. The autonomic nervous system is the part of the nervous system that controls internal organs such as sweat, salivary, digestive glands, blood vessels, stomach, intestine, liver, kidneys, bladder, genitals, lungs, and pupils.

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Answer:

different horse species could be alive at the same time as others. they all descended from a common ancestor.

Answer: The reason why an evolutionary diagram looks more like a bush than a straight line is the development of new species.

To be more clear - initially we can have one species, and that species will over time start to live in multiple different environments. As the species starts to adapt to the new environment, its appearance and genetics are gradually changing in order for it to have more advantageous traits to survive in the environment. As the time passes, the changes that will emerge in some members will create a new species, and that process will constantly go on, until extinction that is. So we have one species that is an ancestor of multiple new species, thus the family tree, or rather evolutionary diagram, starts to branch out, and as the time passes, it will branch out more and more and take a bush-like looks.

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Answer:

A.chromosomes

Explanation:

hope it's help

Explanation:

they were responsible for the oxygenation of the atmosphere and oceans

industrial preparation of oxygen from liquify air

A nerve cell that is mostly permeable to potassium and slightly permeable to sodium will have an equilibrium potential of approximately -86.6 mV.

To determine the equilibrium potential of a nerve cell, we need to consider the concentrations and permeabilities of the ions involved, specifically potassium (K⁺) and sodium (Na⁺). The equilibrium potential is the membrane potential at which there is no net flow of ions across the membrane.

In this case, if the nerve cell is mostly permeable to potassium (K⁺) and slightly permeable to sodium (Na⁺), we can assume that the resting membrane potential of the cell is close to the equilibrium potential for potassium.

The equilibrium potential for an ion can be calculated using the Nernst equation:

Eion = (RT/zF) * ln([ion]o/[ion]i)

Where:

- Eion is the equilibrium potential for the ion

- R is the gas constant (8.314 J/(mol·K))

- T is the temperature in Kelvin

- z is the valence of the ion (charge)

- F is the Faraday constant (96,485 C/mol)

- [ion]o is the extracellular concentration of the ion

- [ion]i is the intracellular concentration of the ion

- ln is the natural logarithm

Since the nerve cell is mostly permeable to potassium (K⁺) and assuming that the intracellular concentration of potassium is higher than the extracellular concentration, we can focus on the equilibrium potential for potassium.

For a typical resting nerve cell, the intracellular potassium concentration ([K⁺]i) is around 140 mM, and the extracellular potassium concentration ([K⁺]o) is around 4 mM.

Using the Nernst equation, we can calculate the equilibrium potential for potassium (EK):

EK = (RT/zF) * ln([K+]o/[K⁺]i)

  = (8.314 J/(mol·K) * 310 K) / (1 * 96,485 C/mol) * ln(4/140)

Plugging in the values and calculating, we get:

EK ≈ -86.6 mV

Therefore, the equilibrium potential for a nerve cell that is mostly permeable to potassium and slightly permeable to sodium would be approximately -86.6 mV. This means that the resting membrane potential of the cell would be close to -86.6 mV, with potassium playing a significant role in establishing this potential.

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The characteristics that are adaptive are the ones that enable the body to respond quickly to pathogens and cause an adaptive immune response.

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Answer:

convergent boundary

Explanation:

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Answer:

3

Explanation:

dna give instructions for the production of amino acids, polypeptides are made of amino acid chain,

Answer: Liquid water is an essential requirement for life on Earth because it functions as a solvent. It is capable of dissolving substances and enabling key chemical reactions in animal, plant and microbial cells. Its chemical and physical properties allow it to dissolve more substances than most other liquids.

Explanation:

Liquid water and carbon, as well as a source of energy, are essential for life to emerge and develop.

Solar system is defined as the sun and the group of celestial bodies that are attracted to it and orbit around it, a similar system centered on another star.

The characteristics of life on earth are

Carbon, Oxygen and water are the most important gases for life in earth.

Thus, liquid water and carbon, as well as a source of energy, are essential for life to emerge and develop.

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