What component of Earth’s atmosphere exists entirely as a result of photosynthesis?


A)oxygen gas


B)water vapor


C)nitrogen gas


D)carbon dioxide gas

The one responsible of covering the cerebrum in which has a thin surface layer that comprises of interconnected neural cells is the cerebral cortex. This is also known or referred to as gray matter and it is being divided into lobes that are consist of four parts.

Answer:

The answer is D. Glycogen

Explanation:

Glycogen is an energy reserve polysaccharide, which is the main source of blood glucose. Its main function is to be an unlimited energy source for the organism. As is known, glucose is necessary to produce energy in the living being and to perform all the processes that occur in an organism. Glycogen is abundantly found in the liver and in smaller amounts in the muscles.

According to molecular biology, a transcript factor also known as sequence-specific binding factor is a protein that ASSIST the rate of transcription of genetic information from DNA to messenger RNA by binding to a specific DNA sequence. In order for it to be expressed at the right cell at the right time its function is to regulate genes.

Excessive concentrations of phosphorus can lead to eutrophication in aquatic ecosystems, causing harm to aquatic organisms.

Excessive concentrations of phosphorus are considered a pollutant because they can lead to eutrophication. When phosphorus enters aquatic ecosystems from sources such as fertilizer runoff and sewage, it promotes excessive growth of microorganisms. This growth depletes oxygen levels in the water, leading to the death of aquatic organisms like shellfish and finfish.

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Answer:

A sequence of different organisms in which one is being eaten by other is called food chain. In a food chain organisms green plants which uses solar energy to prepare their food are called producers. Producers are the source of food for the herbivores or   Plant eaters. They are primary consumers and those animals which are carnivores eating herbivores are secondary or tertiary or top consumers depending on the length of a food chain. If producer population decreases then there will be lack of food for herbivores. Therefore herbivore population will decrease in want of food.  

Answer:A deep sleep in which the individual cannot be aroused and does not respond to external stimuli is known as coma.

Explanation:Someone who is in a coma is unconscious and will not respond to voices, other sounds, or any sort of activity going on nearby. The person is still alive, but the brain is functioning at its lowest stage of alertness. You can't shake and wake up someone who is in a coma like you can someone who has just fallen asleep.

In the nature-nurture issue, nature refers to an organism's genetics, and nurture refers to its environment and experiences.

On the other hand, "nurture" pertains to the impact of environmental factors, experiences, and learning on an organism's development and behavior.

It encompasses various external influences an individual is exposed to throughout their life, including upbringing, social interactions, cultural norms, education, socioeconomic conditions, and physical surroundings. Nurture plays a critical role in shaping an individual's personality, beliefs, values, skills, and overall development.

The nature-nurture debate explores the relative contributions of genetic inheritance (nature) and environmental influences (nurture) in determining an individual's traits and behavior.

It seeks to understand how both factors interact and influence each other in shaping the complexity of human development and behavior.

Contemporary research and understanding emphasize that both nature and nurture interact in intricate ways to influence an individual's traits and development.

It's recognized that genetics sets the stage and establishes predispositions, but the environment and experiences significantly modify and refine these predispositions, leading to the rich diversity observed in human behavior and characteristics.

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Nature refers to an organism's genetic inheritance and biological factors, while nurture relates to its environmental and cultural influences. Both of these factors interact reciprocally to shape individual organisms.

In the context of the nature-nurture issue, nature refers to an organism's genetic makeup or biology, while nurture pertains to its environment and cultural influences. The term 'nature' implies the genetic inheritance and biological factors that affect development, including characteristics like eye color and certain personality traits passed on from our parents. On the other hand, 'nurture' refers to the contribution of environmental factors such as upbringings, interactions, experiences, and cultural influences in shaping an organism. It's important to note that nature and nurture work together, influencing traits expression and shaping individuals in a reciprocal interactive manner.

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A non random influence affecting who survives or reproduces is selective pressure. A selective pressure is considered to be a phenomenon in which behaviors of the living organisms are being driven to evolution and the natural selection in which they are also divided in to two types.

Final answer:

Characteristics such as a synovial cavity, articular cartilage, synovial membrane, and ligaments define a synovial joint, which is a highly mobile joint type that allows smooth movement between bones.

Explanation:

The presence of a synovial cavity, articular cartilage, synovial membrane, and ligaments are characteristics of a synovial joint. Synovial joints are the most common type of joint in the body and allow for smooth movements between the adjacent bones. The synovial cavity is a fluid-filled space that houses the articulating surfaces of the bones. The articular cartilage covers these surfaces, reducing friction and facilitating smooth motion. The synovial membrane secretes synovial fluid, which further lubricates the joint, while ligaments support the joint by holding the bones together and resisting excess or abnormal movements.

Answer: Osmosis

Explanation:

Osmosis is the process of transportation of water through a selectively permeable membrane across a concentration gradient. Typically, in this process water moves from a region of high concentration of solute to lower solute concentration.

In the primary nursing care delivery model, a registered nurse is responsible for delivering comprehensive care to assigned patients during their work shift. They handle all care activities and coordinate with other healthcare professionals. The aim is to provide consistent, personalized care throughout the patient's hospital stay.

The primary nursing care delivery model is a system of nursing care in which one registered nurse (RN), known as the primary nurse, assumes full responsibility during their working time for managing the complete care of a group of assigned patients, from admission to discharge. This holistic approach facilitates a stronger nurse-patient relationship and continuity of care.

In the primary nursing care delivery model, the primary nurse carries out all necessary nursing activities for the patient, including assessment, planning, implementation, and evaluation of care, as well as coordinating with other healthcare professionals. For instance, the surgeon, nurse, and anesthesia professional would review aloud the key concerns for the recovery and care of the patient. If the primary nurse is absent, an associate nurse assumes responsibility. This model aims to provide personalized and consistent care throughout a patient's hospital stay.

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Karyotyping is unable to diagnose microdeletions and microinsertions due to its limitation to detect changes on a micro-scale. While it can identify larger genetic alterations, the minute changes caused by microdeletions and microinsertions are too small to be accurately observed.

The reason why it is difficult to diagnose microdeletions and microinsertions using karyotyping is that the methodology of karyotyping typically involves visualizing the chromosomes in a cell, and the size of the deletions or insertions that can be easily observed via this technique are typically rather large, such as whole chromosomes or significant portions of them. While karyotyping is effective in identifying gross chromosomal alterations such as those in Down syndrome (extra chromosome 21) or Turner syndrome (only one X chromosome in women), it does not offer a high resolution for smaller changes on a micro-scale. Microdeletions and microinsertions involve changes of a very small number of base pairs, too small to be accurately captured by karyotyping. Therefore, these minute changes might get unnoticed in a karyotype.

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Answer:

just took test answer is exponential growth

Explanation:

The term names the unchecked reproduction of a population as exponential growth. The correct option is C.

Exponential growth means a rapid increase in anything. It shows the continuous growth of any population or production of a factory. The formula to calculate Exponential growth is f(x)=a(1+r)^{x}.

The quantity that is under exponential growth is called an exponential function. In biology, exponential growth can be understood by a culture of a bacterium.

A bacterium will grow exponentially in a medium till the presence of nutrition. The first will split into two and two split into four and so on, when the nutrition will finish, the growth will stop.

Thus, the correct option is C. exponential growth.

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(1)   Many assumptions gave rise to a mystery on Eastern island –why it has so slow growth of human population during the old times.  The most common assumption read is that leader Rapa Nui, had greedily used up all the island’s resources leaving nothing for people to use and eat. The reason also why they fall to war and cannibalism.

(2)   Other factors that limit the growth population of an organism are:

·         density-dependent factors like food supply, disease and pollution and density

The main organelle which is responsible for gaseous exchange in the eukaryotic cell is the mitochondria. It preforms cellular respiration and produces ATP (energy).

Mitochondria are the double membrane-bound cell organelles which are found in the eukaryotic cell. Mitochondria generates most of the chemical energy which is needed to power the cell's biochemical reactions. Chemical energy produced by the mitochondria is stored in a small molecule which is called as adenosine triphosphate (ATP).

As mitochondria convert O₂ to water, the intracellular O₂ tension decreases in the mitochondria, thereby generating a gradient for O₂ diffusion into the cell from the extracellular space of the mitochondria. Mitochondria are the principal site of oxygen consumption in the cell, so the oxygen tension is lower than that of any other cell organelles.

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Insulin and glucagon are hormones that regulate blood sugar levels. Insulin is released when blood sugar is high to help cells absorb glucose and store excess in the liver as glycogen. Glucagon is released when blood sugar is low and promotes the release of stored glucose from the liver.

Insulin and glucagon are both hormones produced by the pancreas that have opposite effects on blood glucose levels.

Insulin

is secreted when blood glucose levels are high after eating a meal, it promotes the absorption of glucose by the body's cells and the storage of excess glucose as glycogen in the liver. On the other side,

glucagon

is secreted when blood glucose levels are low, such as during fasting or between meals. It promotes the release of stored glucose from the liver into the bloodstream. Hence, insulin and glucagon work together to maintain a steady level of glucose in the blood, ensuring a consistent supply of energy for the body.

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Active Transport refers to the process where sugar molecules are moved through a membrane from a region of lower concentration to a region of higher concentration. This process uses energy in the form of ATP and involves proteins acting as pumps.

The process that includes a net movement of sugar molecules through a membrane from a region of lower concentration to a region of higher concentration is called Active Transport. During active transport, molecules are transported against their concentration gradient, which requires energy in the form of ATP. In this context, proteins within the cell membrane act as pumps, pushing the substance from lower to higher concentration.

A good illustration of this is the movement of glucose into a cell, which is a form of active transport. In this process, a protein in the cell membrane acts like a pump, using ATP to move the glucose molecules from outside the cell (lower concentration) to inside the cell (higher concentration).

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