What is the name of the organelle that migrate during m phase to form the two opposite poles of the dividing cells?

All species have a variation owing to the diversity in the gene pool, environment and adaptation to the surroundings.

Variation occurs in a species to help the individual to survive better in the given surroundings. Modifications have happened in organisms genetically and physically so that they adapt better and can survive and thrive in the ecological conditions.

Variation is of two types - intraspecific and interspecific.

Intraspecific variation is the variation seen amongst the individuals of the same species.

Interspecific variation is the difference seen amongst the individuals of different species.

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Answer:

All species have a variation owing to the diversity in the gene pool, environment and adaptation to the surroundings.

Variation occurs in a species to help the individual to survive better in the given surroundings. Modifications have happened in organisms genetically and physically so that they adapt better and can survive and thrive in the ecological conditions.

Explanation:

Answer:

Stars are born within the clouds of dust and scattered throughout most galaxies. A familiar example of such as a dust cloud is the Orion Nebula. Turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction.

Explanation:

When it was dark these stars would light up the sky giving people light . In addition stars are very important because they make life on Earth. the most important is the Sun, because without that it wouldn't be life on Earth . Earth would just be a rock with ice.

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The statement is true.  Regular study of science subject at home increases achievement level of students.​

Science studies is described as  an interdisciplinary research area that seeks to situate scientific expertise in broad social, historical, and philosophical contexts.

The study of science uses various methods to analyze the production, representation and reception of scientific knowledge and its epistemic and semiotic role.

Regular study in most cases can  help students develop good study habits and discipline, which will  lead to success not only in science but in other subjects as well.

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#complete question:

Regular study of science subject at home increases achievement level of students.​ True or false

E) None of the answers is correct; all listed cell types can act as antigen-presenting cells (APCs).

Antigen-presenting cells (APCs) play a crucial role in the immune response by capturing, processing, and presenting antigens to activate T cells. While dendritic cells, macrophages, and mature B cells are well-known APCs, natural killer (NK) cells are not traditionally considered APCs. NK cells are part of the innate immune system and primarily function in detecting and eliminating infected or abnormal cells through mechanisms like cytotoxicity and cytokine release.

Unlike dendritic cells, macrophages, and B cells, NK cells do not possess the same specialized antigen presentation machinery, such as MHC class II molecules, necessary for efficient antigen presentation to T cells. While NK cells can interact with APCs and participate in immune responses, their primary role lies in innate immune defense rather than antigen presentation.

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If the greenhouse is sealed from the outside atmosphere, how would you predict this isolated system to differ from the carbon cycle of the outside world and in this case the energy of closed system is decreased.

A closed system has been defined as the system in which there has only transfer of energy has takes place this type of system has been known as closed system.

Example - Transfer of heat from a cup of tea.

Mainly there are three type of system.

1:- Open System

2:- Closed System

3:- Isolated System

Open system:-

A system in which there is transfer of both energy and mass these types of system is called as open system.

Example:- Flow of water in a canals

Closed System:-

A  system in which there is only transfer of energy is takes place this type of system is known as closed system.

Example - Transfer of heat from a cup of tea.

Therefore, If the greenhouse is sealed from the outside atmosphere, how would you predict this isolated system to differ from the carbon cycle of the outside world and in this case the energy of closed system is decreased.

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To avoid microbiological contamination, aseptic technique is a methodology that employs target-specific practises and activities under appropriately controlled conditions.

Microbiologists employ the aseptic method for a variety of tasks such as transferring cultures, inoculating medium, isolating pure cultures, and performing microbiological tests. Proper aseptic technique prevents cultures from contamination by environmental microbes.

The purpose of medical aseptic technique is to decrease infection contamination. Sterile techniques are used during invasive procedures such as surgeries or catheterizations to completely eliminate all microorganisms, pathogenic or otherwise.

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Explanation:

There are four stages of mitosis: prophase, metaphase, anaphase and telophase.1) Prophase: chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres 2) Metaphase: chromosomes line up along the metaphase plate (centre of the cell) 3) Anaphase: sister chromatids are pulled to opposite poles of the cell 4) Telophase: nuclear envelope reforms, chromosomes unfold into chromatin, cytokinesis can begin The order of the stages of mitosis can be remembered using the mnemonic PMAT.

Answer:

.

Explanation:

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Answer: It is a cell

Explanation: Most cells have a honey cone shape.

The image represents the level of organization known as tissue. In the image, the cells are organized into a specific pattern and shape to form a tissue. It is important to note that different tissues can be organized into organs, and organs can be organized into organ systems, which make up the various body systems.

A tissue is a group of similar cells that work together to perform a particular function. Tissues can be found in many places in the body and they are specialized to carry out specific functions. For example, muscle tissue is composed of cells that contract and allow movement, while nerve tissue is made up of cells that transmit electrical signals.

The different levels of organization in the body are all interconnected and work together to maintain homeostasis and keep the body functioning properly.

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True. Hydrophobic exclusion refers to the tendency of hydrophobic (water-repelling) molecules to avoid contact with water.

This can affect the overall shape of many biological molecules, as the hydrophobic regions may be forced to cluster together in order to avoid contact with water molecules. This clustering can have a significant impact on how these molecules interact and fit together, as the specific arrangement of hydrophobic and hydrophilic (water-attracting) regions can determine the overall stability and function of the molecule.

This phenomenon occurs because hydrophobic (water-repelling) regions of the molecules tend to cluster together, minimizing their contact with water, which in turn influences the overall conformation and interactions between these biological molecules.

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Cocos Island is a small, remote island located in the Pacific Ocean, approximately 550 kilometers off the coast of Costa Rica.

The island was declared a Costa Rican National Park in 1978 and is now a UNESCO World Heritage Site.

Cocos Island is known for its stunning natural beauty, including dense rainforest, cascading waterfalls, and pristine beaches.

The island is home to a diverse range of plant and animal species, many of which are endemic to the island and found nowhere else in the world.

Cocos Island is particularly renowned for its marine biodiversity, with over 300 species of fish, 600 species of crustaceans, and 200 species of mollusks found in the surrounding waters.

The island's waters are also home to a variety of shark species, including hammerheads, tiger sharks, and white-tip reef sharks.

Cocos Island has a fascinating pirate history, with legends suggesting that treasure has been buried on the island's shores for centuries.

In the 19th century, Cocos Island was used as a base for whaling operations, and several whaling stations were established on the island.

Cocos Island was also used as a filming location for the 1997 movie "Jurassic Park: The Lost World," and scenes from several other films and TV shows have been shot on the island.

Despite its remote location, Cocos Island has been subject to illegal fishing and poaching, leading to efforts by the Costa Rican government and conservation groups to protect the island's unique ecosystems.

The option that  would not be an example of a secondary sex characteristic in women is Voice deepens.

Voice deepens would not be an instance of a kind of sexuality characteristic in mothers. This is a characteristic that usually happens all along adolescence in men on account of the increase in testosterone levels.

So, Secondary sexuality traits in girls involve increase of the consciences, tumor of pubic and underarm fiber, stretching of the finishing, and the beginning of period. These changes are the result of hormonal changes all along adolescence, particularly an increase in estrogen and progesterone.

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Answer:

The cornea is the only part of a human body that has no blood supply; it gets oxygen directly through the air. The cornea is the fastest healing tissue in the human body, thus, most corneal abrasions will heal within 24-36 hours.

Nuclear reactions do indeed occur in the human body, but the body does not use them.

The process through which plants lose water through stomata is called transpiration.

Option c is correct.

Plants lose water vapour through their stomata through a process called transpiration. When the weather is extremely hot, the plant loses water vapour, which cools it down. Water from the stem and roots flows upward or is "drawn" into the leaves.

When stomata are opened to allow carbon dioxide to enter for photosynthesis, water in the mesophyll tissue of leaves can also evaporate if the air is drier outside because of things like high temperatures.

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Answer:

Number 2

Explanation:

The more people, the more resources that will need to be used. Hope this helps :)

Answer: B)An increase in the human population means more natural resources will be used.

Explanation: The more people there are on the planet, the more things people will need and therefore increasing the amount of resources used.

The DNA in the region of the arrow would support the formation of the lagging strand of DNA.

The lagging strand is synthesized in 5'→3' direction in the form of small fragments away from the replication fork whereas, the leading strand is synthesized towards the replication fork in 5'→3' direction in a continuous fashion.

The question is incomplete. The complete question is:-

This figure shows a replication bubble with two replication forks. The DNA in the region of the arrow would support the synthesis of _______ strand of DNA.

either the leading or the lagging,

the lagging,

the leading,

neither the leading or lagging.

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Answer: Taxonomical Classification

Explanation: It is the "best method of classification". Explanation: This is because, all living organisms are needed to be classified in groups, so as to find out their similarities and their differences.

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Answer:

Muscles pull on the joints, allowing us to move.Muscles make up half of a person's body weight. They are connected to bones by tough, cord-like tissues called tendons, which allow the muscles to pull on bones. If you wiggle your fingers, you can see the tendons on the back of your hand move as they do their work.

Answer:

Cellular respiration uses energy in glucose to make ATP. Aerobic (“oxygen-using”) respiration occurs in three stages: glycolysis, the Krebs cycle, and electron transport. ... This results in a net gain of two ATP molecules. Life first evolved in the absence of oxygen, and glycolysis does not require oxygen.

The term leukemia means white blood. White blood cells (leukocytes) are used by the body to fight infections and other foreign substances. Leukocytes are made in the bone marrow. Leukemia leads to an uncontrolled increase in the number of white blood cells.

Common causes of leukocytosis include having an infection, but it also can occur if a person has had bone tumors or leukemia.

Septic shock may cause either leukocytosis or leukopenia. Many septic patients exist between these two extremes, with a normal WBC (such patients often develop leukocytosis in a delayed fashion). For example, half of the patients presenting to the hospital with bacteremia may have a normal WBC.

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The year without a summer” be considered destructive it is because as we all know that summer is the season of growing wheat who is very important food crop .....That's why

Answer:

Helicase unwinds the DNA and creates the replication fork for other enzymes to bind.

Explanation:

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True. a body in suspended animation in science fiction because of its extremely low temperature. Suspended animation is the halting of life processes by exogenous or endogenous mechanisms without putting a stop to actual life.

Other involuntary activities such as breathing, heartbeat, and others may still exist, but they can only be observed artificially. Suspended animation is a state of unconsciousness in which an animal's body functions very slowly, perhaps to help it survive the winter. 2. a noncount noun When you say that someone is "in a condition of suspended animation," you are referring to their inactivity and inaction.

Abstract. The therapeutic induction of a condition of tolerance to momentary total systemic ischemia, also known as protection-preservation, is known as suspended animation.

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Answer:

Yes, COVID-19 is spread through respiratory droplets, which typically travel about three to six feet and settle on surfaces, where they can live for a few hours up to several days, according to the World Health Organization. There is a risk of catching the disease by inhaling those particles, but there is a more significant risk of getting it by touching surfaces, such as desks, handrails, or doorknobs, where those droplets may have settled.

“The disease transmission goes from a cough or sneeze to a surface to your hand to your face, and that’s how people get infected,” said Paul Biddinger, director of the Emergency Preparedness Research, Evaluation, and Practice Program, Harvard T.H. Chan School of Public Health. “Good hand washing really matters. If people cough or sneeze into their elbow, that limits the spread of respiratory secretions.

Answer:

The surfaces of microorganisms typically bear repeating patterns of molecular structure. The innate immune system recognizes such pathogens by means of receptors that bind features of these regular patterns; these receptors are sometimes known as pattern-recognition molecules.

Explanation:

Answer:

(D.) because if a human finds better places to be, for various reasons they will migrate to reach these New Regions.

The question where both anthropologist and archaeologist work together to help answer is How did changes in the depth of the river affect the houses people built at the site? Thus option A is correct.

Archaeologist study human societies of past; Anthropologist can focus on communities from the past and present.

The archaeologist are typically study the societies by using physical evidence such as  buildings, tools, clothing type of artifacts.

They also use bones from ancient animals and humans to learn about how different species evolved over the time.

Anthropologists study cultures of the society from the past and the present, collect the evidence such as written script in different languages.

Sometimes they study physical evidence like bones or artifacts.

Thus option A is correct.

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Answer:

Explanation:

Molecules are made of atoms, the smallest unit of chemical elements. They can be found in all matter, living and non-living

An organ system is a group of organs that work together to perform specific bodily functions. The respiratory system, for example, uses the lungs, airways and respiratory muscles to inhale oxygen and release carbon dioxide in animals.