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The disk-diffusion method is used to test the effectiveness of a chemical disinfectant against a particular microbe. The use-dilution test determines the effectiveness of a disinfectant on a surface. In-use tests can determine whether disinfectant solutions are being used correctly in clinical settings.Explanation:Disinfection describes a PROCESS that eliminates MANY or all pathogenic microorganisms, EXCEPT bacterial spores, on inanimate OBJECTS (Tables 1 and 2). In health-care settings, objects USUALLY are disinfected by liquid chemicals or wet pasteurization.

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because a layer NAMELY MUCUS is present in STOMACH that is why stomach remains safe from HCL

It is CALLED PLASMOLYSIS. When a plasmolysed cell is placed in a hypotonic solution, (i.e., the solution having solute concentration lower than the cell SAP), the water moves into the cell because of the HIGHER concentration of water outside the cell than in the cell. The cell then swells to BECOME turgid.

sphere is a global ecosystem composed of LIVING organisms (biota) and the abiotic (nonliving) factors from which they DERIVE ENERGY and nutrients. Earth's ENVIRONMENTAL SPHERES. Earth's environment includes the atmosphere, the hydrosphere, the lithosphere, and the biosphere.

The end products of the light REACTION are ATP and NADPH, ALSO KNOWN as assimilatory powers.The end products are ATP and NADPH: Glucose is the end product. ATP and NADPH ...Light Reaction: Dark ReactionIt is a photochemical phase: It is a BIOCHEMICAL phase

It contains the OXYGEN that we breath as well as other important gases such as nitrogen, carbon dioxide, WATER vapor, and ozone. It protects US from the SUN's harmful rays, burns and destroys meteors that are headed TOWARD Earth, and it keeps our planet from having extreme temperature changes

Unlike animal cells, plant, algal, fungal, and BACTERIAL cells are SURROUNDED by a rigid cell wall. Because of the cell wall, the osmotic influx of water that occurs when such cells are placed in a HYPOTONIC solution (even pure water) leads to an increase in INTRACELLULAR pressure but not in cell volume.

I F the answer is correct pls mark as BRAINLIST plsExplanation:निषेचन (Fertilization):- नर तथा मादा युग्मकों के संयोजन की क्रिया को निषेचन कहते है। इससे द्विगुणित युग्मनज का मिर्माण होता है। इस प्रकार के निषेचन हेतु जलीय माध्यम की आवश्यकता होती है इसमें नर युग्मक अधिक संख्या में उत्पन्न किये जाते है क्योकि स्थानान्तरण के दौरान बहुत युग्मकों के नष्ट होने की संभावना रहती है।

sexual reproduction is production between two individual parents and PRODUCE OFFSPRING. example are MAMMALS, humans,ECT.

Cells are the basic building BLOCKS of living things. The HUMAN BODY is composed of trillions of cells, all with their own specialised FUNCTION. Cells are the basic structures of all living organisms

Biological processBiological processes are those processes that are vital for an ORGANISM to live, and that shape its capacities for interacting with its ENVIRONMENT. Biological processes are made of MANY CHEMICAL reactions or other events that are involved in the persistence and TRANSFORMATION of life forms

zation is a method in which the seeds or the PLANTS are exposed to certain TREATMENTS in order to INITIATE the process of FLOWERING. Generally, the plants are exposed to cold treatment, which induces the plants to PRODUCE flowers. This term was introduced by T. D. Lysenko in the year 1920.

The digestive system is made up of the alimentary canal (ALSO called the digestive TRACT) and other organs, such as the liver and pancreas. The alimentary canal is the long TUBE of organs — including the ESOPHAGUS, STOMACH, and intestines — that runs from the mouth to the anus.

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In between the cell wall and the plasma membrane is a small amount of space CALLED the PERIPLASM. This space is RESPONSIBLE for certain types of RESPIRATION in bacteria.

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a is the ANSWER HOPE U GET it

Euchromatin contains less DNA while HETEROCHROMATIN contains more DNA. ... Euchromatin is found in EUKARYOTES, cells with nuclei, and prokaryotes, cells without nuclei. Heterochromatin is only found in eukaryotes. The functions of euchromatin and heterochromatin are gene expression, gene repression, and DNA TRANSCRIPTION.

tion:Organisms that need air to breathe WOULD die. Plants and land animals would die. Fish would die. ... However, some bacteria could SURVIVE, so losing the atmosphere wouldn't KILL all life on Earth

The word democracy COMES from the GREEK words "DEMOS", meaning people, and "kratos" meaning power; so democracy can be thought of as "power of the people": a way of governing which depends on the will of the people. ... A democracy, at LEAST in theory, is government on behalf of all the people, according to their "will".

gy✒Sociology is a SOCIAL SCIENCE that focuses on society, human social behaviour, patterns of social relationships, social interaction, and aspects of culture ASSOCIATED with everyday life.the study of human societies and social behaviourसमाजशास्‍त्र; मानव समाजों और सामाजिक व्‍यवहार का अध्ययन|@Vaishnavi Sah_❤:) OK deti hu ...here v GO..

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The cell is known as the STRUCTURAL and functional unit of LIFE because all LIVING beings are formed of cells.Cells are very important for performing various life processes which are required for sustaining life on earth.Moreover, cells give form and STRUCTURE, process nutrients and make it into usable energy.

Meiosis is the cell division that PRODUCES sex cells or gametes. In FLOWERING plants, it TAKES place in the anthers and the ovary to produce pollen grains and ovules.

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gy is the study of groups and GROUP interactions, societies and social interactions, from small and personal groups to very large groups. A group of people who live in a defined geographic area, who interact with ONE another, and who share a common culture is what sociologists call a society.50 PTS DOO Bro

(D) On the same chromosomeExplanation:Syntenic Genes. Genes located on the same CHROMOSOME. When they are so CLOSE that they can't INDEPENDENTLY assort they are linked. Linked genes with HIGHER R values are farther away.

The use of seed DRILL is BETTER because by using seed drill, seeds are down at PROPER places and proper depth. The seeds are sown perfectly. But by broadcasting there is no proper distance between seeds and they are not at proper depth also. So FARMERS consider seed drill better than broadcasting.Explanation:

To transcribe MEANS “to PARAPHRASE or summarize in WRITING.” The INFORMATION in DNA is transcribed—or summarized—into a smaller ...

The main mechanisms that have been identified through which bioenhancers can improve the bioavailability of drug molecules INCLUDE alteration of the plasma membrane fluidity to increase passive TRANSCELLULAR drug PERMEATION; modulation of tight junctions to ALLOW for increased paracellular diffusion; and ACTIVE efflux

he process by which green plants TURN carbon dioxide and WATER into food USING energy from SUNLIGHT

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a.Red blood cells, also referred to as red cells, red blood corpuscles, haematids, erythroid cells or ERYTHROCYTES, are the most common type of blood cell and the vertebrate's principal means of delivering oxygen to the body tissues—via blood flow through the circulatory systemb.White blood cells (WBCs), also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders. All white blood cells are produced and derived from MULTIPOTENT cells in the bone marrow known as hematopoietic stem cells.c.Platelets, or thrombocytes, are small, colorless cell fragments in our blood that form clots and stop or PREVENT BLEEDING. Platelets are made in our bone marrow, the sponge-like tissue INSIDE our bones. Bone marrow contains stem cells that develop into red blood cells, white blood cells, and platelets.

An abundance of alcohol can harm the liver, whose job it is to BREAK down harmful substances in the body. This can LEAD to hepatitis, jaundice and cirrhosis, which is the buildup of SCAR tissue that eventually destroys the ORGAN. Alcohol may cause kidney, bladder and prostate inflammation.

Correct option isB(ii) and (iii)The DNA fragments separate ACCORDING to their size through the agarose gel, with smaller fragments moving FARTHER away as compared to larger ones. The DNA fragments can be visualised by STAINING them with ethidium BROMIDE follo

Sickle cell ANEMIA is an inherited red blood cell disorder in which there aren't enough healthy red blood cells to carry oxygen throughout your body. NORMALLY, the flexible, ROUND red blood cells move EASILY through blood vessels. In sickle cell anemia, the red blood are shaped like sickles or crescent MOONS

Explanation:Robert HOOKE had discovered PLANT cells -- more precisely, what Hooke SAW were the CELL walls in cork tissue. In fact, it was Hooke who coined the term "cells": the boxlike cells of cork reminded him of the cells of a monastery. Hooke also reported seeing SIMILAR structures in wood and in other plants.

If LYSOSOMES are absent, toxic materials and waste PARTICLES ACCUMULATED in the cell will ULTIMATELY lead to death of the cell.

According to the theory, all living organisms are composed of cells and cell products, which are the smallest entities that can be called as 'living'.  Cells are the FUNCTIONAL unit of an organism. All living cells ARISE from pre-existing cells i.e. cells have the ability of division. Viruses are the acellular STRUCTURES that have nucleic acid and the outer protein COAT but lack DNA replication machinery and replicate and reproduce inside the host cell using the replication machinery of the host only. This MAKES them an exception to cell theory as all living organisms are capable of DNA replication and reproduction by themselves. Thus, the correct answer is option E.