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their air bladder helps to FLOATING on water . the RED gland in their air bladder make a gas for floating. and Retia Mirabilia soke this gas and the fish was as well as going in DEEP water easily THNKSSS

s an APEX CONSUMER........

is your answer mate.. HOPE it helps you my dear friend.. Please mark my answer as BRAINLIEST... ✌❤

ANSWER:EUTROPHICATION:Eutrophication (from Greek eutrophos, "well-nourished"),or hypertrophication, is when a body of water becomes overly enriched with minerals and nutrients which INDUCE excessive growth of plants and algae.This process may result in oxygen depletion of the water body. One example is the "bloom" or great increase of phytoplankton in a water body as a response to increased levels of nutrients. Eutrophication is almost always induced by the discharge of nitrate or phosphate-containing detergents, fertilizers, or sewage into an aquatic system.BIOMAGNIFICATION:Biomagnification, also known as bioamplification or biological MAGNIFICATION, is the increasing concentration of a substance, such as a TOXIC chemical, in the tissues of tolerant organisms at SUCCESSIVELY higher levels in a food chain. Biological magnification often refers to the process whereby certain substances such as pesticides or heavy metals work their way into lakes, rivers and the ocean, and then move up the food chain in progressively greater concentrations as they are incorporated into the diet of aquatic organisms such as zooplankton, which in turn are eaten perhaps by fish, which then may be eaten by bigger fish, large birds, animals, or humans. The substances become increasingly concentrated in tissues or internal organs as they move up the chain. Bioaccumulants are substances that increase in concentration in living organisms as they take in CONTAMINATED air, water, or food because the substances are very slowly metabolized or excreted.HOPE IT HELPS YOU!!!

e your answer is....... ...such as came self muscle cell have nerve cell the nucleus of animal and plant cells each chromosome is made up of protein in a single MOLECULES of deoxyribonucleic NEW acid or DNA pass from parents to offspring DNA contains a specific instruction that make each STEP of living CREATURE UNIQUE

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immunity or humoural immunity is the ASPECT of immunity that is mediated by macromolecules found in extracellular fluidssuch as secreted antibodies, complement proteins, and certain antimicrobial peptides. Humoral immunity is so named because it INVOLVES substances found in the humors, or BODY fluids. It contrasts with cell-mediated immunity. Its aspects involving antibodies are often called ANTIBODY-mediated immunity.The study of the molecular and cellular components that form the immune system, including their function and interaction, is the central science of immunology. The immune system is divided into a more primitive innate immune system, and acquired or ADAPTIVE immune system of vertebrates, each of which contains humoral and cellular components.Humoral immunity refers to antibody production and the accessory processes that accompany it, including: Th2 activation and cytokine production, germinal centerformation and isotype switching, affinity maturation and memory cell generation. It also refers to the effector functions of antibodies, which include pathogen and toxinneutralization, classical complementactivation, and opsonin promotion of phagocytosis and pathogen elimination.

e here is ur answer ...........Each nucleobase attached to ribose or deoxyribose is called nucleoside or deoxynucleoside, respectively. The FOUR nucleosides, ADENOSINE, cytidine, uridine, and GUANOSINE, are formed from adenine, CYTOSINE, URACIL, andguanine, respectively.

ytic converter is an exhaust emission control device that converts toxic gases and pollutants in exhaust gas from an INTERNAL combustion ENGINE into less-toxic pollutants by catalyzing a REDOX reaction (an oxidation and a reduction reaction). ... They are also USED on some wood stoves to control emissions.

(2)Summary. The human body is ORGANIZED at different levels, STARTING with the cell. Cells are organized into tissues, and tissues form organs. Organs are organized into organ systems such as the skeletal and muscular systems(3)(4)

.HERE IS UR ANSWER...A single capillary is so SMALL that it allows only one BLOOD cell to flow through it at a time. Thecapillary walls are ALSO VERYSMALL, only one cell thick. Thesethin walls easily allow water, oxygen, carbon dioxide, and other nutrient and waste substances to exchange between blood cells and the surrounding tissue.HOPE IT HELPS U..

cess in which tissue or cells are removed from the TIP of a GROWING plant and then placed in an artificial medium is known as tissue culture.ADVANTAGES—1) plants grown by this METHOD are disease-free.2) many plants can be grown from a single parent plant within a short period.HOPE THIS HELPS YOU ♥️♥️Plz mark it as the BRAINLIEST..

ia for LUNGS, LYMPH NODES in CASE of filariasis and HIV.

e!This is true that if there is not a proper supply of blood to the BRAIN then it will not work properly. The REASON being that brain is the one and only ORGAN which controls other organs and therefore, the blood pumped by the HEART REACHES to the brain first and that’s the reason why a person suffering from constricted arterioles is affected by brain disorder. Brain needs a great amount of energy to work which is supplied by the blood and constricted arteriole leads to less supply of blood.HOPE THIS HELPS YOU  ♥️♥️Plz mark it as the brainliest

phatic system has multiple INTERRELATED functions: It is responsible for the removal of interstitial fluid from tissues. It absorbs and TRANSPORTS FATTY ACIDS and fats as chyle from the DIGESTIVE system. It transports white blood cells to and from the lymph nodes into the bones.

nerally recommended NSAID is diclofenac when it is ... term it is SAFE, PRINCIPALLY upon their CONSISTENT utilization ...make me BEAINLIST

ferent ways in which INDIVIDUALS with a PARTICULAR trait may increase in a population, are :(i) By natural selection – Organisms with a particular trait may be naturally selected because it provided a survival advantage. That particular trait may thus increase in the population. It may direct evolution of species population by adaptations to fit their ENVIRONMENT better.(ii) Genetic drift & inheritance – An accident in small populations may result in surviving of organisms with a particular variant only. This can increase the frequency of some genes in that population, even if they give no survival advantage. This is the notion of genetic drift, which provides diversity WITHOUT any adaptations.

2-close the taps when not in useuse limited water pertaining to the purposeQ3-in the Fallopian tubeQ4-many varieties are availablenormally self pollinateQ5-it means that a trait that is seen in the phenotype as a result of environmental conditions of its surroundingQ6-Jean Baptiste De LamarckCharles DarwinQ7-The community of living organisms and the non-living part of the environment in a habitat together make up an ecosystem.two of its components are Biotic and AbioticQ8-Water MIXED with sewage may however contain E. coli so test for it may helpwater with excess fertilizers may result in growth of excess algae whose test may helpQ9-given later in the diagramQ10-during reproduction a male sperms and female egg contains half the number of chromosomes i.e. 23 due to meiosis and hence when they fuse, the chromosomes sum up to the original value i.e. 46 and hence number of chromosomes in parents and offspring are same.Q11-Thus, the flow of energy in the ecosystem is said to be unidirectional because the energy lost as heat from the living organisms of a food chain cannot be reused by plants in photosynthesis. During the TRANSFER of energy through successive tropic levels in an ecosystem, there is a loss of energy all along the path. pesticides enter in the food chain through the producers or drinking of contaminated water by any of the consumers.Q12-the diseases which transfer from male to female during copulation due to ejaculation of male body fluids into female uterus.eg. AIDSQ13-Watering harvesting means capturing rain water, where it falls and capture the runoff from, catchment and streams etc. Generally, water harvesting is direct rainwater collection. This collected water could be stored for later use and recharged into the ground water again.the recharging process promotes conservation of water sources.Q14-hormonal pillsbarriers like condoms, diaphragms, spermicidesintra-uterine devicessurgical methods i.e.vasectomy and tubectomythe health of the mother remains good for a long period of time and leads to small family and happy family.Q15-evolution is the slow and continues process whereby complex forms of life have emerged from simpler forms through millions of years.features, geographical information and fossils.bird have got their feathers later from DINOSAURS and dinosaurs were reptiles.Q16-introduced by lindemann, it says that only 10% of the energy is transfered from one tropic level to another1 joule is available to the snake.Q17-the formation of new and distinct species in course of evolution is called speciationthat is because none of those traits become x linked or y linked to be acquired by the off springs.Q18-in asexual reproduction the cell divide by dividing into two daughter cells so to maintain the same traits in mother cell and daughter cell, they have to replicate.variation may lead to evolution of certain species. eg: man evolved from monkey due to years of continuous variationsQ19-(a)(i)fallopian tube(ii)uterus(iii)placenta(b)turns into embryo in 3 weeks                     to    advanced embryo in 5 weeks                     to    foetus in 8 weeks                     to    infant in 40 weeksQ20-the transfer of pollen to a STIGMA, ovule, flower, or plant to allow fertilization.Self-pollination is the more basic type of pollination because it only involves one flower. This type of pollination occurs when pollen grains from the anther fall directly onto the stigma of the same flower. Although this type of pollination is simple and quick, it does result in a reduction in genetic diversity because the sperm and egg cells of the same flower share genetic information.Cross-pollination is a more complex type of pollination that involves the transfer of pollen from the anther of one flower to the stigma of a different flower. This type of pollination results in an increase in genetic diversity because the different flowers are sharing and mixing their genetic information to create unique offspring.Coconut flowers--------------------------------uni sexualHibiscus--------------------------------------------bi sexualAfter fertilization the zygote divides to form embryo. The fertilized ovule develop into a seed which contain embryo enclosed in a seed coat.As the seed grows the FLORAL parts wither and fall off. Meanwhile the ovary grow in size and ripen to form fruit.it took a lot of time to answer thisplease like and mark it the brainliest and comment good so i can help you at all the questions you ask                                                         thank you

_____ √ What is Malaria ?? Ans ____________ • Malaria is a DISEASE CAUSED by mosquitoes ...• Mala MEANS bad , aria means air together they made bad air...• When a female mosquito carries a germ plasmodium and bites a human being , it enters the blood along with saliva and causes malaria..______________ √ What are the SYMPTOMS of malaria ?? Ans ___________ Symptoms of malaria as shown as following :- • High fever • Several headache • Chills • Vomiting ________________ √ What are the measures to prevent malaria ?? Ans ________ • Do not allow water to stagnate in and and around house ...• Have wire mesh on doors and windows to prevent mosquitoes from entering the house...• Keep your surroundings clean...• Take anti - malaria medicines LIKE quinine to protect yourself...Thank you

hows EFFECT on ppl only when it enters the human body.....means virus cells get ACTIVATED only when virus enters the human body HOPE THIS ANSWER WILL HELP U PLEASE MARK IT BRAINLIEST

egetables Table ( made of wood) etc.... Sustainable development of natural RESOURCES is IMPORTANT as we need to meet our present demands and keep resources for out future GENERATION.... HOPE THIS ANSWER WILL HELP U PLEASE MARK IT BRAINLIEST

ite ⭐⭐✨✨^_^:-(:-(:-(:-(:-(:-(:-(:-(Your answer :-):-):-):-):-):-):-):-):-)::-):-)$$$${{{{{{{{{{. Some key origins and changes in fossilorganisms through geological time; these changes help geologists determine the ages of rocks. ... Distinctive fossils (or groups of fossils, called assemblages) can tellgeologists how old a rock is in relation to other rocks in the AREA. It wasn't until well into the 20th century that enough information had ACCUMULATED about the rate of radioactive DECAY that the age of rocks and fossils in NUMBER of years could be DETERMINED through radiometric age dating. }}}}}}}$$$$$$$$£££££&&&&&&&&&&+££Hope Help your ££££££&&&&&&&&&+£££???((((@@((☝️☝️☝️please brainliest this answer☝️☝️))))))??????????????????☘️??????????☝️✨?????????????????????????????????????????☝️^_^✨☝️???????????????????

ellRed blood cellAlgaeFungiWhite blood cellsALL have DIFFERENT shapes and RED blood CELLS are PRESENT 4.5 million mm cube in FEMALES and 5 million mm cube in males while the leukocytes or the white blood cells are 200000 mm cube to 400000 mm cube of blood

in the TRANSFER of CHARACTERS from PARENTS to OFFSPRINGS

neurons bring SENSORY IMPULSE from sensory organs to the central nervous system, whereas motor neurons carrymotor IMPULSES from the central nervous system to SPECIFIC effectors. .Sensory NEURON has afferent fiber, whereas motor neuron has efferent fiber.

es play an important role in glomerular function. Together with endothelial cells of the glomerular capillary loop and the glomerular basement membrane they FORM a filtration BARRIER. Podocytes cooperate with mesangial cells to support the structure and function of the GLOMERULUS.

and Q will have A BLOOD grp bcz A ALLELE is dominating in O allele!! HOPE it helps..

- THE TRADITIONAL WATER HARVESTING SYSTEMA khadin, also called a dhora, is an ingenious construction designed to harvest surface runoff water for agriculture. Its main feature is a very long (100-300 m) earthen embankment built across the lower hill SLOPES lying below gravelly uplands. Sluices and spillways allow excess water to drain off.PRINCIPLE -The khadin system is based on the principle of harvesting rainwater on farmland and subsequent use of this water-saturatedland for crop productionFirst designed by the Paliwal Brahmins of Jaisalmer, western Rajasthan in the 15th century, this system has great similarity with the irrigation methods of the people of Ur (present IRAQ) around 4500 BC and later ofthe Nabateans in the Middle East. A similar system is also reported to have been practised 4,000 years ago in the Negev desert, and in southwestern Colorado 500 years ago.Sensing and Geographical Information Systems can help in the determination of areas suitable for water harvesting (Prinz et al. 1998).Khadin- A traditional successful water harvesting system in India Khadin is an ancient skilful and sound scientific example of rainwater harvesting system in Western Rajasthan/ India.STRUCTURE - A Khadin is an earthen embankment built across the general slope which conserves the maximum possible rainwater runoff within the agricultural field. The size of the Khadin is designed on the basis of local rainfall patterns, catchment characteristics and soil type. On an average, the cultivated area under each Khadin is 10-14 ha with an average dam size between 1.2-1.7 m high x 1.0-1.5 m wide and 100-300 meters in length, depending upon catchment area and number of land holdings. The spillways and sluice gates are usually provided at a proper location for excess water during flood conditions. The embankment not only helps to increase moisture in the submerged land, but also prevents the washing away of the top soil and the manure added to it.For efficient agriculture, a MINIMUM of 15:1 ratio of catchment area to crop area is required. A rainfall of 75-100 mm is sufficient to charge the Khadin soils with sufficient soil moisture content to raise a successful local crop. In the Khadin area, the collect runoff percolates into the ground with time recharges the subsoil.Of the total runoff collected only 50-60% of the water is utilised. The remainder is lost to evaporation, or percolates into the UNDERGROUND, recharging an aquifer.Depending upon the amount of rainfall and consequent runoff received during the monsoon, one or two crops are grown. There is 3-4 fold increase in agriculture production, in comparison with non-Khadin conditions depending upon rainfall quantity and distribution. This system assures the farmers of at least one crop EVEN in very dry tracts. The construction cost for single Khadin ranges from US $ 125-175. This construction cost can be repaid back within three to five years. Other than improving socio-economic conditions of desert dwellers, Khadins also have created positive impact on the ecology of the region, effectively checking soil erosion and increasing vegetation cover.

IS USED AS A STAIN....SO THAT WE CAN SEE THR CELLS CLEARLY

st reports of a double HELIX MOLECULAR MODEL of B-DNA STRUCTURE were made by James WATSON andFrancis Crick in 1953.

or this it is not ENOUGH

mate,QUESTION:aerobic respiration takes place in1) cytoplasm2) MITOCHONDRIA3) nucleusAnswer:2) mitochondriathanks...NICE to help you ✌️✌️

re of Ear:Each ear consists of three portions:(i) External ear,(ii) Middle ear and(iii) Internal ear.1. External Ear:It comprises a pinna, external auditory meatus (canal) & tympanic membrane.(i) Pinna:The pinna is a projecting elastic cartilage covered with skin. Its most prominent outer ridge is CALLED the helix. The lobule is the soft pliable part at its lower end composed of fibrous and adipose tissue richly supplied with blood CAPILLARIES. It is sensitive as well as effective in collecting sound waves.(ii) External Auditory Meatus:It is a tubular passage supported by cartilage in its exterior part and by bone in its inner part. The meatus (canal) is internally lined by hairy skin (stratified EPITHELIUM) and ceruminous glands (wax glands). The latter are modified sweat glands which secrete a waxy substance— the cerumen (ear wax) which prevents the foreign bodies entering the ear.(iii) The tympanic membrane (tympanum):Separates the tympanic cavity from the external auditory meatus. It is thin and semi-transparent, almost oval, though somewhat broader above than below. The central part of the tympanic membrane is called the umbo. The handle of the malleus is firmly attached to the membrane’s internal surface.Functions of External Ear:It directs sound waves towards the tympanic membrane. The sound waves produce pressure changes over the surface of the tympanic membrane. The cerumen (ear wax) prevents the entry of the foreign bodies into the ear.2. Middle Ear:It includes the following:(i) The tympanic cavity, filled with air is connected with the nasopharynx through the Eustachian tube (auditory tube), which serves to equalize the air pressure in the tym­panic cavity with that on the outside.(ii) There is a small flexible chain of three small bones called ear ossicles— the malleus (hammer shaped), the incus (anvil shaped) and the stapes (stirrup shaped). The malleus is attached to the tympanic mem­brane on one side and to the incus on the other side.The incus in turn is connected with the stapes, which is attached to the oval membrane covering the fenestra ovalis (oval window) of the inner ear. Malleus is the LARGEST ossicle, however, stapes is smallest ossicle. Stapes is also the smallest bone in the body.(iii) Two skeletal MUSCLES, the tensor tympani attached to the malleus and the stapedius attached to the stapes, are also present in the middle ear. Stapedius is the smallest muscle in the body.(iv) The middle ear is connected with the inner ear through two small openings closed by the membranes. These openings are (a) fenestra ovalis (oval window) as mentioned above and (b) fenestra rotunda (round window).The fenestra ovalis is covered by foot plate of the stapes. The fenestra rotunda is enclosed by a flexible secondary tympanic membrane. The latter is responsible for equalizing the pressure on either side of the tym­panic membrane.

w on the five MAJOR types of plant hormones: AUXIN, gibberellin,cytokinin, ethylene, and abscisic acid. Remember that hormones are potent LITTLE CHEMICAL messengers, but they would lose their effectiveness if they HUNG around and built up in the tissues of the plant.

-=> It is a piece of farm EQUIPMENT that THRESHES grain.=> It removes the seeds from the stalks and husks.THANKS ❤