okay we are picking from how we had stopped yesterday concerning the biotic factors in an ecosystem and how they affect the distribution of living organism after discussing all such ability factors were supposed to pick from wind wind as an operatic factor we say the Beauty factors are physical factors their environmental nonliving factors that affect the distribution of living organisms in the ecosystem without forgetting III the Niko system is a natural unit composed of biotic and abiotic factors whose interaction 3 - a self-sustaining system so how does win defer to the division of living of anything and first of all what's wind we know very well that wind is in motion when this air in motion or simply moving and so wind excessive wind excess we know when this strong wind it effects transgression excessive wind can increases the rate of transpiration it increases transpiration rate wind when there is strong wind it increases transpiration rate and we know translation the loss of water vapor from the plant service so strong wind increases transgression in this case it's an a disadvantage because it can lead to permanent wilting excessive loss of water then it also increases evaporation evaporation is increased it increases evaporation from the body surface of living organisms wind also necessities or wind facilitates it facilitates pollination window facilitates pollination and pollen is in this case we talk about insect pollinated insect pollinated flowers or plants it facilitates pollination the transfer of pollen grains from the and extrema the pollination when we talk about not insect pollinated but wind pollinated flowers vertical and modulus wind also leads to fruit and seed dispersal fruit it assists or it aids in fruits and seed dispersal fruits and seed dispersal wind facilitates foods and seed dispersal dispersal means the spread the spreading away of the fruits and seeds and we notice an advantage because it reduces overcrowding wind facilitates or it leads to web wind lifts waves in lakes and oceans in lakes and oceans wind lifts - with in lakes and oceans and all of these waves which leads to what we call aeration the webs leads to what we call Allison Allison means no free secretion of gases this accretion of air in the water bodies which is an advantage to aquatic living organisms wind also influences wind influences wind inferences predation wind influences predation it in effects predation and migration of animals and the migration of animals and migration of animals wind influences predation and migration of animals how we talk about predation with a reputation as a form of biotic factor where one organism called data hunts and kills another one called debris so wind assists in terms of talk about location of the sent all the location of the smell of ADA debris are the predator so it can be able to follow where their sense or where the smell is coming from because of wind migration animals can migrate bill to that following of that sense and finally in terms of wind as an a biotic factor the speed of wind speed of wind is measured speed of wind is measured using an instrument called an anemometer called anemometer and the direction of wind direction of wind is measured using wind sock or using a wind vane can use the will event or a wind so remember we say disapper you take factors as much as you are discussing how they influence distribution of living organisms you must also mention the instrument which is choose to do what to measure that aspect then after understanding this wind the last the last one not a necessary the last one we talk about the pH the pH as an amputee factor pH as an a biotic factor pH the other one is pH hydrogen pH hydrogen ion concentration hydrogen ion concentration hydrogen ion concentration hydrogen ion concentration that is the pH so how does pH the pH in this the pH differences distribution the pH influences the distribution it influences the distribution of organisms of organisms of organisms in the soil organisms in the soil and in fresh water good habitat and in fresh and in fresh water habitats and in freshwater habitats and in freshwater habitats we talked about I didn't iron concentration we are talking about acidity some division can say pH means acidity or alkalinity so the hydrogen ion concentration it in France the suspicion of organisms in the soil and in fresh water bodies because there are some aquatic plants which grow in the fresh water so in terms of plants some plants some plants some plants thrive some plants thrive where in acidic soils some plants thrive well in acidic soils while others while others while others thrive while others drive well in alkaline in alkaline [Music] habitats someone's right where in acidic soils well at once a well in alkaline soils or in that habitat so the pH there those plants which can do well in acidic conditions acid there those ones which can do well in alkaline solution so it depends those plants every plant has another patient to make it survive in the an divot is an acidic condition or if it is in alkaline solution there is some also which can do well in neutral conditions some can do well in neutral conditions no it's too acidic not too alkaline so the pH is the hydrogen ion concentration it influenced the dispersion organisms in the soil and in the freshwater notes in marine freshwater is the water which has low perspiration of salt or no salt then the pH finally the pH is measured the pH is measured using the pH scale messages in the pH scale are pd h pd h universal indicator pd h universal indicator some saying this the ph only affect the distribution of luminance in soil and the freshwater habitats who see the habitat is a specific locality with a particular set of conditions where living organism lives or occupies so we have categories of plants which can survive or which can grow or which can do well in acidic soils or habitat that those ones which can do well in the alkaline soils the reduced ones which can do well in neutral conditions or in neutral soils so a plant cannot do well at the same time in acidic in alkaline and a neutral it must be a specific habitat then the last one is salinity the last one of biotic factor is salinity last one a biotic factor is the limited salinity the last one is salinity salinity refers to salinity River to sort it reverse to salt concentration it reverse to salt concentration in water in water bodies we talk about an environment is Sally Sally Sally the salt salt concentration in water salt was written in water bodies I'm specifically in water bodies not in soils in water bodies so all congestus refers to salt concentration can also be salt concentration salt concentration refers to salt concentration in aquatic habitats in aquatic environment or in the aquatic habitat salt concentration in aquatic environment so we have categories of aquatic environment aquatic environment is divided into three aquatic environment aquatic environment is divided into three aquatic environments waded into three we have fresh we have fresh fresh water environment fresh water environment of which environment we have marine environment we have marine environment and we have assurance environment we have a Charice environment so you talk about the freshwater environments the salt concentration salt concentration salt concentration is low or there is no are no salt or no salt concentration the marine the marine environment the marine environments there is high concentration high concentration in the marine environment there is high concentration of salts high concentration of salts that are stable high concentration of salts that are stable high concentration of salts that are stable in each raise the concentration of salt concentration the concentration of salts varies the construction of salts varies or tend to fluctuate it varies or it fluctuates the same salinity is the salt concentration in the aquatic environment water environment all in the water bodies aquatic environment is divided into 3 we have the freshwater environment in terms of salt for the tration in terms of salt concentration the aquatic environment is divided into 3 we have the freshwater environment we add the salt concentration is very low or there is no source for saturation in that water body marine environment there is very high compression of souls that are stable the source of pressure in terms of measurements are very stable estuaries and talk about the issue is or can Justice say the issue arise the Ishwara environment the concentration of salts varies it tends to fluctuate goes high or low but it is not stable then how does salinity affect its revision of living organisms it affects salinity affect salinity affect our it influences osmotic salinity effects osmotic 3d effects osmotic pressure osmotic pressure of living organisms it affected osmotic pressure of living organisms [Music] the recently saline environment is divided into two in terms of the salt of resin we have the freshwater the marine the Essure is so a the fresh marine or a cherries they tend to interfere with the smooth press of living organisms in terms of their cells organisms in each habitats organisms in each habitat organisms in each apatite organisms in each habitat organisms in each habitat have adaptations have adaptations organisms in each habitat have adaptations which enable them to survive which enable them which enable them to survive which enables them to survive which enable them to survive the organism is an organism surviving in the for example in the Indian Ocean which is a marine environment it has some adaptations which makes that organism to survive there with that type of fish living there it has some adaptation if it is a crocodile which is found in the freshwater environment Cosmos crocodiles they don't live in the marine environment salts it has some adaptations to reroute words to the great it is osmotic pressure to regret it is osmotic pressure to regret its osmotic pressure the salt concentration can be measured by using the titration method or by simply measuring the amount that salt concentration in water using their the titration method then after finishing the a biotic factors in the ecosystem which are nonliving environmental factors and how they affect the distribution of living organisms next well you know that each biotic stays on its own paragraph if you in terms of an efficient reduce wins its own paragraph say how it affected its mission of living on Lansing's what is used to measure that then now I can live before I go to something else I can just live there as an assignment you could be trying on your own this is explained how the following have the following a biotic factors how the following a biotic factors is an assignment you do on your own so now the following abilities influence influence the distribution influence the distribution of living organisms out the inference suspicion of living organisms in the ecosystem in the eco system one is water or rainfall two is wave action that's what we call currents with action three is soil composition soil composition soil composition then for is soil texture soil texture 5 is topography is topography its topography you need to do research on this you write these are I should see five paragraphs were written well explained using biological terms because you also need to dig deep and work hard don't need to sit there under way to be spoon-fed you must go and work hard do research on this as much as you are wasting as much as you are also concentrating on york then now after that we proceed from our breakdown net is the nitrogen cycle the nitrogen cycle then we are under college the nitrogen cycle the nitrogen cycle the nitrogen cycle supposed to see what is a nitrogen cycle talk about the nitrogen cycle white we said nitrogen and ecology nitrogen is required in plants for synthesis of proteins for the synthesis of proteins making proteins and no proteins that a body building for so nitrogen is needed and talk about the nitrogen cycle we are talking about the cycling of nitrogen and some of its compounds in nature nitrogen as an element is found in the atmosphere how does that nitrogen enters plants then plant it was two animals because remember we said plants are primary producers they're primary producers so when I talk about the nitrogen cycle we're into the two ways in which nitrogen is made available to planets remember plants don't take nitrogen as an element but they absorb nitrogen in the process called absorption and what they observe is the nitrate is article the matrix the matrix so nitrogen is made available to plant through a process called matron fixation method and fixation has nitrogen fixing in plants we are going to see that later so I'm saying matrices likewise the recycling of nitrogen and the sum of its compounds in nature how nitrogen comes enters the soil from the sweet was the atmosphere from that Mesilla it comes to the plants but in a talk about fixation how do now plant roots absorb that nitrogen I'm saying it is true absorption and if they take in nitrogen in formal matrix notice the nitrogen element not as a nitrogen element or as a nitrogen gas but in formal nitrates so when we talk about the process of nitrogen fixation the whole procedure can give clear definition I have said that nitrogen cycle is the cycling of nitrogen is the cycling of nitrogen is the cycling of nitrogen is the cycling of nitrogen is the cycling of nitrogen the securing of nitrogen and some of its compounds and some of its compounds and some of its compounds and some of it is compounds and some of its compounds in nature and some of its compounds in nature or some of its compounds in nature this is what I'm saying the nitrogen may talk about cycling the nitrogen the nitrogen is in the atmosphere the nitrogen is the atmosphere the indata nitrogen goes to plant from plants it goes to animals from the animals again it can go back to that Messiah and from plants it can go back to that most fear we are talking about the cycling of nitrogen and some of its compounds in nature so the nitrogen cycle starts with the element nitrogen in air it started the element nitrogen in air this what I'm saying it starts it starts with the nitrogen it starts with the nitrogen element in a Thursday I tried the maitre d element in the end the atmosphere so when I talk about the nitrogen the process through which later the now is incorporated into the plants bodies so that they can make proteins the animals eat proteins either directly by feeding on plant or indirectly by feeding on other animals which are fed on clients presume when you feed on meats from a camel the camel has fed on green plants the green plants are the ones which are transferred that nitrogen in form of proteins so nitrogen that process called metrodome progression the nitrogen fixation saying the process the process through which through which nitrogen is made available is made available Oris incorporated the process through which nitrogen is made available to plants for absorption to plant for absorption in the soil in the soil is known as nitrogen is known as nitrogen fixation is known as nitrogen fixation is known as nitrogen fixation so these are doing between nitrogen cycle nitrogen fixation the process by which nitrate is made available to plants for absorption the soil is known as nitrogen fixation meperidine fixation is done in two ways the result equal talk about nitrogen fixation the nitrogen fixation the nitrogen fixation is done in two ways nitrogen process of nitrogen fixation process of nitrogen fixation the process of nitrogen fixation rostov nitrogen fixation is done in two ways the Dan in two ways is done two ways the first ones ethical non-biological non biological nitrogen fixation non biological nitrogen fixation and the second one is biological nitrogen biological nitrogen fixation biological nitrogen fixation done in two ways how metrid is made available non biological and biological let me start with non biological nitrogen fixation non biological process non biological process manuela to nitrogen fixation we talk about non biological we mean there is no living organism which is involved in making nitrogen to be available non-biological no nitrogen no living organism is involved in transforming the nitrogen element into matrix because plans take nitrogen and form of nitrates through absorption so non-biological process this is during thunderstorms during tanda and latinum the nitrogen in the atmosphere combines with oxygen to form nitrogen for excited the net return for oxide remember when I talk about tandem retaining you cannot have done and returning without rain so during rainy season when there is thunder and lightning the thunderstorms turn enlightening the nitrogen in the atmosphere combined three stalks to form nitrogen for oxide gas the nitrogen folks Adina's will be solved in the rainwater to form nitric acid and Metra's acid alpha metric 5 acid and metric for acid from metric 504 acid then they those two acids they will dissolve in the soil because the rain is falling down the in the solvent soil as acid rain then in the soil they will combine its chemicals in the soil to form matrix then the matrix are absorbed by the plant roots and it is being used in the synthesis of proteins so I'm saying during tonga during [Music] tonga storms and lightning during thunderstorms and lightning nitrogen in the atmosphere Kumasi gas combines with oxygen as a gas to form nitrogen for to form nitrogen for oxide gas to form nitrogen fox and gas the nitrogen for oxide gas the nitrogen for oxide gas will dissolve in the rainwater this is the rainwater the rainwater which is the liquid to form two assets the assets am saying are the nitric acid or nitric 5 acid which is acquired plus nitrous acid the Metra's acid which is acquires in this case then these two assets the two acids will form the two acids these two assets these two assets the two acids will dissolve in the soil they will dissolve in the soil they'll dissolve in soil which combination of some ions or chemicals with some ions in the soil with some chemicals in the soil with some chemicals in the soil to form matrix to form matrix then the matrix are the ones which are going the nitrates are the ones which are going to be absorbed by the plant roots to make what we call the synthesis of proteins so this is what I'm insisting the nitrogen fixation is done in two with non biological and biological I'm saying by non-biological non biological there is no involvement of any living organism or macro consists simply during thunderstorms when it's raining the light and at under the sound you hear plus that light we recombine nitrogen gas with oxidizing atmosphere because this has a cellphone that Mesilla to form nitrogen for the nitrogen flow will dissolve in rainwater to form the net Raqqah Metra's acid then these two acids will fall down as acid rain then they dissolve in the soil when they dissolve in the soil they will combine with some of the chemicals which are found in the soil to form nitrates when they form the nitrate to form nitrates then the nitrate ions but is there I saw these radicals then they're the ones which are going to be absorbed so a radical they're going to be absorbed by the plant roots and their own to be used in the synthesis of proteins and the animals were obtained protein territory by feeding on plants or indirectly by feeding on other animals which had already fed on those plants because it's a plant at the primary producer after understanding that allow me please to vote the last one before I draw Floyd cattle the psycho then biological nitrogen fixation biological nitrogen fixation the biological nitrogen fixation biological nitrogen fixation the biological nitrogen fixation biological nitrogen fixation biological agent fixation and talk about biological we are talking about living organisms which assists living organisms which assists in the fixing of nitrogen to planet this one major is done by living organisms example living organisms we have a we have symbiotic we have symbiotic symbiotic bacteria we have selected bacteria we have free living bacteria free living bacteria free living bacteria we all fear living the free living bacteria and this case can talk about the Clostridium the living bacteria Clostridium this one can talk about the res opium the res opium then you can also talk about some alga their allies is their living organisms the al guys which fix that nitrogen nah stock and Nibbana can talk about de NOS stock na stock and Nibbana and Nibbana and Carrera and Nibbana and Carrera so let's see what happens what happens when these living organisms what we call the biological ones when they fixed nitrogen kula stadium so let's start with the distributing bacteria you have two types of a parasympathetic with its imputing part when we are discussing about biotic factors symbiosis symbiotic bacteria desire bacteria which lives this material Dena Marie stay in the they stay in the root in the root nodules in the root nodules the root nodules of legumes plants in the root nodules of legumes Mina's leguminous plants the imminence for example you are talking about the peas the copies these are the nodules repeating again the nodules are swellings these are not you not you so spellings on those plants which grow in nitrogen division soils so the symbiotic bacteria will convert the nitrogen this beauty bacteria we're no Marie convert the nitrogen the Unimog converts free nitrogen to matrix they convert free nitrogen they convert free nitrogen to nitrates that is in the soil they convert free nitrogen into nitrates they convert the free nitrogen into nitrate and the plants will absorb these nitrates in the process of absorption remember man assisting plants don't take nitrogen as a free element but in form of matrix this iron or that radical the next we can proceed ahead and talk about the free living bacteria the fixed nitrogen in the soil also the same as by forming changing the nitrogen into nitrate the Unruh they are no stock an abandoned the carrera they fixed nitrogen also to form nitrates and the plants are going to observe these nitrogen nitrates to make proteins also can also talk about when plants die and animals die they decompose when animals and plants die they decompose are directly composed by the soprofesh bacteria so in summary form we are saying the biological intrusion fixation is done by three living on since symbiotic bacteria that there is opium which lives in the routine orders of leguminous plant there then we have the free living bacteria free living free living that's not to depend on remember this simplistic is depending on shelter carbohydrates water from that routine Odile's and also the same time it's fixing the free living it's found freely depending on its own an example is the Clostridium then they all die which also assists in fixed met Roger is the Gnostic anabaena and the Carrera so next our next list so next time we're going to pick one from the nitrogen cycle and how do these biologic or living organisms fix the nitrogen in the soil that's in the next lesson we're going to pick on from there we discussed house music phylidia the al-rai and in form of also we draw the nitrogen cycle the flow chart to show how the process of cars for today thank you so much