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it is muscle which change shape and size of crystalline lens to able to make image on retina ok

Ciliary muscle: A circularmusclethat relaxes or tightens the zonules to enable the lens to change shape for focusing. The zonules are fibers that hold the lens suspended in position and enable it to change shape during accommodation.

It is a muscle which can change its size and shape of crystalline lens to able and to make the image on retina perfect

A muscle which change shape and size of crystalline lens to able to make image on retina.

Ciliary muscle: A circular muscle that relaxes or tightens the zonules to enable the lens to change shape for focusing. The zonules are fibers that hold the lens suspended in position and enable it to change shape during accommodation.

The ciliary muscle UK: /ˈsɪliəri/, US: /ˈsɪliɛri/ is a ring of smooth muscle in the eye's middle layer (vascular layer) that controls accommodation for viewing objects at varying distances and regulates the flow of aqueous humor into Schlemm's canal.

ciliary muscles are present on the lens to able to make image on retina

It is found in eye lens.

ciliary muscle are present in human eyes which regulates the size and shape of eyes lens

The answer is Option 3.

Theabducens nerveexits the brainstem from the pons-medullary junction, and travels through the superior orbital fissure to innervate the lateral rectus muscle. The lateral rectus muscle is innervated through the tectospinal tract.

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Scientists combine several well-tested techniquesto find out theages of fossils. The most important are Relative Dating, in whichfossilsand layers of rock are placed in order from older to younger, and Radiometric Dating, which allows the actualagesof certain types of rock to be calculated.

Benefits offamily planning.Family planningis arguably one of the mostimportantpublic health advancements in the last century, and it isdefinedas a woman's ability to decide if and when to have children.Family planningservices include counseling, education, access to contraception, and access to safe abortion.

Thecirculatory systemof the lungs is the portion of thecardiovascular systemin which oxygen-depleted blood is pumped away from the heart, via the pulmonary artery, to the lungs and returned, oxygenated, to the heart via the pulmonary vein.

can't understand

Thecirculatory systemof the lungs is the portion of thecardiovascular systemin which oxygen-depleted blood is pumped away from the heart, via the pulmonary artery, to the lungs and returned, oxygenated, to the heart via the pulmonary vein.

The harmful ultraviolet rays of sun will enter the earth's atmosphere and it will harm the living beings, a lot of heat gets trapped and the average temperature will rise

Larva of echinodermata shows bilateral symmetry.

Larva of echinodermata shows bilateral symmetry while adults shows radial symmetry

Blood is classified as a connective tissue and consists of two main components:

Plasma, which is a clearextracellularfluid

Formed elements, which are made up of the blood cells andplatelets

The two main component of blood (1)plasma (2)platelets

The major components of our food are:

Carbohydrates.Fats.Proteins.Mineral(salts)Water.Roughage.Vitamin.

Fat, protein, vitamin, etc .....

No, we cannot consider cluster of eggs as tissues.

Tissue is a cluster of cells doing a particular work together.

But a cluster of eggs do not perform a particular work together, but do it individually. So they cannot be considered as a tissue.

Theperipheral nervous system(PNS) hastwo components: the somaticnervous systemand the autonomicnervous system.

let the first term be a and common difference be d so 5th term = a+4d 7th term = a+6d so , sum is = 2a+10d = 4.....(1) and 10th term is 46 = a+9d.....(2) now the value of A from eq.2 is.a = 46-9d

putting this is eq 1 2(46-9d)+10d = 4 => 92-18d +10d = 4 => 92-8d = 4 so 8d = 88 , d = 88/8 = 11 now a = 46-9(11) = 46-99 = -53

so A.P is -53,-42,-31,-20,-9,2,13....

no answer is 2x +3 square but the steps I don't know

Let the number be X62% of the number will be 62/100*x=0.62xand 3/5*Xis 0.62x-0.6x=360.02x=36x=36/0.02=1800

Autotrophs are known as producers ortransducersbecause they serve as energy source for the next trophic level, that is, for primary consumers. ... The function oftransduceris to convert one form of energy into another form of energy.

Domain:EukaryotaKingdom:AmoebozoaPhylum:TubulineaOrder:TubulinidaFamily:AmoebidaeGenus:AmoebaSpecies:proteus,animalcule,dubia,animalcule, etc.

No , plastics have two types of arrangements :Cross linked arrangements Linear arrangements Thermos plastics are made up of linear arrangement while thermo setting plastics are made up of cross linked arrangement

Transpiration controls the rate of water absorption. It helps in the absorption of minerals andregulate the temperature. At the same time, it has disadvantages such as it leads water deficiency in plants and thus, impair the processes of photosynthesis and growth, etc. It is therefore said ‘transpiration is a necessary evil’.Transpiration is considered to be a necessary evil because it leads to loss of water from plants but provides the plant with several advantages as well.

Creates transpirational pull for transport

Supplies water for photosynthesis

Transports minerals from soil to all parts of a plant

Cools the surface of the leaves (due to the evaporation of water)

Keeps the cells turgid; hence, maintains their shapeTranspiration is necessary because it helps in transpiration pull that indeed helps in the transportation of water throughout the plant body. It is an evil because bulk of water is lost during this process.

Because it is an inevitable, but potentially harmful, consequence of the existence of wet cell surfaces form which evaporation occurs. ... Wet surface of leaf cells allow gaseous exchange.Transpiration affects indirectly the processes of respiration and photosynthesis.

Advantage of doublecirculation: Higher blood pressure is maintained. There is a greater flow of blood to the tissues.Doublecirculation gives the ability to create more pressure to pump blood round the whole body system.

not much informative.please answer it in brief.

the filamentous structure is known as mycelium which is the body of fungus

Spores are usually haploid and unicellular and are produced by meiosis in the sporangium of a diploid sporophyte. Under favourable conditions the spore can develop into a new organism using mitotic division, producing a multicellular gametophyte, which eventually goes on to produce gametes.

Advantage of spore formation are:

1.Spore can survive under unfavorable conditions as they are covered by a hard protective coat.

2.Spores can grow to produce new plants and does not require sexual interaction with another organism.

3.Due to their small size and light weight, they can be dispersed easily.

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Nerves are cells called neurones, which make up our nervous system. Nerves are specialised cells - they carry messages from one part of the body to another, as tiny electrical signals. These messages are also known as nerve impulses. ... Together, the spinal cord and brain make up the central nervous system

function--Thenervoussystem is a complex collection ofnervesand specialized cells known as neurons that transmit signals between different parts of the body. ... The somatic system consists ofnervesthat connect the brain and spinal cord with muscles and sensory receptors in the skin.

1.papillae2.nasal cavity3.elbow

funny bone is year because these bones r fold anywhere

Thecell of injured tissuecan lead to lethalinjuryor what is known ascelldeath. This is more likea cellsuicide whichoccurswhen thecellsisdamagedand has some problem with cytoplasm or any organelles, the lysosomes automatically releases its hydrolytic enzymes and digests the cell

YES,DIFFERENT CROPS GROW IN DIFFERENT REGIONS. ACCORDING TO THE CLIMATIC CONDITIONS THE CROPS ARE CULTIVATED. EX - APPLES GROW IN COOLER PLACES, CACTUS GROW IN DESERT AREAS. LIKE THIS THE CROPS ARE CULTIVATED IN DIFFERENT REGIONS.

When women get into puberty, the ovaries start producing an hormone known as estrogen. Estrogen is responsible for the widening of the female pelvis. The bones of the pelvis are widen by this hormone as a means of preparing the woman for the process of childbirth. The estrogen are also responsible for the deposition of fat on the hip region of women, making them have a smaller waist and more pronounce hip region.

option (c) is correct.

In a tug of war, the work done by winning team is positive.

Osmosis is the spontaneous net movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides. It may also be used to describe a physical process in which any solvent moves across a selectively permeable membrane separating two solutions of different concentrations. Osmosis can be made to do work. Osmotic pressure is defined as the external pressure required to be applied so that there is no net movement of solvent across the membrane. Osmotic pressure is a colligative property, meaning that the osmotic pressure depends on the molar concentration of the solute but not on its identity.

Most biological membranes are more permeable to water than to ions or other solutes, and water moves across them byosmosisfrom a solution of lower solute concentration to one of higher solute concentration. Animal cells swell or shrink when placed in hypotonic or hypertonic solutions, respectively.

osmosis :- it is a higher consntration to lower consntration are called osmosis

Photosynthesis– a process that happens in the leavesofplantswhere sunlight, water, and carbon dioxide (from the air) are converted into food and oxygen. Chlorophyll– a chemical that is inleavesthroughout the year and that helps them make food through photosynthesis. It is also what makesleaves green.

plants prepare their food by photosynthesis because leaves are in green colour which contain chlorophyll. so leaves of a plant important.

Lateralmeristemsproduce tissues that expand the width/circumference of theplant.

1.The plant hormone auxin is responsible for a plant's ability togrow towardsthelight. The plant hormone auxin is responsible for a plant's ability togrow towardsthelight. As we know from looking at plants on a windowsill, theygrow toward thesunlight to be able to generate energy by photosynthesis.

2.1) auxin2) cytokines3) auxin4) indole acetic acid

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Thefirst trophic levelof thefood chainisalways occupiedby green plants which are termed to be producers. This is becauseproducers absorb sunlight, abiotic factor and fix it intofood chain. This energy is transferred to organisms in other trophic levelsof thefood chain.

A system of interconnected food chains between various organisms is called a food web. A food web maintains ecological balance by maintaining the interdependence of different organisms.

A system of interconnectedfood chainsbetween various organisms is called afood web. Afood webmaintains ecological balance by maintaining the interdependence of different organisms.

Producers: Producers manufacture foods by converting sunlight to energy in the process of photosynthesis. One good example is the chlorophyll-bearing plants and photosynthetic bacteria. But some producers manufacture food without the aid of sunlight by just using chemical energy of simple inorganic substances like mushrooms

Consumers: This is mostly composed of herbivores, carnivores and omnivores. Macroconsumers are large consumers like animals depends food on other organism. Hence, macroconsumers like decomposers may also described as heterotrophic. The hetero which means other because the term describe organisms the feed on others, macroconsumers are grouped into three according to their food preferences.

Decomposers: Decomposers refer to small consumers like bacteria, fungi and worms that cause the decay of dead organism. They are sometimes called to as microconsumer because many of them are microorganisms that are too small to be seen by the naked eye.

The interactions between theliving organisms is called food web it is essential because it is very much important for our ecosystem plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz like my answer

An ecosystem is a community made up of living organisms and nonliving components such as air, water, and mineral soil. Ecosystems can be studied in two different ways. They can be thought of as interdependent collections of plants and animals, or as structured systems and communities governed by general rules. The living and non-living components interact through nutrient cycles and energy flows. Ecosystems include interactions among organisms, and between organisms and their environment. Ecosystems can be of any size but each ecosystem has a specific, limited space. Some scientists view the entire planet as one ecosystem.

An ecosystem is a community made up of living organisms and nonliving components such as air, water, and mineral soil. Ecosystems can be studied in two different ways. They can be thought of as interdependent collections of plants and animals, or as structured systems and communities governed by general rules. The living and non-living components interact through nutrient cycles and energy flows. Ecosystems include interactions among organisms, and between organisms and their environment. Ecosystems can be of any size but each ecosystem has a specific, limited space. Some scientists view the entire planet as one ecosystem.

An ecosystem is a community made up of living organisms and nonliving components such as air, water, and mineral soil. Ecosystems can be studied in two different ways. They can be thought of as interdependent collections of plants and animals, or as structured systems and communities governed by general rules. The living and non-living components interact through nutrient cycles and energy flows. Ecosystems include interactions among organisms, and between organisms and their environment. Ecosystems can be of any size but each ecosystem has a specific, limited space. Some scientists view the entire planet as one ecosystem.

Anecosystemis acommunityof living organisms in conjunction with thenonliving componentsof their environment, interacting as a system.[2]Thesebioticandabiotic componentsare linked together through nutrient cycles and energy flows.[3]Energy enters the system throughphotosynthesisand is incorporated into plant tissue. By feeding on plants and on one-another,animalsplay an important role in the movement of matter and energy through the system. They also influence the quantity of plant andmicrobialbiomasspresent. By breaking down dead organic matter,decomposersrelease carbon back to the atmosphere and facilitatenutrient cyclingby converting nutrients stored in dead biomass back to a form that can be readily used by plants and other microbes.[4]

An ecosystem is a community of living organisms in conjunction with the nonliving components of their environment, interacting as a system. These biotic and abiotic components are linked together through nutrient cycles and energy flows.

Anecosystemis acommunityof living organisms in conjunction with thenonliving componentsof their environment, interacting as a system.[2]Thesebioticandabiotic componentsare linked together through nutrient cycles and energy flows.[3]Energy enters the system throughphotosynthesisand is incorporated into plant tissue. By feeding on plants and on one-another,animalsplay an important role in the movement of matter and energy through the system. They also influence the quantity of plant andmicrobialbiomasspresent. By breaking down dead organic matter,decomposersrelease carbon back to the atmosphere and facilitatenutrient cyclingby converting nutrients stored in dead biomass back to a form that can be readily used by plants and other microbes

The (light)compensation pointis the light intensity on the light curve where the rate of photosynthesis exactly matches the rate of cellular respiration. In assimilation terms, at thecompensation point, the net carbon dioxide assimilation is zero.

please explain in easy language..