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The birth control Pill.

The Male Condom.

The Female Condom.

The Diaphragm.

The Cervical Cap - Femcap.

The Intrauterine Device (IUD) .

The Contraceptive Implant.

yours normal female friends

The number of trees cleared from a particular area for the establishment of industry,should be planned to some other place .

more and more use of renewable resources wind or solar energy ,should be promoted so that non-renewable resources of energy like coal,petroleum should be conserved.

recycling of waste should be done so that they can be reused again.

(a) Water is an elixir life, a very important natural resource. Your Science teacher wants you to prepare a plan for a formative assessment activity, "How to save water, the vital natural resource." Write any two ways that you will suggest to bring awareness in your neighbourhood, on 'how to save water.'(b) Name and explain any one way by which the underground water table does not go down further.

Solution

a) Water is a very important natural resource which is required for every activity. it is known as the elixir of life due to its importance in the life of the living organisms. The sources of water are depleting and so there is need to save the reserves. The ways by which water can be saved are:

Use the water used for washing vegetables for watering the plants

Do not waste excessive water during bathing, flushing, etc.

b) One of the common methods for preventing the ground water level to go down further is through afforestation. The planting of the new trees will allow the soil to be held tightly by the roots of the plants. This will prevent soil erosion and surface run-off of the water. The water will seep slowly intothe ground and help in maintaining the water level.

7, 77, 777, 7777 ….to n terms. Sn=7+77+777+7777+……+to n termsintroducing 9 = (7/9) [9+99+999+……+ to n terms] = (7/9) [(10-1) + (100-1) + (1000-1) +……...+ to n term] = (7/9) [10+100+1000+……... n terms – (1+1+1+1+…… n terms) = (7/9) [10+100+1000+………n terms –n] Here a=10, r=10= (7/9) [10(10n-1)/ (9) - n]

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Cerf proposed the bet and challenged that Dr. Seuss would not be able to write an entertaining children's book using only 50 different words. Dr. Seuss took the bet and won. The result was a little book calledGreen Eggs and Ham.

b.Embryo Sac

A-Aerobic respirationB-Anaerobic respiration

A is aerobic respiration as in this type of respiration energy is released in high amount as shown in the graph. B is anaerobic respiration as in this respiration energy released is very less as shown in graph

Gametes are mature haploid cells whichfuses with another gameteto produce a diploid cell called a zygote, which further develops into fetus.

Thezygoteis the first cell of the embryo and carries all the maternal and paternal genetic makeup which helps in the formation of a new organism.

Ex situ conservation is the conservation and maintenance of samples of living organisms outside their natural habitat, in the form of whole plants, seed, pollen, vegetative propagules, tissue or cell cultures

Answer: In-situ conservationrefers to theconservationof any species in its natural habitat without transferring them anywhere. ...Ex-situ conservationrefers to theconservationof any species outside its natural habitat.

Answer:It is mode of conservative method of endangered species

Explanation:

In situ conservation is natural conservation includes sacred grooved, reserved forest....,

Ex situ conservation is protecting the animal in manually, it includes zoo, Cryopreservation, wild life sanctuarie

It is applied to conservation of agricultural biodiversity in agro forestry by farmers, especially those using unconventional farming practices.

in situ conservation the wildlives are reserved in there own area but in ex situ conservation the wildlives are reserved in areas different from their own place.

in situ conservation means- the protection of animals in their own natural habitation ex situ conservation means- protection of animals by shifting them to other suitable habitats

in situ conservation means on site conservation means plants/animals are conservation at their original habitate where they live and ex situ conservation means off site conservation ,in it plants/animals are taken out from their original habitat and conserved at any other safe place..

Aspecies or a population sample of a particular part of its genetic variation can be maintained through in situ or ex situ conservation. In situ conservation is the preservation of species and populations of living organisms in a natural state in the habitat where they naturally occur.. Ex situ conservation is the preservation and propagation of species and populations, their germ cell lines, or somatic cell lines outside the natural habitat where they occur. This method maintains the genetic diversity extant in the population in a manner that makes samples of the preserved material readily available.

-In- situ :The the given term means the plants are conserved in the original place that is natural habitat of them these are the conditions with genetic resources exist with an ecosystem and natural habitats are in the case of domesticated species in the surrounding where they have developed.-Ex- situ :Ex- situ literally means " off-site" conservationit is the process of protecting endangered species variety of plants and animal outside its happen natural habitat.

Examples of ex-situ conservation are-1-Botanical gardens2-wildlife parks3-seed banks

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Money supply is the total amount of money in circulation or in existence in a country.

Potato is considered as a stem because it is having the nodes and inter nodes and even buds. these three characteristic of the potato has made it a stem instead of a tuber.

Two plants used as green manure1. Alfalfa2. Buckwheat

After fertilisation is attached to the uterine wall in uterus this process is implantation.then full development of embryo takes place in uterus this process is gestation period.food is provided to the feotus by placenta.

when egg is not fertilised then it is expelled through vagina of the body with lots of blood as the thick layering of uterus breaks down

Amoeba reproducesby the common asexualreproductionmethod called binary fission.

other than carbon dioxide and oxygen plants use nitrogen which they get with the help of their roots or with the help of insects in some plants.

Deforestation, clearance, or clearing is the removal of a forest or stand of trees from land which is then converted to a non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. The most concentrated deforestation occurs in tropical rainforests.Please hit the like button if this helped you

Distraction is a thing that prevents someone from concentrating on something else.

Homology refers to the traits inherited by two different organisms from a common ancestry. Organs such as bat's wing, wings of birds, seal's flipper, forelimb of a horse, and human arm have a common underlying anatomy that was present in their last common ancestors; therefore their forelimbs are homologous organs.

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The organs with same structural design and development origin but differing in their functions are called homologous organs. Eg: Forearms of a horse and the hands of humans

Placenta - A special tissue embedded in the uterus wall with the help of which human embryo gets nutrition from mother’s blood.Function:

To provide large surface area for glucose and oxygen to pass through mother’s blood to the embryo.

The metabolic waste generated by embryo is removed through placenta into mother’s blood.

Synapse, also called neuronal junction, the site of transmission of electric nerve impulses between two nerve cells (neurons) or between a neuron and a gland or muscle cell (effector).

A synaptic connection between a neuron and a muscle cell is called a neuromuscular junction.

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Ans :- Amphoterism. In chemistry, an amphoteric compound is a molecule or ion that can react bothas anacidand as abase. Metaloxideswhichreact with both acidsas well asbasesto producesalts and water are known as amphotericoxides. Amphotericoxidesinclude leadoxideand zincoxide, among many others.

true, anything that occupies space and has weight is called mattertrue,kinetic energy increases with increase in temperature.

The hypertonic solution( high concentration of salt) in which the plasmolysed cell is kept occupies the space between the cell wall and the shrunken protoplast in a plasmolysed Cell.

snake is a cold blooded animal.

Snakes are cold blooded or ectothermic. This means that they don't have the means to regulate their body temperature like warm blooded creatures.

(b) is correct option

snake is a cold blooded animal

Snake is a cold blooded animal.

snake is cold blooded animal

snake is cold blooded animal

snake is the cold blooded animal (b)

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Fruits of wildparsnipare parthenocarpic.

Coelomate and pseudocoelomate are two classes ofmulticellularanimals that are classified based on the type of body cavities they have.

The body cavity of animals is called the coelom. The coelom develops from themesodermduring embryonic stages.

It surrounds the digestive tract and other organs of the body. The coelom is filled with coelomic fluid that serves as a hydroskeleton.

The coelomic fluid allows the free movement of internal organs in the body. It also allows the transport of nutrients, gases, and waste products throughout the body.

Themain differencebetween coelomates and pseudocoelomates is thatcoelomates possess a ‘true’ coelom as their body cavity whereas pseudocoelomates possess a ‘false’ coelom.

duck is a smallest bird that lives on the ground.

Duck ,geese are the kind of birds mentioned.

Fertilization involves the fusion of sex cells or gametes to initiate the development of a newly fertilized egg.

Double fertilization: It occurs when one male nucleus fertilizes (fuses) with egg cell to form zygote cell and other male nucleus fuses (fertilizes) with two polar nuclei to cause triple fusion.

. Astomais the opening on a plant leaf, but there are specialized cells surrounding eachstomathat control how open or closed it is. These specialized cells are called guard cells, and they are triggered by a number of factors, such as sunlight, humidity, temperature, and internal plant chemistry

To conserve water during dry times, the stomata remain closed to reduce the loss of water vapour. Due to the requirement for carbon dioxide, it is possible for the lack of moisture that forces the stomata to stay closed to prevent the process of photosynthesis from occurring. The number of stomata on the epidermal surface can tell you a lot about a plant. Usually, a high concentration of stomata indicates fast growth and a wet climate. Lower concentrations of stomata indicate lower rates of photosynthesis and growth or adaptations for dry weather. Stomata are useful to drought-threatened plants because they can close to prevent dehydration

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