DEMERIT: It causes infection and is not a sustainable practice
* It is non living.
*It is hard, rigid..4) ANS IS IN ATTACHED PIC 5)ANS IS IN PIC6) HYBRIDIZATION is a process of combining different variety and species of organism which is genetically dissimilar to create a hybrid... IT'S TYPE. :*.Interventional hybridization :Two variety of same spices.
.*Interspecific hybridization:Two spices of same genus*Intergeneric hybridization:Between two genus hybridization.7) MERITS OF FISH CULTURE:
*Fish can obtained in less price.
* Fish can be obtained of good quality and quantity.DEMERITS OF FISH CULTURE:
*The dilevery timing of all fish r same so fish eggs destroyed.COMPOSITE FISH FARMING: It is process of raising four or five types of fish in a single pond.8)ANNILEDA:*They are also called ring worm*They have closed circulatory system .ARTHOPODAS:*They have jointed legs.*They have open circulatory system.9) The main characteristics of phylum chordata is that they have Notochord.10) Following r the characteristics of phylum NEMATODA:*They have circular , cylindrical body.*They are bilateral symmetrical.*They have pseudocoelom.*They are unisexual.*They r free living , parasitic , and aquatic.11) The most important need of scientific naming organism is that in medical colleges students or sintist belongs to different different countries , For easy to the understand the languages of each other , there is spoken synthetic names of organism.THE FOUR CONVENTION THAT FOLLOW WHILE WRITING SCIENTIFIC NAMES ARE:* First we write genus then spices name.*The first letter of genus is capital letter and the first letter of spices is small letter*When printed, the scientific name is given in italics.*When printed by hand the genus name and rhe sources name have to be underlined separately.12) Being healthy is the state of physical , mental , and social well beingness while Being disease free means absence of dis comfort in any part of our body. A healthy person can be disease free person also but a disease free person may be healthy or unhealthy.13) The animals or microbes that carry the agent or microbes of disease is called VECTORS.Vector of malaria = Female Anopheles Mosquito.Vector of Kala - azar= Liesmania.14) ROLE OF ATMOSPHERE IN CLIMATE CONTROLL: To make an average temperature on Earth.ROLE OF ATMOSPHERE IN MOVEMENT OF AIR: In day time air moves from sea to land and in Night time air moves from land to sea bcoz of atmosphere.ROLE OF ATMOSPHERE IN OCCURENCE OF RAIN:Bcoz of atmosphere rain occurs.In another words Atmosphere make rains.15) When we burn fossils fuel a large amount of Co2 comes from it that is harmful for all biotic and abiotic components of atmosphere and mix in air.In this way fossils fuels causes air pollution..........HOPE IT HELPS ......
1.The differences are-Bacterial cell (Prokaryotic Cell)- Nucleus with nuclear membrane is absent.Genetic Material is present as Nucleoid Animal Cell (Eukaryotic Cell)-A well-defined nucleus with nuclear membrane is present.Genetic material- Present inside the nucleus.
3.The husk of a coconut is made up of sclerenchyma tissue.
4.A bone is a hard connective tissue, while cartilage is soft connective tissue. Bones form the skeletal structure of the body, whereas cartilage is present in nose, ear, ribs, larynx, and joints and also act as a shock absorber in these joints.
6.hybridization results from the combination of the s orbital and all three p orbitals in the second energy level of carbon. It results in four hybrid orbitals and occurs when a carbon atom is bonded to four other atoms. This kind of hybridization occurs when a carbon atom is bonded to three other atoms.
Threat to biodiversity,
only economically important and valued fishes will be cultured.
Large amount of desired fishes can be obtained in small area,
Increased quality of food as fishes are cheaper source of protein
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(i) threat to bio-diversity
(ii) only economically important and valued fishes will be cultured.
(i) large amount of desired fishes can be obtained in small area
(ii) improvement can be done.
(a) We can have desired type and quantity of fish at will.
(b)Through fish culture we get fish meat which is highly nutritive food containing vitamins, useful fat and most easily digestible protein.
(c)Through properly improved fish culture techniques large amount of fish can be obtained from small area.
(d) Food problems can be solved to some extent.
Through fish culture the number of selectively cultured fish are increasing while the less economical fish are being discarded which is causing a threat to biodiversity and fish gene bank.
hey mate ....ur answer
I think that this may help you to get understanding...
I) merit of tissue culture are:-
a) we can produce large amount of plants in short time.
b) disease - free plants can be multiplied.
c) seedless plants can be multiplied.
d) character of the plants where sexual reproduction is absent can be combined using somatic hybridisation.
ii) Demerits of tissue culture are:-
a) it requires great expense because it needs latest techniques in the laboratory.
b) it requires Acclimatization of plants grown by tissue culture to the external environment.
c) it requires special expertise.
1.We are eating by that we are feeling healthy.
2.Because fish is healthy food.
3.It gives so much energy and it is good for eyes.
1.If we are continuing the fish culture after some days they will decrease in the sea.
2.We are dividing them from their mother are from their daughters and also from the see.