Select Board & Class
write the harmful effects of using plasatic bags, on the environment. suggest alternatives to plastic bags.
i want written evs project on the topic -"It is possible to reduce river pollution by using the sewage water for irrigation" with the following points:First term1.selection of project2.objectives3.review of literature4.relevance5.proposed methodologySecond Term1.decription of method followed2.observations3.analysis4.result/conclusion5.report writing
what is biomagnification?
public interest litigation
Discuss the causes and effects of global warming. What measures need to be taken to control global warming?
Dear experts
Can you help me out in choosing an investigatory project in biology class 12th ? kindly requesting u to rply
wat is the el nino effect? how does it affect biodiversity?
Explain Biochemical Oxygen Demand (BOD)???
what do u mean by phaeophytization? plz giv a detailed info
what is EL Nino effect
why are green algae not likely to be found in the deepest strata of the ocean?
1. What is organic farming? How did Ramesh Chandra Dagar practice this?
What is polyblend? point out its raw material. How will it be advantageous?
Why ozone hole is devoloped in Antarctica?
What are the effects of ozone depletion???
short note on controlling vehicular air pollution : a case study of delhi
answer it fast plzz///
what are EcoSan toilets
Kyoto Protocol was endorsed at
1. Cop-6
2. Cop-4
3. Cop-3
4. Cop-5
Please answer with reason
Spoilage of oil can be detected by which fatty acid?1) Oleic acid2) Linolenic acid3) Linoleic acid4) Erucic acid
identify unnecessary sources of noise pollution which can be reduced immediately without any financial loss to anybody?
short note on ozone depletion in the stratosphere?
What measures, as an individual, you would take to reduce environmental pollution?
What is the objective of Environment Protection Act , 1986 ?
full form of JFM
what is BOD? (expansion)
defination of 1.Soil Erosion and 2.desertification.
Solve this: Two genes A and B present on same chromosome show 30% recombination frequency, then what will be the percentage of gamete (aB) for the plant having genotype AaBb in cis arrangement : (1) 40% (2)70% (3) 20% (4) 15%
Describe the significance of ozone layar. What are the causes of its thinning?
working of electrostatic precipitator
deforestration decreases with enhanced awareness of forest conservation
what is phaeophitisation?
how to prepare for AIPMT in these 40 days after boards? I am thorough with class 12 cbse pattern syllabus but what about class 11 syllabus and class 12 entrance syllabus?very confused plz?
Can u provide materials for a project on water pollution??????
What is the difference between reforestation and deforestation??? (atleast 3 points)
what do u mean by smokestacks and smelters?
what is meant by evencs??
incinerated means??
Why fertilizers and manure are added in the soil?
plz define me the exat definition of greenhouse effect nd global warming?
HOW WATER LOGGING AND SOIL SALINITY ARE RELATED, ALSO DEFINE BOTH OF THEM?
hey r u from rgukt
'Evencs the only solution for treatment of e-wastes'. What does 'evencs' mean in this sentence?
What are the various constituents of domestic sewage ? Discuss the effect of sewage discharge on water bodies.
what is biomagnification?please explain .
describe the participation of people in the conservation of forests in india by taking bishnoi community incident and chipko movement as examples. add a note on joint forest management
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Syllabus
write the harmful effects of using plasatic bags, on the environment. suggest alternatives to plastic bags.
Q.171. The given nervous system figure illustrate the axonal membrane and propagation of nerve impulse what will be the direction of propagation of nerve impulse:-
(1) X Y
(2) Y X
(3) Z Y
(4) Y Z
i want written evs project on the topic -"It is possible to reduce river pollution by using the sewage water for irrigation" with the following points:First term1.selection of project2.objectives3.review of literature4.relevance5.proposed methodologySecond Term1.decription of method followed2.observations3.analysis4.result/conclusion5.report writing
155. Which one is incorrect with respect to gel electrophoresis :-
(1) Wells for DNA sample loading are made at anode
(2) Largest bands of DNA lie far away from anode
(3) Smallest bands of DNA lie near to anode
(4) Both (1) and (3)
what is biomagnification?
Q.123. A holandric gene is known for hypertrichosis (long hairs on ears). When a man with hairy ears marries a normal woman, what percentage of their sons would be expected to have hairy ears :-
(1) 100 %
(2) 0 %
(3) 50 %
(4) 25 %
Select the correct Statement regarding mechanism of concentration Of the filtrate—
(1 ) The counter current system contributes in diluting the urine
(2 ) Counter current system perform by Henle's loop and peritubular capillaries
(3) The flow of filtrate in the two limbs of Henle's loop is in same direction and thus form a counter Current (4) The proximity between the Henle's loop and vasa recta as well as the counter current in them help in maintaining an increasing osmolarity towards the inner medullary interstitium.
public interest litigation
rnDiscuss the causes and effects of global warming. What measures need to be taken to control global warming?
Dear experts
Can you help me out in choosing an investigatory project in biology class 12th ? kindly requesting u to rply
(1) OP & TP increase & its DPD increase
(2) OP & DPD increase & TP decrease
(3) TP & DPD decrease & OP increase
(4) OP & DPD decrease & TP increase
wat is the el nino effect? how does it affect biodiversity?
Q.9. The biochemical objective of PS I is to
(1) oxidise NADPH
(2) hydrolyse ATP
(3) phosphorylate ADP
(4) reduce
Explain Biochemical Oxygen Demand (BOD)???
Q. How many hormones from the below list interact with intracellular receptors and regulate chromosome function and gene expression. GH, Oxytocin, ADH, ANF, Aldosterone, Cortisol, Thyroxin, Epinephrine, Estradiol, GnRH, Progesterone
(1) Four (2) Five (3) Six (4) Seven
what do u mean by phaeophytization? plz giv a detailed info
Q.15. Which of the following is correct regarding structure of section of cilia and flagella:-
what is EL Nino effect
(1) 30
(2) 15
(3) 45
(4) 60
why are green algae not likely to be found in the deepest strata of the ocean?
(1) 12 atm (2) 72 atm (3) - 12 atm (4) 1.4 atm.
1. What is organic farming? How did Ramesh Chandra Dagar practice this?
What is polyblend? point out its raw material. How will it be advantageous?
Why ozone hole is devoloped in Antarctica?
(1) More than turgor pressure
(2) Less than turgor pressure
(3) Equal to turgor pressure
(4) Zero
What are the effects of ozone depletion???
short note on controlling vehicular air pollution : a case study of delhi
answer it fast plzz///
what are EcoSan toilets
Kyoto Protocol was endorsed at
1. Cop-6
2. Cop-4
3. Cop-3
4. Cop-5
Please answer with reason
Q.18. Select an incorrect statement w.r.t. metaphase
(1) Spindle fibres are attached to small disc shaped structures at the surface ofcentromeres called kinetochores
(2) The plane of alignment of the homologous pair of chromosomes at metaphase is referred to as the metaphasic plate
(3) Chromosome appears to be made up of two sister chromatids
(4) The size of chromosomes can be studied inthis phase
Spoilage of oil can be detected by which fatty acid?1) Oleic acid2) Linolenic acid3) Linoleic acid4) Erucic acid
Kindly answer sir/mam.identify unnecessary sources of noise pollution which can be reduced immediately without any financial loss to anybody?
short note on ozone depletion in the stratosphere?
Q.19. All are the essential stages that take place during meiosis, except
(1) Two successive divisions without any DNA replication occuring between them
(2) Formation of chiasmata and crossing over
(3) Segregation of homologous chromosomes
(4) Number of chromosomes in daughter cells after meiosis II is reduced to half but the amount of DNA remains the same
What measures, as an individual, you would take to reduce environmental pollution?
Q.112. Study the pedigree chart given below :-
What does it show -
(1) Inheritance of a recessive sex-linked disease like haemophilia
(2) Inheritance of a sex-linked inboron error of metabolism like phenyl ketoneuria.
(3) Inheritance of a condition like cystic fibrosis as an autosomal recessive trait
(4) The pedigree chart is Y-linked Inheritance
What is the objective of Environment Protection Act , 1986 ?
full form of JFM
(1) Mollusca - Normally oviparous and development through a trochophore or veliger larva
(2) Arthropoda- Body divided into head thorax and abdomen and respiration by tracheae
(3) Chordata - Notochord at some stage and separate anal and urinary opening to the outside
(4) Echinodermata - Pentamerous radial symmetry and mostly internal fertilization
what is BOD? (expansion)
42. If the given solution is of 25% concentration; then what cannot be presented for this
(1) OP (2) DPD (3) Solute potential (4) TP
defination of 1.Soil Erosion and 2.desertification.
Solve this:
Two genes A and B present on same chromosome show 30% recombination frequency, then what will be the percentage of gamete (aB) for the plant having genotype AaBb in cis arrangement :
(1) 40% (2)70%
(3) 20% (4) 15%
Describe the significance of ozone layar. What are the causes of its thinning?
working of electrostatic precipitator
Q.11. Photosynthesis is most active in
(1) Sun light
(2) Yellow light
(3) Red light
(4) Green light
deforestration decreases with enhanced awareness of forest conservation
Q.121. Which of the following process will be affected by the absence of enterokinase ?
(1) Starch Maltose
(2) Proteoses Dipeptide
(3) Maltose Glucose
(4) Lipid Fatty acid & glycerol
what is phaeophitisation?
Q.112. During phloem loading
(1) Loss of solute particles causes increase of water potential in the phloem
(2) Water returns to the xylem
(3) Sucrose enters in the sieve tube cell by passive transport
(4) Creates hypertonic cordition in the sieve tube ceil
how to prepare for AIPMT in these 40 days after boards? I am thorough with class 12 cbse pattern syllabus but what about class 11 syllabus and class 12 entrance syllabus?very confused plz?
Can u provide materials for a project on water pollution??????
What is the difference between reforestation and deforestation??? (atleast 3 points)
what do u mean by smokestacks and smelters?
what is meant by evencs??
Q.02. Which one is an odd pair?
(1) Femur - Humerus
(2) Tibia - Radius
(3) Axis - Atlas
(4) Tarsal - Carpals
incinerated means??
Why fertilizers and manure are added in the soil?
plz define me the exat definition of greenhouse effect nd global warming?
HOW WATER LOGGING AND SOIL SALINITY ARE RELATED, ALSO DEFINE BOTH OF THEM?
hey r u from rgukt
According to CPCB (Central pollution control board) particulate matter of size less than 2.5 micro meter (PM 2.5) are very harmful for human health.
'Evencs the only solution for treatment of e-wastes'. What does 'evencs' mean in this sentence?
What are the various constituents of domestic sewage ? Discuss the effect of sewage discharge on water bodies.
what is biomagnification?please explain .
describe the participation of people in the conservation of forests in india by taking bishnoi community incident and chipko movement as examples. add a note on joint forest management
Q.24. What will be the content of DNA in a somatic cell at if its meiotic products have 20 picogram of DNA?
(1) 40 Pg
(2) 20 Pg
(3) 80 Pg
(4) 160 Pg