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12101.

Question : Segmentally arranged coiled tubules of earthworm function as

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RESPIRATORY orgams 
Excretory ORGANS 
locomotory organs 
SENSORY organs 

Answer :B
12102.

Question : Segment of earthworm which donot contain any apertures

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segment 2 
segment 1 and prostomium 
pygidium 
clitellum 

ANSWER :A
12103.

Question : Seeds of some plants germinate immediately after shedding from the plants while in other plants they require a period of rest before germination. The later phenomena is called as dormancy. Give the reasons for seed dormancy and some methods to break it.

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Solution :Dormant seeds do not germinate for definite time period . That is changed for some days or months. This definite time is called Dormancy period.
Reasons for Dormancy :
(a) In many plants dormancy SEED coat is impermeable of wate. Eg, Chenopodium, Trigonella, Meliotus are impermeable for Oxygen e.g. Brassica Alba, Pyrus Malus, Apple, Sinapis Arvensis or Chemicals. E.g. impermeable for Xanthium.
(b) In many plants seed coat is very hard that is the reason for dormancy that provides mechanical inhibition for embryo development e.g. Capsela, Lapidium.
(c) Some seeds produce special types of chemicals like Abscisic acid (ABA) and phenolic acid, comerin, small chained fatty acids etc. which obstruct germination. This inhibitors can be present in fruits also e.g. Ferulic acid in juice of TOMATO fruit, in endosperm (e.g. Xanthium) e.g. Iris or seed coat e.g. Cucurbita.
(d) Fallen seeds like WHEAT, Barley, oat etc need a period of rest to be mature and for bearing ability to germinate. During this rest period seeds produce required hormones for germination.
Methods to remove Dormancy :
(1) Treatment of either heat or cold to make growth of inhabitors inactive.
(2) To weaken the hard and impermeable seed coat by mechanical process.
(3) Micro ORGANISMS present in soil DECOMPOSE hard seed coat and weaken them.
(4) Removes inhabitors by water of rain or irrigation.
(5) To let the embryo be mature etc. Methods can be inspired to inspire germination of seed artificially.
12104.

Question : Seeds develop from which part of the flower?

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SOLUTION :OVULES.
12105.

Question : Seeds are enclosed by fruit wall or pericarp.

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Solution :In angiosperms OVULES form seeds and ovary WALL is CONVERTED into fruit wall.
12106.

Question : Seedless fruits can be obtained by spraying(a) gibberellins(b) Auxins(c) cytokinins(d) ethylene

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gibberellins
Auxins
cytokinins
ethylene

12107.

Question : Seed of which plant with long viability was discovered in archeological excavation at king Herod's place near the Dead Sea ?

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PHOENIX dactylifera
FICUS elastica
Lupinus arctius
Citrus Sinesis

Answer :1
12108.

Question : Seed increase in its volume by the adsorption of water through

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OSMOSIS
plasmolysis
imbibition
diffusion

Answer :D
12109.

Question : Seed habit originated in some

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Bryophytes
PTERIDOPHYTES
Gymnosperms
Angiosperms

Solution :SEED HABIT ORIGINATED in some pteridophytes.
12110.

Question : Seed formation without fertilization in flowering plants involves the process of

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SPORULATION
BUDDING
SOMATIC hybridization
APOMIXIS

SOLUTION :Apomixis
12111.

Question :Seed formation without fertilisation in flowering plants involves the process of

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SOMATIC HYBRIDISATION
APOMIXIS
sporulation
budding

ANSWER :B
12112.

Question : Seed dormancy allows the plants to

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overcome unfavourable CLIMATIC CONDITIONS
DEVELOP healthy seeds
reduce viability
prevent deterioration of seeds

Solution :prevent deterioration of seeds
12113.

Question : Seed coat is not thin, membranous in

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GROUNDNUT
GRAM
maize
coconut

Answer :C
12114.

Question : See the folowing diagram after two weeks the apperance of the shoot would be

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SOLUTION :NA
12115.

Question : Seed bearing plants include:

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PTERIDOPHYTES and GYMNOSPERMS
BRYOPHYTES and pteridophytes
gymnosperms and ANGIOSPERMS
bryophytes and gymnosperms

12116.

Question : See the following figures Figure A and B indicate glands while Figure C indicates specific type of tussues, Identify A, B, and C

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`{:("A",B,C),("Unicellular GLAND","Goblet gland","PSEUDOSTRATIFIED epithelium"):}`
`{:("A",B,C),("MULTICELLULAR gland","Unicellular gland","Pseudostratified epithelium"):}`
`{:("A",B,C),("Unicellular gland","Multicellular gland","Pseudostratified epithelium"):}`
`{:("A",B,C),("Unicellular gland","Multicellular gland","Compound epithelium"):}`

Answer :D
12117.

Question : See the figure chose the correct option from table

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ANSWER :B
12118.

Question : Secretory tissues that secrete proteolytic enzymes are found in

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NEPENTHES
PLUMBAGO
Urtica
POLYGONUM

ANSWER :A
12119.

Question : Secretion of which of the following is under control of neurosecretory nerve cells?

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Pineal
Adrenal cortex
ANTERIOR pitutary
Thymus

SOLUTION :The neurosecretory cells of the hypothalamus SECRETE releasingfactors (neurohormones) that regulate the SECRETION of hormones from the anterior pituitary.
12120.

Question : Secretionof progesterone by corpus luteum is initiated by

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testosterone
thyroxine
MSH
LH.

Solution :Luteinising hormone (LH) secreted by the anteriorlobe of pituitary GLAND stimulates CORPUS LUTEUM of the OVARY to secrete progesterone.
12121.

Question : Secretion of which gland regulates oxidation and ATP formation.

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Somatotropic HORMONE
Pituitary gland
THYROID
Adrenaline

ANSWER :C
12122.

Question : Secretion of saliva is only under nervous control.

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ANSWER :1
12123.

Question : Secretion of milk is stimulated by ________

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ANSWER :PROLACTIN ; OXYTOCIN
12124.

Question : Secretion of gastric juice is inhibited by gastrin/enterogasterone hormone.

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SOLUTION :ENTEROGASTERONE
12125.

Question : Secretion of pancreatic juice is stimulated by

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GASTRIN
enterogastron
secretin
ENTEROKINASE

SOLUTION :enterokinase
12126.

Question : Secretion of gastric juice is controlled by .......... .

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Enterogesterone
CHOLECYSTOKININ
GASTRIN
pepsin

Solution :N/A
12127.

Question : Secretin stimulates production of ……….. .

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Saliva
GASTRIC JUICE
BILE
PANCREATIC juice

Solution :N/A
12128.

Question : Secretin hormone is produced by ………… .

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STOMACH
LIVER
INTESTINE
PANCREAS

SOLUTION :N/A
12129.

Question : Secretin is produced by

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duodenum
intestine
stomach
pancreas

12130.

Question : Secretin and cholecystokinin are digestive hormones. They are secreted in

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oesophagus
ileum
pancreas
duodenum

Answer :D
12131.

Question : Secretin and cholecystokinin are digestive hormones. These are secreted by(a) oesophagus(b) ileum(c) duodenum(d) pyloric stomach

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oesophagus
ileum
DUODENUM
PYLORIC stomach

Solution :duodenum
12132.

Question : Secretin

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Stimulates enzyme secretion by PANCREAS, inhibits ACID secretion in stomach,stimulates gall bladder
Stimulates bicarbonate secretion by pancreas, inhibits acid secretion in stomach, stimulates bicarbonate secretion by liver
Stimulates acid secretion in stomach. Potentiates action of CCK, inhibits intestinal movement
Stimulates gall bladder, inhibits acid secretion in stomach, stimulates BICARBONATES secretion by pancreas

ANSWER :d
12133.

Question : Secretin and Cholecystokinin are digestive hormone. They are secreted in ...........

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PYLORIC STOMACH
Duodenum
Ileum
OESOPHAGUS

SOLUTION :N/A
12134.

Question : Secondary phloem remains functional generally

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for ONE year
for LESS than one year
for many year
as LONG as PLANT is alive

Answer :D
12135.

Question : Secondary growth of the plant is characterized by

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INCREASE in LINEAR growth
increase in the girth
activity of vascular CAMBIUM and CORK cambium
Both (B ) and (C ) 

Answer :B
12136.

Question : Secondary growth is usually absent in

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DICOT ROOT and Dicot STEM
MONOCOT root and Monocot stem
Dicot root and Monocot stem
Monocot root and Dicot stem

Answer :B
12137.

Question : Secondary growth in Dicot root occurs with the help of

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Lateral MERISTEM, PRIMARY meristem, SECONDARY meristem
Lateral meristem, only secondary meristem
Intercalary meristem, only primary meristem
APICAL, lateral and intercalary meristems

Answer :B
12138.

Question : Secondarygrowthis absent in…………..

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Gymnosperms
Angiosperms
Dicots
MONOCOTS

Solution :Monocots
12139.

Question : Secondary growth involves activity of the....... meristem.

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SOLUTION :LATERAL
12140.

Question : Secondary growth does not occur in monocot stems because(a) Scattered(b) Open(c) Close(d) Radial

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Solution :Monocotyledonous STEMS NORMALLY do not have SECONDARY GROWTH DUE to the absence of vascularcambium.
12141.

Question : Secondary growth does not occur in monocot/dicot stem.

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ANSWER :MONOCOT
12142.

Question : Secondary growth commonly occurs in

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Gymnosperms and Angiosperms
Dicot PLANS and Monocot PLANTS
Gymnosperms and Dicot plants
PTERIDOPHYTES and Monocot plants

Answer :C
12143.

Question : What is meant by secondary growth ? Explain formation of cambial ring.

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Solution :In most of the dicot plants, after COMPLETION of primary GROWTH DUE to formation of secondary tissue, the INCREASE in girth is called secondary growth.
12144.

Question : Second mollar, two in number ………….. .

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INTERCELLULAR
INTRACELLULAR
EXTRACELLULAR
Both A and B

SOLUTION :N/A
12145.

Question : Sebaceous glands :

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help keep the skin SOFT
are involved in body temperature regulation
are RESPONSIBLE for BREAKING out in a "cold SWEAT"
are found in the EXTERNAL auditory meatus

Solution :help keep the skin soft
12146.

Question : Sea weeds belongs to

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GREEN ALGAE
Red algae
Brown algae
BGA

Solution :SEA weeds BELONGS to brown algae.
12147.

Question : Sea Weeds are a main source of

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Chlorine
Fluorine
Bromine
Iodine

ANSWER :D
12148.

Question : Sea weeds are important source of

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chlorine
potassium
nitrogen
PHOSPHORUS

12149.

Question : Sea urchin and sea cucumber belong to Phylum .............

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ANSWER :ECHINODERMATA
12150.

Question : Sea cucumbers belong to class …………………. .

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Echinoidea
Holothuroidea
Ophiuroidea
Asteroidean

SOLUTION :Holothuroidea