76
The theory of biogenetic law explains 'ontogeny repeats phyllogeny\ It was propounded by
1
Weissman
2
Lamarck
3
Haeckel
4
Harvey
77
Derivative of sweat gland is
1
Moll's gland
2
scent gland
3
sebaceous gland
4
mammary gland
Answer: Moll's gland , mammary gland
78
The basis of karyotaxonomy is
1
number of nucleoli
2
sedimentation rate of ribosomes
3
chromosome banding
4
chromosome number
Answer: chromosome number
79
The type of fossil where hard parts like bone or trunks of trees are preserved is known as
1
petrifaction
2
mould
3
compression
4
pseudofossil
80
Diploblastic acoelomate condition is found in
1
Planaria
2
Rotifer
3
Ascaris
4
sea anemone
81
Drones in honeybee colony are
1
fertile males
2
fertile females
3
sterile males
4
sterile females
View Answer
82
Burachapari Wildlife Sanctuary is located in
1
Jorhat district
2
Dibrugarh district
3
Lakhimpur district
4
Sonitpur district
View Answer
Answer: Sonitpur district
83
The silk thread obtained from silk moth is the product of
1
salivary gland of larvae
2
cuticle of adult
3
cuticle of larva
4
salivary gland of the adult
View Answer
Answer: salivary gland of larvae
84
Select the one with wrong class
1
Sea star : Asteroidea
2
Sea urchin : Echinoidea
3
Sea cake : Holothuroidea
4
Brittle star : Ophiuroidea
View Answer
Answer: Sea cake : Holothuroidea
85
Lac is produced as
1
faeces of the lac insect
2
secretion from the body
3
excretion from the body
4
excess food oozing out of the body
View Answer
Answer: secretion from the body
86
The functional adult kidney of reptile is
1
pronephros
2
metanephros
3
mesonephros
4
50% each of mesonephros and metanephros
View Answer
87
Obturator foramen in rabbit is present in
1
skull
2
vertebrum
3
pelvic girdle
4
femur
View Answer
88
Which one of the following is a biologically incompatible marriage?
1
Rh-positive man and Rh-negative woman
2
Rh-negative man and Rh-negative woman
3
Rh-positive man and Rh-positive woman
4
Rh-negative man and Rh-positive woman
View Answer
Answer: Rh-positive man and Rh-negative woman
89
What was the principal missing element in the Darwin's concept of evolution?
1
Knowledge of heredity and variation
2
Concept of missing links
3
Fossil record
4
Concrete evidence for the operation of natural selection
View Answer
Answer: Knowledge of heredity and variation
90
Corals are
1
sedentary sponges
2
sedentary cridarians
3
sedentary ascidians
4
free living ctenophorans
View Answer
Answer: sedentary cridarians
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