Related Questions

Which structure is common to plant and animal cells?
A Centriole
B Chloroplast
C Central Vacuole
D Mitochondria
Which one of the following is not found in animal cells?
A Free ribosomes
B Mitochondria
C Nucleolus
D Cell wall
A zookeeper counted the heads of animal and found it to be 80. When he counted the legs of animals, he found the number to be 260. If the zoo had either Pigeons or horses, how many horses were there in the zoo ?
A 30
B 40
C 50
D 60
Supplies, plant maintenance, plant rent, plant insurance and cleaning labour comes under which type of costs?
A labour costs
B factory overhead costs
C finished costs
D manufacturing costs
In a power plant if the maximum demand on the plant is equal to the plant capacity, then
A Plant reserve capacity will be zero
B Diversity factor will be unity
C Load factor will be unity
D Load factor will be nearly 60%
P,Q,R and S are four men , p is the oldest but not the poorest. R is the richest but not the oldest. Q is older than S but not than P or R, P is richer than Q but not than S .The four men can be ordered descending in respectof age and richness respectively, as
A PQRS ,RPSQ
B PRQS, RSPQ
C PRQS, RSQP
D PRSQ, RSPQ
Which cells give rise to various organs of the plant and keep the plant growing?
A Permanent
B Dermal
C Meristematic
D Mature
Which plant cells give support to plant body?
A Phloem cells
B Xylem cells
C Sclerenchymatous cells
D Parenchyma cells
কোনো উদ্ভিদ বা প্রাণীর মৃত্যুকাল নির্ণয়ের জন্য নিম্নের কোন তেজস্ক্রিয় আইসোটোপ ব্যবহার করা হয়? (Which one of the following radioactive isotopes is used to determine how long before a plant or animal died?)
A C12
B C14
C U235
D I131
the wzone in the upper layers of Earth's atmosphere is beneficial, ____ animal and plant life from dangerous ultraviolet readittion
A protecting
B withdrawing
C thwarting
D displacing

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