Topics

Plants are killed in winter by frost


A) because of desiccation and mechanical damage to the tissues

B) because no photosynthesis takes place at such low temperature

C) because respiration ceases at such low temperature

D) because there is no transpiration

Correct Answer:
A) because of desiccation and mechanical damage to the tissues


Part of solved Biology questions and answers : >> General Science >> Biology




Comments
No comments available




Similar Questions
1). Number of chromosomes in Down's syndrome is
A). 46
B). 47
C). 48
D). 49
-- View Answer
2). Rain water helps to increase the ____ to some extent.
A). phosphorous contents
B). nitrogen contents
C). calcium contents
D). potash contents
-- View Answer
3). Mumps is a disease caused by
A). fungus
B). bacterium
C). virus
D). None of these
-- View Answer
4). Most abundant tissues of our body are
A). muscular
B). Skeletal Muscle
C). epithelial
D). nervous
-- View Answer
5). Most common disease of poultry in India is
A). fowl pox
B). tick fever
C). ranikhet
D). coryza
-- View Answer


6). Ptyalin is an enzyme produced in the
A). salivary glands
B). pituitary glands
C). thyroid glands
D). pancreas
-- View Answer
7). Nitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false?
A). By cyanobacteria
B). By electrical discharges in the atmosphere
C). By industrially synthesised fertilizer
D). By denitrification
-- View Answer
8). Pollen grains in plants are produced in
A). roots
B). leaves
C). flower
D). stem
-- View Answer
9). Pollination by wind is called
A). anemophily
B). hydrophily
C). zoophily
D). entomophily
-- View Answer
10). Mutation is
A). a factor responsible for plant growth
B). a change which affects the offspring of F2 generation only
C). a change that is inherited
D). a change which affects the parents
-- View Answer
Home About Us Terms and Conditions Privacy Policy Contact us