A. Gain Water
B. Lose Water
C. Exchange gas
D. None of These
Different species of plants and animals living in the same habitat is called ___________?
A. Population
B. Community
C. Biome
D. Habitat
Human blood is an example of__________?
A. Organelle
B. Tissues
C. Organic compound
D. Inorganic compounds
_________ give rise to macrophages, which destroy larger particles by phagocytosis.
A. Nautrophils
B. Basophila
C. Monocyte
D. Lymphocyte
Oil body is found in the cells of___________?
A. Diatoms
B. Slime moulds
C. Chlorophycean forms
D. None of the these
Unlike other algae, diatoms do not readily decay due to___________?
A. Nonliving cells
B. Siliceous wall
C. Mucilaginous wall
D. Water proof cell
Among the followings which is the most longest supportive cell?
A. Tracheids
B. Sclereids
C. Trachea
D. Collenchyma cells