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which of these elements in plants is required in small quantities only
Which of these is not a function of the mammalian skin/
Which of these is not a part of the feather of a bird?
Which of these is not associated with the movement of the toad, reptile or bird?
Which of these is not associated with tadpole stages of toad or frog
The feature that distinguish the toad or frog from the fish is the absence of
Rhizopus (or mucor)obtain its food from dead organic matter extracellularly. It is said to be
Which of these is not true of the insect? The possession of
The neck region of the tape worm, (taenia) is responsible for the
At fertilization
A potometer with a leafy shoot weighed 18.9g initially and weighed 17.9g after one hour. From this it follow that
The study of organism and the environment of an abandoned farmland is the ecology of?
The hormone which tones up the muscles of a person in time of danger is from the
In which of the following groups of organisms do all the members have asexual method of reproduction?
In the life history of schistosoma (Bilharzia), one of the following is intermediate host
Nitrifying bacteria keep the soil fertile by
Which of the following is a characteristic of animal cell?
The following events take place during conjugation in spirogyra 1. The protoplasm of each of the conjugating cell separate from the cell wall to form a Gamete; the gamete of one filament passes through the conjugation tube to meet the gamete of the other filament 2. The zygote soon become surrounded by thick brown wall to become zygospore which burst after a short rest and germinate to produce a new filament 3. The nuclei of the gametes fuse to form a zygote 4. The protuberance meet and where they touch the cell-wall disappear so that a conjugation tube joining the two cell is formed 5. protuberance appear on the wall of the cell of two filament of spirogyra lying side by side opposite one another. Now what is the correct sequence in which the above sequence occur?
the function of lenticels is
when protein are broken down they provide