Indusium is found in
algae
ferns
moss
Cycas
B.
ferns
Indusium is a membranous structure that covers a group of sporangia below it. It is further differentiated into two parts: Hood (kidney shaped dorsal plate) and short stalk. The sporangia attached with a placenta (swollen base) form group called sorus.
Sorus is covered by a membranous structure not found in group of plants such as algae, bryophyta etc, except, ferns of Pteridophyta.
The function of pineal body is to
lighten the skin colours
control sexual behaviour
regulates the period of puberty
All of the above
Contractile vacuole in protozoan Amoeba is meant for
respiration
excretion
locomotion
osmoregulation
During inspiration, the diaphragm
expands
shows no change
contracts and flattens
relaxes to become dome- shaped
Which one is component of Ornithine cycle?
Ornithine, citrulline and alanine
Ornithine, citrulline and arginine
Amino acid are not used
Ornithine, citrulline and fumaric acid
Which of the following is important for muscle contraction and nerve impulse transmission?
Ca2+ ions
Mg2+ ions
Both (a) and (b)
Fe2+ ions
The leucocytes contain which of the following in large quantity?
Basophils
Neutrophils
Eosinophils
Monocytes