One animal that does not perform locomotion is
Sycon
Nereis
Sepia
Euglena
A.
Sycon
Sycon (Scypha) is a sponge and does not perform locomotion. It is a genus of calcareous sponges belonging to family-Scyettidae, Class-Calcaronea and phylum-Porifera. These sponges are small, growing upto 5 cm in total length, and are tube shaped and often white to cream in colour.
Which of the following is important for muscle contraction and nerve impulse transmission?
Ca2+ ions
Mg2+ ions
Both (a) and (b)
Fe2+ ions
Sigmoid notch is formed by
cavity formed by humerus
cavity formed by radius-ulna
cavity formed by tibia-fibula
cavity formed by femur
An acromian process is characteristically found in the
pelvic girdle of mammals
skull of frog
pectoral girdle of mammals
sperm of mammals
Which of the following is a transparent tissue?
Tendon
Fibrous cartilage
Hyaline cartilage
All of these