Which of the following statements are true/false?
I. In torpedo, the electric organs are capable of generating strong electric shock.
II. Claspers are found in cartilaginous fishes.
III. Amphibian skin is moist and has thick scales.
IV. Birds are poikilothermous animals.
V. The most unique mammalian characteristic is the presence of milk producing mammanry glands by. which the young ones are nourished.

Which of the following statements are true// false A. In Torpedo the electric organs are capable of generating strong strong electric shock to paralyze the prey B. Bony fishes use pectoral, pelvic, dorsal, anal and caudal fins in swimming C. Amphibians skin is moist and has thick scales D. Birds are poikilothermous animals E. The most unique mammalian characteristic is the presence of milk producing mammary glands by which the young ones are nourished

Which of the following statements are true// false A. In Torpedo the electric organs are capable of generating strong strong electric shock to paralyze the prey B. Bony fishes use pectoral, pelvic, dorsal, anal and caudal fins in swimming C. Amphibians skin is moist and has thick scales D. Birds are poikilothermous animals E. The most unique mammalian characteristic is the presence of milk producing mammary glands by which the young ones are nourished

Which of the following statements are true// false A. In Torpedo the electric organs are capable of generating strong strong electric shock to paralyze the prey B. Bony fishes use pectoral, pelvic, dorsal, anal and caudal fins in swimming C. Amphibians skin is moist and has thick scales D. Birds are poikilothermous animals E. The most unique mammalian characteristic is the presence of milk producing mammary glands by which the young ones are nourished

Which of the following statements are true/false? (a) In Torpedo the electric organs are capable of generating strong electric shock to paralyze the prey (b) Bony fishes use pectoral, pelvic, dorsal, anal and caudal fins in swimming ( c) Amphibian skin is moist and has thick scales (d) Birds are poikilothermous animals (e) The most unique mammalian characteristic is the presence of milk producing mamary glands by which the yound ones are nourished

Which of the following statements is/are correct or incorrect regarding Class Amphibia? (i) Body is divisible into head and trunk. Tail is present in some amphibians. (ii) Show respiration by gills, lungs and through skin. (iii) Has scales in all its members. (iv) Can lead dual life (aquatic and terrestrial) (v) Has eyelids.

Which of the following statements is/are correct or incorrect regarding Class Amphibia? (i) Body is divisible into head and trunk. Tail is present in some amphibians. (ii) Show respiration by gills, lungs and through skin. (iii) Has scales in all its members. (iv) Can lead dual life (aquatic and terrestrial) (v) Has eyelids.

Which of the following statements is/are correct or incorrect regarding Class Amphibia? (i) Body is divisible into head and trunk. Tail is present in some amphibians. (ii) Show respiration by gills, lungs and through skin. (iii) Has scales in all its members. (iv) Can lead dual life (aquatic and terrestrial) (v) Has eyelids.

Which of the following statement/s regarding ecological pyramid is/are wrong? I. In most ecosystem, all the pyramids, of number, of energy and biomass are upright. II. Each trophic level has a certain mass of living material at a particular time called as the standing crop. III. The pyramid of biomass in sea is generally upright because the biomass of fishes far lower that of phytoplankton. IV. Pyramid of energy is always upright, can never be inverted. V. Energy at a lower trophic level is always less than at a higher level.

Which of the following statements are true (T) and which are false (F)? (i) Sum of the three sides of a triangle is less than the sum of its three altitudes. (ii) Sum of any two sides of a triangle is greater than twice the median drawn to the third side. (iii) Sum of any two sides of a triangle is greater than the third side. (iv) Difference of any two sides of a triangle is equal to the third side. (v) If two angles of a triangle are unequal, then the greater angle has the larger side opposite to it. (vi) Of all the line segments that can be drawn from a point to a line not containing it, the perpendicular line segment is the shortest one.