15294.Animals are motile because they have
Metabolism
Energy
Both muscle fibers and nerve fibers
Legs or wings
15297.Which one of the following phylum is characterized by absence of true coelom?
Annelida
Mollusca
Echinodermata
Nematoda
15298.Which one of the following pairs of animals comprises jawless fishes?
Guppies and hag fishes
Lampreys and eels
Mackerels and Rohu
Lampreys and hag fishes
15299.In a sponge the whole inner surface of the asconoid is lined by
Choanocytes
Porocytes
Pinacocytes
Amoebocytes
15300.Phylogenetic classification is based on
External similarity
Common evolution
Habit and habitat
Utilitarian system
15301.Tapeworm does not possess digestive system as it
Doesnt require food
Obtain food through general surface
Does not require solid food
Lives in intestine
15302.Which one of the following kinds of animals is triploblastic?
Corals
Flat worms
Sponges
Ctenophores
15304.Which one of the following is not a member of the group Eutheria?
Mole
Squirrel
Pangolin
Platypus
15305.The ______ are undifferentiated embryonic cells and produce the sex cells as well.
Thesocytes
Myocytes
Archaeocytes
Chromocytes
15308.Which one of the following groups of animals is bilaterally symmetrical and triploblastic?
Sponges
Coelenterates (Cnidarians)
Aschelminthes (round worms)
Ctenophores
15309.Why do camels have a long neck?
more vertebrae
vertebral plates between adjoining vertebrae
increase in size of each vertebra
cartilage pads between vertebra
15311.Which of the following types of fish is eaten usually by humans?
Jawless
Bony
Cartilaginous
all of the above
15312.Animals, floating and drifting on the surface of water are ______.
Benthos
Pelagic
Plankton
Neritic