15313.Which of the following statements is true about Roundworms?
Roundworms may reach 5 cm in length.
They are non-segmented
They are generally dark-colored.
They occur only in the soil.
15314.Which of the following statement is correct?
Platypus lays eggs
Camels have biconcave RBCs
Whales respire by gills
Bats do not fly
15315.Which of the following statements is true?
Invertebrates possess a tubular nerve cord
Non chordates have a vertebral column
All chordates are vertebrates
All vertebrates are chordates
15316.Which one of the following groups of three animals each is correctly matched with their one characteristic morphological feature?
| Animals | Morphological feature |
|---|---|
| (1) Cockroach, Locust Taenia | Metameric segmentation |
| (2) Liver fluke, Sea anemone, Sea cucumber | Bilateral symmetry |
| (3) Centipede, Prawn, Sea urchin | Jointed appendages |
| (4) Scorpion, Spider, Cockroach | Ventral solid central nervous system |
Option (1)
Option (2)
Option (3)
Option (4)
15317.Which one of the following groups of animals is correctly matched with its one characteristic feature without even a single exception?
Mammalia : give birth to young ones
Reptilia : possess 3-chambered heart with one incompletely divided ventricle
Chordata : possess a mouth provided with an upper and a lower jaw
Chondrichthyes : possess cartilaginous endoskeleton
15318.A common feature of tracheae of Cockroach and mammal is that both have
Ciliated inner lining
Non-collapsible walls
Paired nature
Origin from head
15319.Which of the followings is a diploblastic, radially symmetrical animal?
Hydra
Earthworm
Roundworm
Liver fluke
15323.In a sponge which of the followings are responsible for maintaining the current of water?
Pinacocytes
Porocytes
Choanocytes
Amoebocytes
15324.Which of the following reptiles has four chambered heart?
Turtle
Sphenodon
King cobra
Crocodile
15326.Cold blooded animals are
which have cold blood
who feel cold a lot
who can regulate their temperature
who can not regulate their temperature
15328.Which animal of the followings belongs to class crustacea?
Cockroach
Cyclops
Grasshopper
Mosquito
15330.Common character of all vertebrates without exception is
Body divided into head, trunk and tail
Two pairs of limbs
Exoskeleton
Presence of skull
15331.What will you look for to identify the sex of the following?
Male shark - Claspers borne on pelvic fins
Female Ascaris - Sharply curved posterior end
Male frog - A copulatory pad on the first digit of the hind limb
Female cockroach - Anal cerci