and Organ Systems in Animals
– Small tuft of soft feathers near the superior umbilicus of Quill feather
– The non-sclerotized, flexible membrane between the segments of arthropods,
and the joints of arthropod appendages.
– Walk or stand on two feet.
– The first region of the alimentary canal, between mouth and pharynx.
– Surrounding the alimentary canal; is attributed to excretion and
– A regional epidermal swelling, where gland cells secrete material to form the
– A coiled tube found in the inner ear, essential for hearing
– It is a bag like structure secreted by the clitellum. Eggs and sperms are
deposited into it. Fertilization and development occurs within the cocoon.
– The body cavity between the body wall and the alimentary canal.
– Respiration through skin
– Elytra (singular elytron) are the tough forewings of beetles and earwigs. The
elytra are not used in flight but are used to protect the more delicate hind
wings. The elytra are often coloured or decorated with pits and grooves
– The muscularized portion of the digestive system.
– Warm blooded and maintain a constant body temperature.
– The hypopharynx is a somewhat globular structure, located medially to the
mandibles and the maxillae. In many species it is membranous and associated
with salivary glands. It assists in swallowing the food.
– A fused mouthpart which forms the floor of the mouth of an insect. The labium
is the most complex of the cockroach mouthparts.
– Insect mandibles are a pair of appendages near the insect's mouth, and the
most anterior of the three pairs of oral appendages (the labrum is more
anterior, but is a single fused structure). Their function is typically to
grasp, crush, or cut the insect's food, or to defend against predators or
– In arthropods, the maxillae (singular maxilla) are paired structures present
on the head as mouthparts in members of the clade Mandibulata, used for tasting
and manipulating food.
– In frog a row of small and pointed maxillary teeth is found on the inner
region of the upper jaw.
– They are highly coiled excretory organs.
– The young birds’ that has not left the nest.
– A transparent membrane drawn over and protect the eye when frog is under
– Copulatory pad which is present only in male frog
– Oviparous animals are animals that lay eggs, with little or no other
embryonic development within the mother.
– Cold blooded organisms/ Body temperature fluctuates according to
– Sclerite is hard armor like structure for arthopods (even cockroaches) soft
body. Sclerites are really deposition of Calcium or cross linking of protein to
make the exoskeleton stronger.
– They are small, S- Shaped chitinous structures present in the pits of the
body wall of earthworms. They aid is locomotion. Some setae are modified into
Penial setae in the male genital opening and these help in copulation.
– A large thin walled, triangular chamber, which is present on the dorsal side
of the heart.
– The vibrating ear drum involved in hearing
– A median dorsal internal fold in the intestine of several types of animals,
including the earthworm,
–A vector is an organism that does not cause disease itself but which spreads
infection by conveying pathogens from one host to another.
– A minute finger-like process from intestinal lining of vertebrates
– The male frog has a pair of vocal sacs a little behind the mouth. They assist
in amplifying the croaking sounds of frog.