What is the main excretory organs of cockroach?
Malpighian tubules are the excretory system of cockroaches.
Is cockroach a platyhelminthes?
Platyhelminthes has flame cells as organ of excretion. It is a thick-walled sac which is much folded within which helps in excretion. So the correct answer is “cockroach”.
Is cockroach a Protonephridia?
Prawn possesses green glands or antennal glands as their excretory structures. 2. Cockroach possesses Malpighian tubules as their excretory structures….
| Excretory Structure/Organ | Animals |
|---|---|
| a. Protonephridia | 1.Prawn |
| b. Nephridia | 2. Cockroach |
| c. Malpighian tubules | 3. Earthworm |
| d. Green gland or antennal gland | 4. Flatworms |
Do flatworms breathe?
Flatworms are small, literally flat worms, which ‘breathe’ through diffusion across the outer membrane. The flat shape of these organisms increases the surface area for diffusion, ensuring that each cell within the body is close to the outer membrane surface and has access to oxygen.
What is the locomotion of cockroach?
Cockroach is a swift runner as well as a flier. The six legs are helpful in walking or running, when the cockroach is at rest, the coxae of the legs lie back against the body and the first legs are directed forward, the hind legs are stretched out posteriorly and the middle legs take whatever position is convenient.
How many types of locomotion does a cockroach have?
Cockroaches have a hard outer skeleton. They undergo two types of locomotion – walking and flying. A cockroach has 3 pairs of legs which help it to walk on the ground. The two pairs of wings attached to the breast muscles help the cockroach to fly.
What is the exoskeleton made up of cockroach?
The exoskeleton of a cockroach is made up of chitin. The skeleton of cockroach is covered by thick hard chitinous cuticles secreted by the epidermis. So, the correct answer is “chitin”.
What are two Endoskeletons examples?
Some examples of endoskeleton are cartilage, bone, etc. The hard part present outside the body which protects the soft tissues and muscles is called the exoskeleton. It is developed from ectoderm and is mostly called a non-living structure. Some examples of the exoskeleton are hair, feather, scales, horns, etc.
What is another name for exoskeleton?
What is another word for exoskeleton?
| casing | case |
|---|---|
| shell | cover |
| covering | jacket |
| sheath | capsule |
| housing | integument |
Is hair a exoskeleton?
The exoskeleton consists of hard parts present on the surface of the body. Scales, feathers, hair, claws, nails, hoofs and horns are examples of exoskeletal elements in the vertebrates. These structures develop from the epidermis of the skin. They are composed of a nonliving, protein material called keratin or horn.
Is the hair shaft Dead or Alive?
Tiny blood vessels at the base of every follicle feed the hair root to keep it growing. But once the hair is at the skin’s surface, the cells within the strand of hair aren’t alive anymore. The hair you see on every part of your body contains dead cells.
Do humans have exoskeleton?
The robotic exoskeleton industry is still young but expanding slowly as technology improves. An exoskeleton is, as the word suggests, a skeleton that exists outside the body. Humans, of course, have endoskeletons. …
Are exo suits real?
The U.S. Marines are about to start receiving real robotic exoskeletons for testing, but these exo-suits aren’t headed into combat any time soon. Despite the TALOS program’s progress in a number of areas, it was ultimately deemed infeasible for combat.
What animal has an exoskeleton?
All arthropods (such as insects, spiders and crustaceans) and many other invertebrate animals (such as shelled mollusks) have exoskeletons. Lobsters, for example, have tough outer shell systems which provide rigidity and shape to their bodies.
What is a crabs exoskeleton?
The crab exoskeleton is a natural composite consisting of highly mineralized chitin–protein fibers arranged in a twisted plywood or Bouligand pattern. There is a high density of pore canal tubules in the direction normal to the surface.