Earthworms (annelids
What are the excretory organs in insects and earthworms?
Malpighian tubules constitute the excretory organs of cockroach and other insects.
Nephridia
are the most generally found excretory organs in earthworms. Flame cells are the platyhelminth excretory organs. A gizzard is present in certain insects' food tube, helping to break food particles.
What are excretory organ name them?
Organs of excretion include
the skin , liver , large intestine , lungs , and kidneys
(see Figure 16.2. 2). Together, these organs make up the excretory system . They all excrete wastes, but they don't work together in the same way that organs do in most other body systems.
Which is the simplest excretory organ?
A flame cell is a specialized excretory cell found in the simplest freshwater invertebrates, including flatworms, rotifers and nemerteans; these are the simplest animals to have a dedicated excretory system. Flame cells function like a kidney, removing waste materials.
What organs are in an earthworms excretory system?
- Septal nephridia (Enteronephric nephridia): Septal nephridia are the largest nephridia. …
- Integumentary nephridia: These are smallest nephridia. …
- Pharyngeal nephridia: Pharyngeal nephridia (3 pairs) occurs as paired tufts on either side of pharynx and oesophagus.
How many hearts do earthworms have?
Heartbeats: Worms don't have just one heart. They have
FIVE
! But their hearts and circulatory system aren't as complicated as ours — maybe because their blood doesn't have to go to so many body parts. Moving around: Worms have two kinds of muscles beneath their skin.
Do worms have a gender?
Earthworms are
hermaphrodites
, meaning an individual worm has both male and female reproductive organs.
What are the excretory organs in birds?
The excretory system in the domestic fowl consists of
the two kidneys
, each with a ureter that carries the urine produced by the kidneys to the cloaca where it leaves the body.
What is the excretory organ of Mollusca?
Complete answer: The excretory organs of Mollusca are
metanephridia
. A molluscan body is found to be unsegmented. However, they do have a distinct head, a muscular foot, and a visceral hump.
What is the main excretory organs of cockroach?
Malpighian tubules
are the excretory system of cockroaches.
What are the excretory organs in humans?
The organs of excretion in humans include
the skin, lungs and kidneys
.
What are the parts of human excretory system?
- Kidneys.
- Ureters.
- bladder.
- urethra.
How do kidneys clean the blood?
The kidneys receive a high blood flow and this is filtered by very specialised blood vessels. The fluid that is filtered is then adjusted by a
complex series of urine-disposing tubes called tubules
.
Are human kidneys 1 million nephridia?
Human kidney has about 1 million
nephridia
. Tracheids and vessels are non -living conducting tissues.
What is Protonephridia?
A protonephridium (proto = “first”) is
a network of dead-end tubules lacking internal openings
, found in the phyla Platyhelminthes, Nemertea, Rotifera and Chordata (lancelets). … Protonephridia are generally found in basal organisms such as flatworms.
What is proboscis gland?
A proboscis refers to
an elongated or projecting appendage in the head region of certain animals
. … Their proboscis, therefore, serves as a feeding or a sucking organ. In certain vertebrates, the proboscis is not attached to the mouth but may be formed as a fusion of the nose and the upper lip (as in snouts).
