How does oxygen get into the flatworm?

How does oxygen get into the flatworm?

Flatworms get most of their oxygen through diffusion. Since they have no specialized circulatory system, their flatness gives them a greater surface area to absorb more oxygen.

Where does the oxygen pass through?

The oxygen you breathe in goes into your lungs and passes into your blood from there. It is then transported to all the cells in your body through your bloodstream. The lungs are located in the chest region, protected by the ribs in the rib cage.

What is the respiratory organ of flatworm?

Flatworms have no specialized respiratory system; gases simply diffuse across the body wall.

How does gas exchange occur in worms?

Earthworms do not have specialized respiratory organs like we do; instead, they take in oxygen and expel carbon dioxide directly through their skin. Oxygen diffuses through the earthworm’s body surface and diffuses inward to the network of capillaries lying just under the body surface.

Why do insects need a separate system to transport oxygen?

All insects are aerobic organisms — they must obtain oxygen (O2) from their environment in order to survive. The respiratory system is responsible for delivering sufficient oxygen to all cells of the body and for removing carbon dioxide (CO2) that is produced as a waste product of cellular respiration.

Where do tapeworms and fluke worms live?

Both flukes and tapeworms are parasites with vertebrate hosts, including human hosts. Flukes live in the host’s circulatory system or liver. Tapeworms live in the host’s digestive system.

What is the correct order of organs that air would pass through when you inhale through your nose?

When you inhale through your nose or mouth, air travels down the pharynx (back of the throat), passes through your larynx (voice box) and into your trachea (windpipe). Your trachea is divided into 2 air passages called bronchial tubes.

What keeps food out of the lungs?

When you breathe, air enters your mouth and moves into the pharynx. The air then goes down into your main airway (trachea) and into your lungs. A flap of tissue called the epiglottis sits over the top of the trachea. This flap blocks food and drink from going down into the trachea when you swallow.

What are the respiratory organ in cockroach and fish?

BREATHING IN FISH: Fish have a pair of gills. The breathe air, dissolved in water, through gills. BREATHING IN COCKROACH: Cockroach and other insects breathe through spiracles and tracheae. These hollow tubes are called trachea.

Do sponges have a respiratory system?

Respiratory organs are lacking in sponges; oxygen is supplied by a direct exchange between the tissues and the surrounding water. Excretion occurs through both the oscula and the surface of the sponge. Special amoebocytes disintegrate in the mesohyl, and their granules are expelled through the canals.

Why do worms not have lungs?

Earthworms need oxygen just like humans, but they don’t have lungs like we do. They have a special skin that allows them to “breathe” oxygen right through it. The same process that keeps oxygen coming in to the earthworm also keeps carbon dioxide going out, getting rid of this waste for the earthworm.

Do worms prefer wet or dry?

It is important that the bedding material be moist, but not soaking wet. Worms need moisture or their skin dries out, but too much moisture will cause them to drown. Red wigglers will survive in a temperature between 40℉ and 85℉, but prefer 70℉ − 75℉.