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It isnt. There is no gas exchange in the trachea this takes place at the alveoli.
earthworms.
presence of many capillaries
they are connected to a densed network of blood vessels which keeps the oxygen moist
Leaf cells are adapted to carry out photosynthesis efficiently. They have a high surface area to volume ratio, allowing for more light absorption and gas exchange. Specialized structures like chloroplasts contain chlorophyll for photosynthesis, and stomata regulate gas exchange.
It's one of these-lack of blood vesselspresence of villipresence of many capillarieslack of cell membranes
If you are looking for a single organelle, then I would say the mitochondria. They are the site of respiration and are adapted for efficient gas exchange.
An animal's type of gas exchange system is influenced by its environment. Animals in aquatic environments may have gills for efficient gas exchange with water, while terrestrial animals often have lungs to extract oxygen from air. Some animals like insects have a tracheal system for gas exchange that connects to almost every cell in their body. The type of gas exchange system an animal has is adapted to meet the specific oxygen requirements and environmental conditions of its habitat.
The outermost layer of a flatworm is composed of a syncytial epidermis. This layer is made up of a single layer of cells fused together, providing protection and facilitating nutrient exchange.
flatworm
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