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1 kwi 1998 · Among the adaptations of pelagic crustaceans to these conditions are: (1) enhanced ventilatory abilities, (2) enhanced percentage removal of O 2 from the ventilatory stream, (3) large gill surface areas, (4) short diffusion distances from the water to the blood, and (5) hemocyanin respiratory proteins with a very high affinity for O 2, high coop...
8 cze 2023 · • Eukaryotes (i.e. organisms that have cells with a nucleus) evolved in an Ocean with oxygenated surface water, anoxic deep waters and atmospheric oxygen levels likely 1-10% of present levels;
23 kwi 2024 · For coastal creatures like cuttlefish, sea stars or crabs living in seagrass, kelp forests or mangroves, daily life is an oxygen rollercoaster. During the day, photosynthesis by algae and...
16 lut 2019 · Marine animals must also be able to absorb dissolved gases like oxygen from the water needed to release the energy from food. Simple animals, such as anemones or worms, absorb the gases through their skin. Mobile animals use gills, or even lungs to absorb oxygen from the water and air.
1 sty 2020 · The O 2 receptors are responsible for triggering the ventilatory mechanisms by regulating the water flow over the gills and the reflex on heart rate, cardiac volume, and blood pressure, changing the blood flow through the lamellae; the internal receptors appear to be involved only in the ventilatory reflexes (Milsom, 1993).
The water temperature affects the organisms’ rates of growth and the amount of dissolved oxygen available for respiration. The movement of water is also important in many aquatic biomes.
Marine animals breathe air or extract oxygen from the water. Some float on the surface and others dive into the ocean’s depths. There are animals that eat other animals, and plants generate food from sunlight.
