The giant Pacific octopus has developed many adaptations in order for it to survive in its environment. Adaptation. Adaption occurs in three ways: Behavioural adaptation relates to the behaviour of the organism. activity of the whole organism - learned or innate. Kelp have a root system called a holdfast, it attaches itself to rocks, or mussels and keeping itself stuck on the ground even against strong waves. Structural adaptation relates to the organism’s physical features. lies below the normal low watermark and is the least stressful zone. Arms: Like all octopuses, the Pacific octopus has eight arms. Floral or Fungal Adaptations: Kelp: Waves can hit the intertidal zone with a lot of force, plants must be able to protect themselves. For example, fish swim in schools or large numbers to protect members of the group from predators. Seaweed is a type of algae that is found in marine waters throughout the world. These two are bound tightly together, unless you can raise and maintain your temperature, you cannot be active enough to gather food, so there aren't any large cold blooded terrestrial animals in polar regions, once cold they would never get warm enough again. Behavioural adaptations. Some of the more interesting adaptations are described below. In general, animals have strong survival instincts. 2 - Anatomical, physiological and behavioural adaptations to retain the heat generated. Another adaptation of giant kelp could be having a holdfast, which keeps it anchored to the seafloor, preventing the kelp from drifting away from kelp forests. Other adaptations are behavioral. Intertidal zone - protected by water at high tide ... - kelp have holdfasts attaching them to rock strongly The two rear-most arms function as "legs." The kelp is a very large sea weed so its root system or the holdfasts are very strong so it can attach itself to the sea floor when large storms come through the area. The stipe or stem is a very strong stem which grows at a very high rate of speed. The bull kelp possesses an elongated, rapidly growing stipe (10 cm or 4 inches per day under ideal conditions). All organisms have adaptations that help them survive and thrive. The behavioral adaptation definition is an adaptation or change in the behavior of an organism that allows it to survive instead of a change in structure/physical makeup. Adaptation is a trait that enables an organism to live in its environment. Behavioral adaptations are the things organisms do to survive. It is an annual alga (lives for a single year) (Plate 73), and occupies the shallow subtidal zone to depths of 30 meters (100 ft). Subtidal zone. Some adaptations are structural. 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