: Many, such as arthropods, rely on a hard exoskeleton for protection and movement, while others use hydrostatic skeletons (fluid-filled cavities) . Master Adaptations and Recent Discoveries
– The keys to success: exoskeletons, jointed limbs, and tagmosis.
Centipedes are venomous predators with one leg pair per segment. Millipedes are herbivores with two leg pairs per segment. invertebrate zoology lecture notes ppt new
Move beyond morphological classification and include modern studies showing relationships based on genetic data.
Giant squid - 60 ft long. found in all habitats including the depths. of the oceans and on glacial ice. Scribd : Many, such as arthropods, rely on a
: Cellular-level; lack true tissues and symmetry. Key Cell Types :
Highlighting the vulnerability of calcifying invertebrates (mollusks, corals) to ocean acidification. Millipedes are herbivores with two leg pairs per segment
– The core body blueprint: foot, mantle, visceral mass, and radula.
Parapodia: Lateral, paired fleshy appendages used for locomotion and respiration.
Cephalopods: Octopuses, squids, nautiluses. Active marine predators with a modified foot transformed into arms or tentacles. Feature highly evolved compound eyes and rapid signaling nerves. Phylum Annelida (Segmented Worms)
Body parts arrange around a central axis. Any plane through this axis divides the animal into mirroring halves. Beneficial for sessile or drifting animals. Allows sensing the environment from all directions. Found in Cnidaria and Echinodermata.