Fish
Habitat:
In water (aquatic habitat)
*What specific water the organism lives in will differ as the taxa become more specific
Reproduction:
Sexually with different sexes (some have internal fertilization, but most have external fertilization)
Anatomical Features:
1. Have endoskeleton
2. Closed circulatory system with a two chambered heart
3. Nervous system contains complex brain and sensory organs
4. Respiratory system is efficient and includes gills
Evolutionary Milestones:
Backbone, hollow nerve tube
Predators/Prey:
Agnatha:
Parasitic, carnivore, filter feed
Chondrichythes:
Predators, carnivores, herbivores
Predators: Other
fish, reptiles, mollusks, harmful strains of fungi and bacteria, mammals, and
birds
Symmetry:
Bilateral
Mobility:
Most will have fins and/or tail to move. The class Osteichthyes also has a swim bladder that helps to give buoyancy. The class Agnatha has no fins and must move in a snake-like motion.
Development:
Egg, embryo, larva, juvenile, adult, senescence
In water (aquatic habitat)
*What specific water the organism lives in will differ as the taxa become more specific
Reproduction:
Sexually with different sexes (some have internal fertilization, but most have external fertilization)
Anatomical Features:
1. Have endoskeleton
2. Closed circulatory system with a two chambered heart
3. Nervous system contains complex brain and sensory organs
4. Respiratory system is efficient and includes gills
Evolutionary Milestones:
Backbone, hollow nerve tube
Predators/Prey:
Agnatha:
Parasitic, carnivore, filter feed
Chondrichythes:
Predators, carnivores, herbivores
Predators: Other
fish, reptiles, mollusks, harmful strains of fungi and bacteria, mammals, and
birds
Symmetry:
Bilateral
Mobility:
Most will have fins and/or tail to move. The class Osteichthyes also has a swim bladder that helps to give buoyancy. The class Agnatha has no fins and must move in a snake-like motion.
Development:
Egg, embryo, larva, juvenile, adult, senescence