Kingdom Animalia Ch. 12- Phylum Mollusca. Key Characteristics of Mollusks 2 nd largest animal phylum Marine, freshwater, and terrestrial Seven classes.
18.3 Diversity of Mammals. Objectives Distinguish between egg-laying, pouched, and placental mammals. Infer why most egg-laying and pouched mammals live.
Ch. 25 to 27 vertebratesrevised
Arthropods The Armored Achievers: Numerically the largest Phyla and literally means jointed foot.
Altruistic behavior: Behaviors benefit others rather than the individual committing the behavior. Human, rare in early childhood Nonhuman: sentinel behavior.
Molluscs. Molluscs are invertebrates. They have a soft body, but often protected shell. Are for exapmle : snails, clams, octopus, squid, starfish, sea.
DIVERSITY Numbers about 80% of all animals are arthropods estimated to be over 30 million arthropods far more of them than all other metazoan species.
Taxonomy
Structure and Function in Living Things
Vertebrate Origins
Human Evolution
Chapter 25: Vertebrate Diversity. 25.1: Vertebrate Origins Words to Know: Chordate, Notochord, Endoskeleton.
