'Complete gut' presentation slideshows

Most animals (>95%) are inverts Aside from very successful insects, most animals are marine

1.36k views • 84 slides

Bauplan

Bauplan. Form and Function. How to get BIG. The Problem Unicellular to multicellular SA to Volume ratio Determines maximum size of cell Once the limit is reached, must become multicellular to grow larger Shape SA/Vol ratio also controls size of metazoans Rely on diffusion

1.13k views • 81 slides

ENDOPTERYGOTES

ENDOPTERYGOTES. ENDOPTERYGOTA (=HOLOMETABOLA). Major Change in Life Pattern. Exopterygota. Nymph. Adult. Egg. Endopterygota. Egg. Larva. Pupa. Adult. Changes needed in becoming an endopterygote. 1. Larval musculature - not functional in adult. 2. Change in gut.

812 views • 41 slides

Last common ancestor of all animals - multicellular, heterotrophic - asymmetry (= no symmetry)

Sponges. Last common ancestor of all animals - multicellular, heterotrophic - asymmetry (= no symmetry) - cellular level of organization (no tissues) - intracellular digestion (ate bacteria) - similar to choanoflagellate protists. Sponges. Cnidarians.

352 views • 23 slides

25.1 Animal Origins

25.1 Animal Origins. What is an animal? Multicelled, heterotroph Most motile Reproduce sexually Unwalled Most have tissue and organs. Evolutionary Tree. Tissues. Key innovation in complexity: Ability to interact in functional units Epithelium Sheet like array

239 views • 16 slides