Across
- 3. (2 words) FIRST tissues that appear, making up organs & organ systems.
- 5. Animals eat food from environment and digest it, making them what?
- 7. Animals are descended from a single ______ ancestor.
- 10. These are the last single-celled ancestor of animals, part of the colonial flagellate hypothesis.
- 11. Animals divided in equal left and right halves (ex: us!!)
- 12. How many branches are within the animal lineage?
- 13. Types of animals that have a spinal cord at some stage.
- 14. Animals that can be divided in many symmetrical parts (ex: jellyfish)
Down
- 1. 3 embryonic layers of tissue
- 2. Second embryonic opening is the mouth
- 4. First embryonic opening is the mouth
- 6. Location of the brain and sensory organs at the Anterior end
- 8. 2 embryonic layers of tissue
- 9. Animals with no symmetry (ex: sponges)
- 13. Animals have a ______ of life cycles.