This is a characteristic of certain organisms in which there is regularity in parts on a plane or around an axis.
A- Radial
B - Distal
C - Bilateral
D - Exoskeleton

How do you think earths interior affects what is happening on the surface? 2. how do fossils support the continental drift hypothesis? 3. how does sea- floor spreading support the hypothesis of continental drift? 4.what do scientists observe when they studied the magnetic fields of rocks on the sides of mid-ocean ridges? 5. what is a tectonic plate ? 6. explain mantle convection 7.how can movements of the continents affect earths climate? 8. what occurs during drifting?

Fungi exist as single cells or as branching networks of multicellular filaments. how does the structure of filaments relate to their function

Which of the following molecules could pass through the plasma membrane by simple diffusion? a. na+ ions b. glucose c. amino acids d. carbon dioxide