In Hydrozoans such as the Obelia pictured above, what do gastrozooids and gonozooids have in common, and what are their respective functions? They are both medusae; gastrozooids produce polyps via budding, and gonozooids filter particles from the water to feed They are both polyps: gastrozooids filter particles from the water to feed, and gonozooids produce reproductive medusae via budding They are both medusae: gastrozooids filter particles from the water to feed, and gonozooids produce polyps asexually via budding They are both polyps; gastrozooids filter particles from the water to feed, and gonozooids produce additional polyps via asexual budding

Which of the following statements regarding the anthozoans is false? They have symbiotic algae living in their tissues They are restricted to comparatively shallow waters They are the reef building corals They spend most of their life in the medusa body form

You find a bivalve mollusc with very short siphons.  You can thus predict that inhabits a shallow burrow. inhabits a deep burrow. is a deposit feeder. is a carnivore. it is a surface dweller.     You find a polychaete in the lower Chesapeake Bay and discover that its coelom is unpartitioned. You can then predict that it will possess: a metanephridial system a protonephridial system secretion kidneys end sacs   Octopi are known for their ability to learn. True False

Imagine you come across an animal with a worm-like biody. Determine whether it is a polychaete or a member of class Hirudinida? Give two distinct differences between the two without naming the same structure/invisible features of each animal (e.g animal x has 2 wings, animal y has 4 wings are not distinct differences)