Is a hydra a carnivore or an herbivore?

How do you stop cold air from your basement? What i s the Richter magnitude of an earthquake determined from? What noble gas has the same electron configuration as Ba? Explain how the atom is neutral as a whole? Weather maps contain several standard symbols to convey information about the weather. Explain how to interpret three of those symbols? Why doesn't grease on clothing come out with cold water? How does Evolutionary Trends affect Natural Selection? What is an example sentence of relating in an objective manner? If two objects at rest and at the same height begin to fall a short time after one another and the first object is always going faster does their separation increase decrease or stay the same? What is a role of harmful bacteria? Which is a method that can be use to create a new plant whithout using seed? What are the names of the organisms used in Bioremediation? Does all micro-organisms feed on dead organisms only? Is each element is abbreviated by a one- two-letter formula True? What is the physical description of the green algae Chlamydomonas Reinhardtii? What is chemical name of liquid blue used as fabric whitener? What if you mix matter with another substance? What action is Cellular immunity attributed to? Why is it necessary to clean the platinum wire between flame tests? Do the pulse rates of females and males change in the same way?