why a transportation system is not required to transport respiratory gases in insects

If fish do not add or remove air from their air bladders the volume of their air bladders _____ when they descend from the surface to greater depths.   increases   decreases   stays they same   depends on whether they are physoclistous or physostomous

What has happened to the size of the central vacuole when Elodea is in distill water

Adaptations for low oxygen in – inverts, goldfish, turtles

multiple choice

If the frontal cilia of an ascidian pharynx were immobilized what would be the likely consequence(s) closure of siphons no mucus net spreading cessation of gas exchange cessation of the feeding current

image of what a CT scan of an animal's abdomen looks like

Describe how gas gradients arise; apply them to fish

The spicule is manufactured by the___________ of the sponge sclerocytes pinacocytes porocytes collencytes spongocytes

In insects, as in some other animals we have seen, the hemocoel is primarily responsible for: providing a place for food storage retracting the gubernaculum and the pharynx O coeling the hemo replacing the intestinal system with increased surface area holding and circulating body fluids protecting the anterior ganglia