Invertebrates

The Hagfish
The Hagfish
The Hagfish The most disgusting creature on Earth.? The Hagfish is known to those who know of it as the most disgusting creature on Earth, a reputation well earned. The Hagfish or known also as the slime eel to fisherman who are unlucky enough to get one in their fish, live between depths of 60m and 1300m. The live in soft bottoms, in boroughs, with only their head sticking out. the Hagfish depending on type (their are 2 types: Eptatretidae and Myxindae) range anywhere from 12-40 inches. hagfish
The Digestive Systems
The Digestive Systems
The Digestive Systems The digestive systems works on nutrients taken from the environment, breaking them down into simpler products, and then absorbing the products together with water and salts so they can be used in metabolism. The individuals of all species contain many different protiens or carbohydrates in the cell walls of bacteria, chitin in the external skeletons of arthropods, and so on and foreign proteins or carbohydrates are rarely incorporated unchanged. They are usually first brok
The History Of Dinosaurs
The History Of Dinosaurs
The History of Dinosaurs The dinosaurs were reptiles that appeared about 230 million years ago. It's believed that they had scaly skin and some ate plants and others ate meat. Scientists don't know whether or not the dinosaurs were cold blooded, but they think the smaller ones were warm blooded, and the large ones were cold-blooded. In this report you'll learn about the earliest dinosaurs, the kinds of dinosaurs, and how the dinosaurs died. There are two main groups of the earliest dinosaurs: T
Lecture 14: Nervous & Sensory Systems
Lecture 14: Nervous & Sensory Systems
Lecture 14: Nervous & Sensory Systems Review of Neuron Transmission 1. What is the difference between an electrical synapse and a chemical synapse? 2. What mechanism ensures that an electrical impulse in a neuron is conducted in only one direction down the axon? 3. What are the steps in neuronal transmission (from presynaptic to postsynaptic)? Evolution of the Nervous system What is driving the evolution of the nervous system? Cephalization the formation of a distinct head region with a contro