Below is the movement track made by a bacterium in a culture dish exposed to a heat lamp shining from the side

 Examining the track left by the bacterium there is first an attraction to the light then a repulsion. These are phototactic (light-sensitive) movements. It is unclear at what point the light was shone on the plate. If the start point is truly where the bacterum was when the light was turned on it demonstrates an attractive and repulsive behavior.

4. a. Home range is the scope of land that is occupied and returned to by an individual or mating pair. Territory is defined as the land occupied and defended by an individual or mating pair. The difference between these two resides in the defense of the area. A home range is just that a range and can encompass several ideal territories that are patrolled but not occupied continuously. A territory is the minimal space needed by the animal that is occupied continuously.

For an example using coyotes see http://www.bio.davidson.edu/people/vecase/Behavior/Spring2004/holmberg/Holmberg3.html

b. Map sense involves using travel based on geographical markers. These makers can be visual or olfactory but they direct the animal along a specific path towards a specific destination. Compass sense involves the identification of directionality but can lead to different destinations based on the flexibility of the direction signals. Take for example travel by compass. While north is north the interpretation of north by a bird or a compass can vary by degrees given the magnetic state of the rock. Similarly sun navigating can be affected by the rotation and tilt of the earth. Mapping determines a specific location while compasses establish direction.

5. Not having read the article in question I will refer to the general information available on the web. Roosts in tall snags would offer several advantages including escape from predation and disturbance. Please be sure to re-read the specific article referred to in this questions for any specific advantages your professor may want you to know (ie. does it effect flight patterns or flight learning of young?).

See http://www.tpwd.state.tx.us/huntwild/wild/species/silverhair/, http://www.batcon.org/home/default.asp