BIOA02H3 Lecture Notes - Lecture 2: Endocrine Gland, Selective Breeding, Brainstem

• School: UTSC
• Department: Biological Sciences
• Course: BIOA02H3
• Professor: Ivana Stehlik

Document Summary

Nervous system responses to signals: adaptive behaviour depends on interactions b/w nervous system, body. Receptor cell spinal cord brainstem higher brain areas: pathways, afferent ascending/toward cns (usually sensory, efferent descending/away from cns (usually motor, feature detectors specialized sensory receptors/groups of receptors. Higher brain regions brainstem periphery (effector) that respond to important signals. Artificial selection: selective breeding can demonstrate effects of genes on behaviour, alleles favouring direction of selection increase in subsequent generations of population. Selected for traits similar to dogs (social behaviour) W/ in 40 years, produced foxes that were highly social & interact w/ humans in playful, friendly manner. 2 factors: dispersal permanent movement from 1 area to another (relatively, resource availability can be important aspect of habitat quality, # of individuals w/ in habitat can indicate level of competition for resources short-distance) Versus: migration movement from 1 location to another & back (round-trip movement)