BIOA02H3 Lecture Notes - Pure Strength, Selective Breeding, Brainstem

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10 May 2022

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UTSC

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Biological Sciences

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BIOA02H3

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Adaptive behaviour depends on interactions between the nervous system, the body and the environment. Speacalixed sensory receptors or group of receptors that respond to important signals in the environment. Hormones -cause changes in other parts of the body. Selective breeding can demonstrate the effects of genes on behaviour. Breed into something we like(allels favouring directing of selection will increase in subsequent generations of a population. ) Numbers of individuals within a habitat=level of competition for resources. Migration -movement from one location to another and back,mostly a long distance one. Resource or competition hypothesis-dipersal decreases competition for resources. resource quality impacts dispersal versus fidelity. eg,naral dispersal. Inbreeding avoidance hypothesis-diaperal decreases chances of breeding with close kin. (sex bias)eg. belding"s ground squirrles (malse disperse ans female move later but not as far) Mate competition hypothesis-competition for mate drives dispersal. (competion in one biological sex)eg,male male competion for lions.

Related Questions

Describe sensory receptors in skin that provide tactile sensory information to the Central Nervous System.

Which one of the following is entirely located within the central nervous system? a. sensory neuron b. sensory receptor c. motor neuron d. effector

1. The two major divisions of the nervous system are the CNS and the PNS.(T or F)

2. Action potentials normally travel along an axon in either direction depending on the needs of the animal.(T or F)

3. The axon of a nerve cell carries signals toward the part of the cell that houses the nucleus.(T or F)

4. When you are nervous you notice that your mouth is dry and your heart is racing. This is caused by the sympathetic division of your autonomic nervous system.(T or F)

5. The PNS consists of the somatic nervous system which controls smooth muscles etc. and the autonomic nervous system which sends messages to the skeletal muscles. (T or F)

6. When you do not have 20/20 vision and wear contact lenses or eye glasses, they work to improve your sight because they bend the light rays to correct your vision. (T or F)

7. All of the following are examples of a general category of sensory receptors: thermoreceptors, mechanoreceptors, electromagnetic receptors, chemoreceptors, and auditory receptors.(T or F)

8. If an animal is diurnal (active during the day) it probably has more cones in its eyes to distinguish more colors because its prey may have evolved to be camouflaged in the daylight.(T or F)

9. If you could not move the muscles in your eye, you would still expect that you could focus on different objects at different distances.(T or F)

10. If you had a pet spider and looked him lovingly in the eye you would see that he has a compound eye rather than a single lens like you would find in your own eye. (T or F)

BIOA02H3 Lecture Notes - Pure Strength, Selective Breeding, Brainstem

BIOA02H3 Full Course Notes

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