Anthro Mid Term Primates/ Adaptation
Terms
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- Cladistics
- focuses on shared derived homologous traits & classifies organisms based solely on their evolutionary relationship.
- Hypothermia
- refers to any condition in which the temperature of a body drops below the level required for normal
- Hypothalamus
- controls body temperature, hunger, thirst, and circadian cycles.
- High Altitude Cerebral Edema (or HACE)
- is a severe (usually fatal) form of altitude sickness. HACE is the result of swelling of brain tissue from fluid leakage. It generally occurs after a week or more at high altitude. Severe instances can lead to death if not treated quickly.
- pulmonary edema (HAPE)
- affects the lungs. While not nearly as life threatening as HACE in the initial stages, failure to descend to lower altitudes or receive medical treatment can also lead to death.
- parallel evolution:
- 1) independent evolution of similar traits in closely related species, such as the increase in dental size among a number of early human ancestors.
- Convergent evolution.
- : independent evolution of similar traits in more distantly related species, such as the evolution of flight in both birds and flies
- Homologous traits:.
- traits found in different species that have a common origin but may have different functions
- Estrus
- A time during the month when females are sexually receptive (in “heatâ€)
- 1.Primitive (ancestral) traits:
- 1. traits that are shared w/ an earlier ancestral form. The 5 digits of the human hand and foot are primitive traits inherited from earlier vertebrate ancestors.
- Derived (specialized) trait:
- 1. traits that have changed from the ancestral state/ appeared by mutation (the horse’s single toe)
- Incisor
- chisel-shaped front teeth used for cutting, slicing, and gnawing food.
- Canine
- teeth located in front of the jaw behind the incisors used for puncturing & defense.
- Premolar:
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1.
1 of the types of Back teeth used for crushing & grinding food. - Molar
- the teeth furthest back in the jaw used for crushing & grinding food