Flashcards in Mid Term #2 Deck (58):
Organisms that are awake and active during the night.
Organisms that are normally awake and active during the day.
Moist, naked surface around he nostrils of the nose in MOST animals
An organism using an anatomical feature in a way that’s unrelated to the features original function
Basically the grip you have when you grab a hammer.
Basically the grip you have when you pick up a coin with the tips of your fingers
Anterior teeth, that are tilted forward, creating a scraper
Hominoids pattern of lower molar cusps. Has a Y-Shape.
Enamel ridge connecting cusps on a tooth’s surface
A premolar made for sharpe cutting. looks like a dagger tooth
The anterior portion of the brain associated with hearing and smelling
Characteristics present in multiple species of a group
The evolutionary relationships of a group of organisms.
A tail that acts as an extra hand, common in new world monkeys
the process of animals becoming accustomed to humans observing them.
Social group that includes one adult male, several adult females, and their offsprings.
Social group that includes one female, several males, and their offsprings
Social group that includes a male, a female, and their offspring.
The killing of an offspring to mate with the mother
The traits needed to mate with the opposite sex. Ex. the bigger and stronger the gorilla, the easier it is to mate with a female.
a behavior that benefits others while being a disadvantage to the individual
Altruistic behaviors that are used with relatives
layers of rock, that tell periods of time
The study of what happens to an organisms remains.
A rock formed through layers of sediments, or strata
Major divisions of geological time that are divided into periods and then subdivided into epochs.
Divisions of periods in geological time.
First major era. fish, reptile, and insects appear
Second major era. Ex. dinasours
The 3rd era till present day. mammals, primates, and humans
When all continents were together before spreading.
The tectonic plates or whatever.
Stenos Laws of Superposition
The lower the layer of ground, the older it ages. so the youngest areas are on top.
Think about mammoths. First appearance, to evolutionary change, then extinction.
Fossils of one species, from different regions. to determine the age of strata
Dating method in which you base it off of material remains.
Tree rings to determine how old a tree is
A radio metric dating method in which the ratio of Carbon14 to Carbon12 is measured to give an absolute date of a material younger than 50,000 years
Radiometric dating method in which the ration from K40 to Ar40 is measured to provide an absolute date for a material older than 200,000 years
Amino Acid Dating
An absolute dating method for organic remains, measured by the change in amino acid structure
Absolute dating method based on earths magnetic field
Electron Spin Resonance Dating
Absolute dating method electron spins. idk complicated
Energy trapped in the martial is measured when the object is heated
C3 and C4 Plants
C3 plants include trees, bushes, and shrubs. C4 plants include grasslands and tropical forests.
Primates main distinction is from living in trees
Visual Predation Hypothesis
The hypothesis that primates adapted to preying on insects and small animals.
Angiosperm Radiation Hypothesis
Hypothesis that certain primate traits, like visual acuity, happened bc of availability of fruit and flowers following the spread of angiosperms
Euprimates of the Eocene that were likely ancestral to modern lemurs and anthropoids.
Eocene euprimates that may be ancestral to tarsiers
The first true primates from the Eocene: the tarsier like Omomyids and the lemur-like Adapids
Fake first primates in the paleocene era, PLESIADAPIFORMS!
Eocene primates that are the earliest anthropoids.
Earliest Anthropoids ancestors in the Oligocene
Ancestral to the catarrhines
Early miocene species. ancestral to catarrhines
Early miocene apes found in various locations in europe.
Ancestral to orangutans.