Convergent evolution refers to the development of similar traits in two species

Question

Convergent evolution refers to the development of similar traits in two species separated geographically who do not share a common ancestor that did provide initial commonalties. ___ Cladistics is the grouping of species or other taxa by their shared possession of characteristics that not present in the remote common ancestor. ___ Sinanthropus pekinensis was probably the victim of cannibalism. ___ Ardipithecus shows that bipedalism begins around 4.4 MYA. ___ Homo habilis had a cranial capacity of between 500 and 800 cc. ___ Purgatorius is an early Eocene African hominin. ___ The first Homo erectus was found in Australia. ___ The uprising of the Isthmus of Panama beginning about 3 million years ago precipitated Glaciations or Ice Ages. ___ Ice Man dates to c. 3, 500 BCE and was mummified in a glacier. ___ Using mtDNA analysis researcher's have determined that modem humans left Africa 125,000 years ago and then again around 50,000 and 40,000 years ago and populated the world. ___ Although it is difficult to solve the nature/nurture issue regarding Alcoholism, a craving for alcohol may have a connection to monkeys searching for the most nutritious fruits, which are often fermented. ___ The Australopithecines had a slightly opposed great toe. ___ Homo erectus is associated with the Mousterian Tradition. ___ The Neanderthals seem to more regularly and deliberately bury their dead although there is slight evidence of burial practices before 250,000 BC. ___ Cave paintings are associated with the Upper Paleolithic. ___

Explanation / Answer

Answer:

1) Convergent evolution refers to the development of similar traits in two species separated geographically who do not share a common ancestor that did provide intial commonalties: TRUE

Explaination: Convergent evolution refers to the development of similar traits in two species from different ancestors and may present in different environments (separated geographically). Thus, they look very similar but are not closely related (analogous). For example: Sharks (members of Chondrichthyes) and Dolphins (members of Mammalia) are physically resemble but not having common ancestor.

2) Cladistics is the grouping of species or other taxa by their shared possession of characterstics that not present in the remote common ancestor: TRUE

Explaination: Cladistics is an approach to the biological classification, in which organisms are grouped (grouping of species or other taxa) on the basis of shared possession of characterstics. Those characterstics should be traced to a group's most recent common ancestor but are not present in more distant (remote) ancestors.

3) Sinanthropus pekinensis was probably the victim of cannibalism: TRUE

Explaination: Sinanthropus pekinensis is an extinct hominin of the species Homo erectus. Thus, called as Homo erectus pekinensis. The hominin fossil record (bone breakage, modification, skull with missing base etc.) found in zhoukoudian (China) implicate that the Sinanthropus pekinensis was prabably the victim of cannibalism, thus extinct.

4) Ardipithecus shows that bipedalism begins around 4.4 MYA: TRUE

Explaination: The earliest hominid was found as Ardipithecus ramidus (around 4.4 million year old) with the most extensive evidence for bipedalism (walking upright on two legs). The bipedalism is considered as a character to separate the first hominids from the rest of the four-legged apes.

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