Homo rudolfensis
A) apparently had a larger brain than Homo habilis
B) lived between 2.4 and 1.6 million years ago
C) was recently identified and named from fossils previously classified as Homo habilis
D) is one of the two known species of "early Homo"
E) all of the above
E
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Lack of interaction between coexisting ethnic groups helps to ensure stability in a plural society.
Answer the following statement true (T) or false (F)
Which of the following is a characteristic shared by most present-day foragers?
A. They primarily fish for subsistence. B. They are wholly dependent on welfare supplied by state-level societies. C. They live largely in isolation from food-producing neighbors and the influence of the state. D. They live in marginal environments. E. They adopted foraging after abandoning more advanced subsistence strategies.
A recessive allele __________
a. needs to be present on only one chromosome to be expressed b. is never expressed c. needs to be present on both chromosomes to be expressed d. occurs as a regulatory gene only
Martin Pickford and Brigitte Senut have claimed Orrorin tugensis to be a biped based __________
a. on a nearly complete pelvis b. tarsal and metatarsal fragments c. femoral fragments d. cranial fragments