Which of the following evidence obtained from fossil studies is generally accepted as marking the beginning of the hominids?
A. Manufacture and use of tools
B. Large brain development
C. Walking upright
D. Bipedalism
E. Development of lower limbs longer than forelimbs
Answer: D
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Which of the following vitamin deficiencies results in rickets?
a. vitamin A b. vitamin E c. vitamin D d. vitamin K
When a physical barrier separates a population, leading to the evolution of new species on either side of the barrier,
____ has occurred.
a. sympatric speciation b. allopatric speciation c. directional selection d. ecological isolation e. behavioral isolation
The finding that mutations in synapse genes are associated with many genetic disorders that have a behavioral
component suggests that _____. a. individuals with these mutations lack synapses b. individuals with these mutations lack neurotransmitters c. malfunctions in presynaptic neurons cause abnormal behavior d. malfunctioning synapses are associated with abnormal behavior e. behavior disorders are attributable to environmental factors
What is behind the lens and has a thick jelly like moss?
What will be an ideal response?