DSST Anthropology as a Discipline 2

Question 28 of 55 genetic variation causes people to

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different number or structure of chromosomes (instead of the ordinary 23 pairs of chromosomes). Question 28 of 55 Genetic variation causes people to have different natural hair colors or different blood groups, but this is not to say that a particular hair color or blood group is 'better' than another. Your Answer: Explanation In the case of genetic mutations that cause diseases such as cystic fibrosis or Huntington's disease, it might be reasonable to say that these mutations are deleterious. With most forms of genetic variation, all one can say is that differences exist, not that they are deleterious or advantageous. Question 29 of 55 The primates include lemurs, monkeys, and apes (including humans). Your Answer: Explanation In primate species, the males have a larger figure than the females. wo main groups of the living primates are prosimians and anthropoids , who have more advanced traits. Your Answer: Explanation
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Prosimians are the more "primitive" - meaning they have traits seen in earlier forms. Question 31 of 55 Prosimians have eyes on the side of their head and depend more on smell-–with their wet noses. Your Answer: Explanation They are nocturnal (most active at night) and are characterized by "dental combs". Question 32 of 55 Anthropoids have generally larger brains, binocular vision, increased parental care, and increased gestation and maturation. Your Answer: Explanation They can be classified into two groups: New world monkeys and Old world monkeys. Question 33 of 55 Baboons are old world monkeys who are terrestrial in locomotion (they stay on the ground) and carnivorous (meat-eaters). Your Answer: Explanation They possess "harems" and exhibit high sexual dimorphism. Sexual dimorphism is the differentiation of males from females in size and appearance. Question 34 of 55 Gibbons exhibit monogamy and therefore strong pair bonding. The social unit consists of a male, female, offspring and sometimes elder parents. Your Answer: Explanation Monogamy is the practice of having a single sexual partner during a period of time. Sexual dimorphism is low because males and females cooperate in territorial defense. Question 35 of 55 Among orangutans, females associate with their infants while males are solitary. Males are solitary, but attempt to maintain a territory that includes several females.
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Your Answer: Explanation Male-male competition probably explains the high size sexual dimorphism in orangutans. Question 36 of 55 All primates exhibit pentadactyly (they have five fingers), a generalized dental pattern, and a primitive (unspecialized) body plan. Your Answer: Explanation Another distinguishing feature of primates is fingernails. Opposing thumbs are also a defining primates feature, but are not limited to this order; opossums, for example, also have opposing thumbs. Question 37 of 55 The anatomical and behavioral features that distinguish primates from members of other mammalian orders include a lack of strong specialization in structure; prehensile hands and feet, usually with opposable thumbs and great toes; flattened nails instead of claws on the digits; acute vision with some
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