Discuss the evolution of the hominids from the anthropoids What will be an ideal response?
The anthropoids include monkeys, apes, and humans. They are divided into three superfamilies:the
Old World monkeys, the New World monkeys, and the Hominoidea (apes and humans). The
Hominoidea include three families: the great apes, the lesser apes, and the hominids (family
Hominidae). Hominids include humans and their extinct ancestors. The development of the
hominids from earlier ancestors was strongly influenced by a change in climate from tropical to
cooler and drier with a related change in vegetation type from forest to grassland or savanna.
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An ecosystem that is stable is likely to have a
A) high percentage of "eury" species for the environmental conditions present. B) high percentage of "steno" species for the environmental conditions present. C) narrow optimal range for the environmental conditions present. D) high percentage of r-selected species.
Which of the following is important in stabilizing resource prices and limiting problems caused by resource scarcity?
A) nonrenewable resources B) source separation C) substitutability D) potential resources
What type of volcano is made up of alternating layers of ash, cinder, and lava?
a. a cinder cone b. a composite volcano c. a cone of depression d. a dome e. a shield volcano
The boiling point of liquid nitrogen is 77 K. What is this temperature on the Celsius scale?
A) 350°C B) 171°C C) 25°C D) -196°C