Which of the following is one way in which scientists can test hypotheses about events that occurred in the distant past?
A) by dissecting current animal specimens
B) by analyzing fossils recovered from the Earth
C) by visiting local libraries to research the events
D) by interviewing current scientists and researchers
Correct Answer:
Verified
Q40: Where did humans first appear?
A)South America
B)Africa
C)Asia
D)Europe
Q44: The figure below shows a simple worm.Bilateral
Q45: Annelids are most closely related to _.
A)chordates
B)arthropods
C)molluscs
D)echinoderms
Q46: What type of symmetry does this organism
Q47: The first hominid to spread beyond Africa
Q48: What is the greatest threat to birds
Q51: Which of these human characteristics is hypothesized
Q52: Flatworms are similar to cnidarians in that
Q53: Approximately what percent of bird species are
Q54: All organisms with bilateral symmetry also have
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