Recently, the bones (not fossils) of a possible new species of humans (in the genus Homo) have been found on an island in Indonesia (an island nation southeast of Asia)
Using radiometric dating, scientists can show that these people were alive as recently as 17,000 years ago. According to the information in this chapter, why do you think they probably used tools?
Stone tool use started as early as 2.5 million years ago within the genus Homo.
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Which of the cell adhesion molecules is critical to transducing changes in the ECM to a change in the cell?
A. connexins B. cadherins C. integrins D. fibronectins E. claudins
The two most important regulatory systems for the maintenance of homeostasis are ____
a. circulatory and nervous systems b. endocrine and circulatory systems c. lymphatic and circulatory systems d. nervous and endocrine systems e. lymphatic and circulatory systems
According to the above table, the foraging
characteristic that would benefit an animal most in a stable ecology would be? a. A baby garter snake captures and eats a slug. b. A sitter because it would have more trouble adapting to a changing environment. c. A forager because it has the ability to adapt quickly. d. Both the sitter and the forager are equally adept in a stable ecosystem. e. All of these would benefit an animal the most.
Which statement is FALSE regarding science?
(a). Science helps us to understand the natural world. (b). Science strives to be objective rather than subjective. (c). Correct scientific conclusions are permanent and never subject to change or refinement. (d). Information is gathered by scientific methods. (e). Information is gathered by scientific methods.