An hypothesis regarding ancestor-descendant relationships that includes a time scale is called a:
a. cladogram.
b. cladistic tree.
c. phylogram tree.
d. phylogenetic tree.
e. hypogram tree.
d
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The increasing dominance of world trade has led to
a. diminishing rates of poverty, social stratification, and environmental degradation b. the disintegration of national boundaries and the free and fair flow of people and resources all around the globe c. the capitalist world economy, a single world system committed to production for sale or exchange, with the object of maximizing profits rather than supplying domestic needs d. a growing concern by all nation-states for ensuring the livelihood of indigenous peoples living within their borders e. the socialist welfare state, a system that attends to the needs of people who have been displaced by the capitalist world economy
Food foragers may avoid food production simply because of the increased workload associated with this system
a. True b. False Indicate whether the statement is true or false
Which of the following bonds are easy to open in the DNA molecule?
A. the hydrogen bonds between the sulfate bases B. the hydrogen bonds between the nucleotide bases C. the chemical bonds between the phosphates D. the chemical bonds between the sugars
When the wage rate rises and nothing else changes, there is ________ the labor supply curve.
A) movement down B) right shift C) left shift D) movement up