At the core of an herbaceous eudicot stem is:
a. pith.
b. collenchyma.
c. sclerenchyma.
d. vascular cambium.
e. phloem.
A
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According to the Endangered Species Act, what is required when a species is identified as at- risk?
a. Land must be purchased by the government to protect the species. b. A biodiversity hotspot must be designated to protect the species. c. The designated habitat must be removed from the private sector. d. A management plan to protect the species must be created.
In various experiments that recreated conditions on the early Earth, molecules such as amino acids,
glucose and ribose were produced from a. clay. b. ether. c. formaldehyde. d. alcohols. e. ATP.
In the mid-1970s a group of scientists asked the National Academy of Sciences to appoint a panel to assess the risks of
recombinant DNA technology and the need to control its associated research. Summarize the most important lesson learned from this event. What will be an ideal response?
Most of the carbon dioxide produced by the body is transported to the lungs ____.
A. in gaseous form B. in the lymph system C. as carbaminohemoglobin D. in the form of bicarbonate E. as carbonic acid