A student is observing different structures of a seed plant during a lab activity. She has identified tiny structures that look like powder.
Which structures did the student most likely identify?
pollen, which contains the plant embryos
pollen, which develops into sperm cells
xylem, which contains the plant embryos
xylem, which develops into sperm cells

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon