why plants need to move water
What will be an ideal response?
transport ions, nutrients
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Which fish bones are homologous with an amphibian's front and hind limbs?
a. Tail, pectoral fin b. Pectoral fin, pelvic fin c. Pelvic fin, dorsal fin d. Pectoral fin, dorsal fin e. Gills, pelvic fin
Biofuels ____
a. are a renewable source of energy b. do not produce carbon dioxide when burned
c. are made from organic remains of ancient organisms d. release energy without using oxygen e. do not damage the environment
Plant cells release hydrogen ions and oxygen from
H2O molecules in a. photosystem I. b. photosystem II. c. cyclic photophosphorylation. d. light independent reaction. e. carbon fixation.
Which of the following does not make a good target for antiviral drugs?
A) viral integration B) viral replication and assembly C) viral attachment D) viral release E) viral penetration