Water moves through a plant because of
a. transpirational pull.
b. the cohesion of water molecules.
c. the strength of hydrogen bonds holding
water molecules together.
d. the replacement of lost water molecules.
e. all of these
E
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Organelles involved in energy conversion such as chloroplasts and mitochondria can not reproduce themselves
1.True 2.False
Haploid nuclei
a. contain one set of chromosomes. b. contain two sets of chromosomes. c. contain half a set of chromosomes. d. are found in the cytosol of eukaryotic organisms.
Hershey and Chase used radiolabeled macromolecules to identify the material that contains heritable information. What radioactive material was used to track DNA during this experiment?
(a) 3H (b) 14C (c) 35S (d) 32P
Cryptosporidium has recently become of concern because it is hard to remove from water supplies.
Answer the following statement true (T) or false (F)