Environmental genomics is sometimes called metagenomics.
Answer the following statement true (T) or false (F)
True
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Answer the following statement(s) true (T) or false (F)
1. An application of too much fertilizer will negatively affect the movement of materials in the phloem. 2. A decrease in the availability of ATP in a root cell could decrease the water potential of the cell. 3. If a mutation decreased the radius of a xylem vessel threefold, there would be an 81-fold increase in the volume of liquid moving through the vessel. 4. An increase in root pressure will result in the rapid release of abscisic acid (ABA) and the subsequent opening of the stomata. 5. If the proton pumps of guard cell were damaged, transpiration would decrease.
Active transport in plant root cells requires that those cells have access to O2. Normally there is enough O2 available
in air pockets in the soil, but flooded soil has very little O2. Thus, unless they have special adaptations, plants in flooded soil effectively have no active transport in their roots. Which of the following should you expect to occur for trees without special adaptations to flooding after several days in flooded soil?
a. excess uptake of water and minerals in the xylem only b. wilting of their leaves c. bursting of leaf cells due to excess water flow d. excess water pushed out at the margins of their leaves only e. excess uptake of water and minerals in the xylem, and excess water pushed out at the margins of their leaves
Which type of tissue is able to contract?
A) epithelial B) loose connective C) dense connective D) muscle E) nervous
Replication of most ________ viruses is similar to normal cellular processes
A) dsDNA B) ssDNA C) +ssRNA D) -ssRNA E) dsRNA