Heterotrophs need only a few more genes than autotrophs
Indicate whether the statement is true or false.
Answer: FALSE
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Which of the following statements about the modified Ti plasmid used to make transgenic plants is NOT accurate?
A. It is derived from a plasmid found in the bacterium Agrobacterium tumefaciens. B. It causes crown gall formation. C. It contains a screenable marker gene. D. It contains a T-DNA region that integrates into the plant cell's genome. E. It contains unique restriction enzyme recognition sites for inserting a gene of interest.
Answer the following statements true (T) or false (F)
1. Agriculture is one of the few industries that does not benefit from the value of ecosystem services. 2. The water cycle is primarily a chemical process, not a physical one. 3. Most transpiration occurs from the sea. 4. Based on data from the figure above, grasslands tend to have a higher herbivore biomass than deserts. 5. All living organisms require phosphorus for ATP.
Which factor(s) is (are) contributing to the increase in the spread and occurrence of many diseases?
a. International travel b. Overuse of antibiotics c. Misuse of antibiotics d. An increase in the population e. All of these
According to the pressure-flow model, ____
a. water moves from an area of positive water potential to an area of negative water potential b. the evaporative pull of transpiration produces tension at the top of the plant c. the flow of sugar is driven by a pressure gradient between the source and the sink d. pressure is created by the movement of water into the roots from the soil e. the production of sugar pushes it out of the chloroplast and into the xylem