Which type of media can be used to determine if a bacteria is motile?
What will be an ideal response?
SIM
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Which of the following is one reason that flatworms are flat?
a. They lack circulatory systems. b. They have small respiratory systems. c. They have only one germ layer. d. They lack any sex organs.
The pressure flow mechanism in phloem is initiated and maintained by _________.
A. The high water potential of soil water driving water flow throughout the plant B. Active transport of ions such as H+ and K+ into the phloem at many sites along the phloem tissue C. Loading substances, such as sucrose, into sieve-tube elements at sources and unloading them at sinks D. Water flowing from source to sink by osmosis E. Loading of sucrose into the phloem sink by osmosis
Vaccination triggers an immune response which produces ________ immunity
A) artificial passive B) natural passive C) natural active D) artificial active E) both active and passive
The general public needs to have an understanding of science in order to make informed decisions about the future of our species.
Answer the following statement true (T) or false (F)