You found the following plants growing on campus during a field trip: a small plant with a notable absence of root hairs; a short, stubby plant with an enlarged taproot; a tall annual herb with fungal strands extending from its roots; a low-growing
plant with nodules on the roots; and a woody shrub with an extensive fibrous root system.
Based on this scenario, which plant is most likely a legume with nitrogen-fixing bacteria?
A) The woody shrub with the fibrous root system
B) The plant with the root nodules
C) The plant with the enlarged taproot
D) The annual herb with the fungal-root association
E) The plant with no root hairs
B
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neoplasms that is functional in benign neoplasms?
a. oncogenes b. centrioles c. adhesion proteins d. prophase e. DNA polymerase
a versatile plant compartment that may hold reserves of organic compounds or inorganic ions
A. lysosome B. vacuole C. mitochondrion D. Golgi apparatus E. peroxisome
The highly destructive form of Hansen's disease is the result of
A) poor immune response to Mycobacterium leprae. B) autoimmune disease triggered by Mycobacteriu leprae. C) intracellular infection with Clostridium botulinum. D) poor immune response to Streptococcus agalactiae. E) infection with rabies virus.
Why has finding an effective AIDS vaccine been so difficult?
A. Because it is caused by a virus. B. Because they have not yet isolated the virus that causes AIDS. C. Because the virus constantly mutates and so vaccines need to be made for all types. D. It is a sexually transmitted virus. E. The body does not make antibodies against the virus.