Which of the following mechanisms is NOT as likely to disperse seeds at a great distance from the parent plant?
A. Seeds are dispersed as projectiles from the parent plant.
B. Seeds eaten with fruit by animals are dropped with the animals' feces.
C. Squirrels bury seeds and nuts for future use.
D. Coconuts are carried by ocean currents.
E. Hooks and spines attach the seed to animal fur or human clothing.
Answer: A
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Which of the following statements concerning mycorrhizae is FALSE?
a. They are symbiotic associations between a fungus and a plant root. b. They increase the uptake of nutrient minerals by the plant. c. Arbuscular mycorrhizae are extracellular. d. Endomycorrhizae are intracellular. e. Members of the Glomeromycota may be involved.
In addition to a plasma membrane, plant cells have ______________ which protect and support the plant cell.
Fill in the blank(s) with correct word
What term is used to state that populations change over time?
What will be an ideal response?
The infectious agent that causes tuberculosis is
A) an acid-fast bacterium of the genus Mycobacterium. B) HIV. C) one of several Gram-negative bacterial species. D) unpasteurized milk. E) avian influenza virus.