What do we call the first species that invade a new island that has risen from the ocean?
A) pioneer species B) invaders
C) climax communities D) commensals
Answer: A
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Which of the following is NOT accurate about the shoot apical meristem?
A. Its central zone maintains actively dividing cells. B. It gives rise to stems, leaves, and flowers. C. Its peripheral zone contains dividing and differentiating cells. D. It is found in the central region of the seedling. E. It has an organizing center that preserves the correct number of stem cells.
How many genes are carried on the human X chromosome?
a. 1,336 b. 2,002 c. 228 d. 626 e. 12,000
Which statement is TRUE?
a. The laws of thermodynamics do not apply to living organisms. b. Producers in ecosystems have the highest concentrations of energy. c. The energy available to do cellular work will exist forever. d. The amount of energy available to consumers is more than that available to producers. e. When plants trap energy, they convert it into light.
Which of the following is associated with the increased incidence of Lyme disease?
A) decreased tick population B) decreased deer population C) decreased white-footed mouse population D) decreased forest patch size