Mutation of the A group gene in Arabidopsis
thaliana affects development in its flower's
a. first whorl only.
b. second whorl only.
c. third whorl only.
d. first and second whorls.
e. second and third whorls
D
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The success of Chitwan National Park in Nepal is attributed primarily to ____
a. ecotourism b. exclusion of local residents c. ecosystem valuation d. benefits provided to local residents e. income derived through hunting
A group of proteins with actions including antiviral activity are the:a
tumor necrosis factors
b. chemokines. c. complement systems. d. interleukins. e. interferons
Which of the following is not true about leaves?
A. Photosynthetic cells are parenchyma cells. B. They intercept sunlight for photosynthesis. C. Veins transport water, ions, and sugars. D. Photosynthetic cells are on the top layer of epidermis. E. Modified leaves carry out special functions.
Who discovered Homo habilis?
A. Louis Leakey B. Mary Leakey C. Richard Leakey D. Andrew Hill E. Don Johanson