Which was an idea used to promote the theory of plate tectonics? A- the moons tidal forces are weak
B- continents cannot cut through the ocean floor
C-Mountain range is making an English and America
D-The existence of land bridges between continents

Select the correct answer. tay-sachs disease is caused by a mutation in the hexa gene located on chromosome 15. tay-sachs follows an autosomal recessive pattern of inheritance. with the of the diagram, identify which of the offspring will be an unaffected carrier. a diagram showing the genes of parents who are carriers of tay-sachs disease a. a, b, and c b. b and c c. a and d d. a e. d

Several billion years ago which gas was the least prevailant in the atmosphere

Approximately what wavelength of light is best absorbed by chlorophyll a