Compared to C3 plants, C4 plants . can continue to fix CO2 even at lower CO2 concentrations and higher oxygen concentrations
have higher rates of photorespiration
do not use rubisco for carbon fixation
make a four-carbon compound, oxaloacetate, which is then delivered to the citric acid cycle in mitochondria

Aresearcher has developed two stains for use with seed plants. one stains sporophyte tissue blue; the other stains gametophyte tissue red. if the researcher exposes pollen grains to both stains, and then rinses away the excess stain, what should occur? a) the pollen grains will be pure red.b) the pollen grains will be pure blue.c) the pollen grains will have red interiors and blue exteriors.d) the pollen grains will have blue interiors and red exteriors.

Why is it incorrect to say that mitochondria function only as energy factories with cell

Which coal field location is related to coal fields in the eastern united states and supports the theory of continental drift? eastern india southern africa western australia northern south america