Which part of the plant is exhibiting negative phototropism? a. root system b. leaf c. stem d. vascular tissue

Genetic disorders can result when sister chromatids fail to seperate properly. during what phase is this problem most likely to occur?

The most famous fossil called archaeopteryx is which of the following? a dinosaur a fern a fish a bird

Which of these is not an example of molecular homology? 1. use of dna and rna as genetic material 2.use of glycolysis as the first step in cellular respiration in both plants and animals 3. the lack of an igf-1 gene in prokaryotes 4. the use of aldolase b to break down fructose in bacteria, plants and animals