How is Marta’s study biased?

Pulmonary arteries carry highly oxygenated blood. true or false?

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

When fossil fuels are burned, carbon dioxide is released. how does this gas impact the environment?