2. Explain why there are differences in the thicknesses of the cell walls seen in the various plant cell specimens of plants living if various environments.

Which of the following is true of photosynthesis? a)carbon dioxide is a reactant b)water is a product c)most reactions within this process are exothermic d)oxygen is a reactant

The picture showed normal blood cells which are around and sickle cells which appear much longer people with sickle-cell suffer from the sickle cell anemia which is inherited diseaseit is caused by a change in gene responsible for production of hemo goblin this type of change is known as an

All ova contain sex chromosomes corresponding to: x y xx xy