Plant cells have which of the following characteristics? select all that apply. 1. cleavage furrows plus centrioles in cell division 2. cell walls and plasma membranes 3. large hypertonic vacuoles 4. chloroplasts

African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.

Drag each tile to the correct box. arrange the layers and faults from oldest to youngest.

Which term most precisely describes the cellular process of breaking down large molecules into smaller ones? a) catalysis b) metabolism c) anabolism d) dehydration e) catabolism