Atool used in classification is
a key
a taxon
morphology
a phylum

Sydney drew a flow chart to illustrate the nitrogen cycle.which labels best complete the flow chart? x: producers undergo photosynthesis.y: nitrogen compounds are released into the air.x: nitrogen compounds are released into the air.y: producers undergo photosynthesis.x: free nitrogen is in the atmosphere.y: producers absorb nitrogen compounds through their roots.x: producers absorb nitrogen compounds through their roots.y: free nitrogen is in the atmosphere.

Which organism is the producer in this food web? 7th grade question. a) arthropods b) birds c) fungi d) plants

Which image shows labeled organelles that are present only in plant cells?