What is the major missing factor in primary succession that is present in secondary succession?

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

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.

We all have different forms of genes from our parent(s).what are these different forms called? a.alleles b.characters c.dna d.resources