The calvin cycle of photosynthesis begins when a. light becomes available. b. electrons leave a photosystem. c. the reduction of carbon dioxide occurs. d. carbon dioxide is attached to rubp.

Q: a pair of homologous chromosomesa) always has the same genes and the same allows b)always has the same genes c)always has the same alleles d)never has the same genes

Why would satellite imagery be more useful than a map in some instances? check all that apply. provides landmarks such as buildings is an overhead view of earth’s features can be used when internet is not available provides small details of roads for digital maps provides various methods of transportation to a location

What type of appendages do sponges cnidarians roundworms annelids mollusks arthropods echinoderms and vertebrate have? jointed, not jointed, absent