HELP!! The arrows in the diagram show continuous, cyclic movements from one subsystem to another without an end. Determine whether the arrows in the diagram best represent matter, energy, or both. Explain your answer and provide at last one example that occurred during the Precambrian era.

In terms of alternation of generations, the internal parts of the pollen grains of seed-producing plants are most similar to a ) moss sporophyteb) moss gametophyte bearing both male and female gametangiac) fern sporophyted) fern gametophyte bearing only antheridia

An organism has the following traits multicellular cant photosynthesize has a skull. wht kingdom does this organism most likely belong too?

2. if someone had the list of traits you provided in question 1, do you think he or she would be able to find you in a group of 1000 people? why or why not? if not, what other information encoded in your genes might distinguish you from the others in the group? what are other traits that are encoded for by dna?