Answer:
Ferns and conifers evolve in Paleozoic era
Answer: B The trait is determined by a recessive allele
Answer:
plains, alluvial fan, and deltas.
Explanation:
Answer:
diffusion doesnt require energy in any situation
Explanation:
diffusion always occurs down concentration gradient as it is a form of passive transport. usually energy is only used when movig against concentration gradient. give me a brainliest if i helped! ♡