The flowers of many plants provide a food reward, such as nectar, to pollinators. Some plants, however, attract pollinators but provide no reward What type of symbiosis best describes this relationship? Explain your answer.

Which scientific design has both practical limitations and limitations due to scale? studying the effect of bleach on the growth of mold spores exposing cultures of duckweed to different intensities of light observing the replication of dna molecules with a hand lens using colored marbles to model a cross between two colors of rabbits