Form an analogy between the canaries used in coal mines and the lichens living in tundra ecosystems pls help i am using mostly all my point for this question

Hydrilla (hydrilla verticillata) is an invasive aquatic plant and one of the most serious aquatic pests in florida. hydrilla has already been introduced to hundreds of bodies of water throughout florida, hydrilla is difficult to control because it grows rapidly and survives in many different water depths and conditions. hydrilla • describe how hydrilla affects native plant and animal species. include both a biotic and an abiotic limiting factor. • suggest one biotic and one abiotic recommendation that could slow the spread of hydrilla

Which of the following is a testable hypotheses?

Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these