Conlan wants to answer the question, “does phosphorus affect tomato fruit production? ” which statement represents a hypothesis that he can test to answer his question?
if phosphorus affects tomato fruit production, then tomatoes that are fertilized with phosphorus will have larger leaves.
if phosphorus affects tomato fruit production, then phosphorus should be added to the soil during planting.
if phosphorus affects tomato fruit production, then adding phosphorus to the soil will make tomatoes taste better.
if phosphorus affects tomato fruit production, then plants that are fertilized with phosphorus will produce more tomatoes.

Which of the following statements most accurately describes convergent evolution? the process in which two similar species evolve separately from each other and share similar characteristics the process in which a single species evolves into two or more new species the process in which two entirely different species evolve in response to each other the process in which two different species evolve separately from each other but still share similar characteristics

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.

Ascientist wanted to formulate a pill to attack a specific type of bacteria that infects the throat. which biological component would be best to use as a model for the pill's function? bacteriocytes phagocytes complement antibodies