Identify a structure in organisms that do not have kidneys that is adapted to regulate water balance

Malphigian tubules are specialized structures in insects and spiders that absorb water and ions then pass it to the gut. Antennal glands are found in crustaceans like crabs and shrimps. The antennal gland functions in reabsorption of substances, secretion, and removal through urine.

The scientific method is a series of steps followed by scientific investigators to answer specific questions about the natural world. it involves making observations, formulating a hypothesis, and conducting scientific experiments.the steps of the scientific method are •observation-the first step of the scientific method involves making an observation about something that interests you•question-once you've made your observation, you must formulate a question about what you have observed. •hypothesis-once you've made your observation, you must formulate a question about what you have observed. •experiment-once you've developed a hypothesis, you must design and conduct an experiment that will test it.•results-the results are where you report what happened in the experiment. •conclusion-the final step of the scientific method is developing a conclusion.i hope that this you : )

Ithink that b is correct but just in case wait to see if someone else answers