Rebecca wants to see if water plants with salt water affects plants. she waters 3 sunflowers with varying amounts of salt water, plant A get regular water plant B get 25% salt water and plant C 50% salt water . During the experiment she records the number of petals each flower has. Which one is independent variable for my line graph

Which system revise and send electrical signals throughout the body

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.

Ateam from new york presbyterian hospital is conducting a study about a recent increase in cases involving both excess sweating and kidney stones. what would the team need before it draws a conclusion about the cases? medications that are specifically designed to treat the sickness machines that are built to process blood and reduce symptoms until patients are healthy again data that profile the various patients who report these symptoms proof that the excess sweating is related to the excessive kidney stones