Natalie is watering three sunflower plants with salt water. Each plant receives a different concentration of salt solution. A fourth plant receives pure water. After a two-week period, the height is measured. What would be the responding variable?

How do environmental factors influence genetic traits? a. environmental factors determine all genetic traits. b. environmental factors can determine if a genetic trait becomes a health issue. c. environmental factors are determined by genetic traits. d. environmental factors have no influence on genetic traits. select the best answer from the choices provided

How is the male reproductive system different from other body systems? it isn’t necessary to vital signs. it monitors other body systems, and adjusts if necessary. it transports items from one system to another. it is the only system that produces hormones in the male.

Which type of organism is missing from the food web seen in the illustration? primary consumers decomposers primary producers secondary consumers