Samantha believes that flowering plants produce more flowers when they are given fertilizer. She designs an experiment in which three rose bushes are each given 100 grams of a different type of fertilizer and a fourth rosebush is not given fertilizer. She observes the plants for four weeks and records the number of roses each bush produces. What element of experimental design is missing from Samantha’s experiment?

1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.

Oh dog