A teacher looks at his students test to see which topics his students are still struggling with. What is this a Observational Study or Survey or Experiment?

Why was mendel's work not accepted at the time? o a. his results were false. o b. he did not repeat his experiments. o c. he did not have any data. o d. his results were surprising,

Write the balanced chemical equation forphotosynthesis.

What are levels of ecology and how can we remember them