1. Suppose you design an experiment to study the amount of growth shown by plants exposed to different types of fertilizer. You use 3 different fertilizer brands on tomato plants that you keep in individually enclosed chambers
to collect the oxygen they each produce.
a. State the null hypothesis of this experiment.
b. Identify the following variables:
independent variable
dependent variable
c. Describe an appropriate control treatment for this experiment.

Plants are used for so many things. in your house alone, you can probably look around you and see where plants have been used. for this project, you will identify various uses of plants in your home. directions make a list of objects, products, and any other items around your house where plants were involved in the production of the item. you should have a list of at least twenty items. then respond to the following questions: note: your list of objects and the answers following should be at least 200 words in length. what if plants no longer existed on earth? how would your life be different?

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

Complete the statements to identify the first two steps of meiosis i. (1 ) the first and longest step of meiosis i is called i. (2)the second step of meiosis i is called i.