Alex wants to grow some flowers for his wife, but isn't sure which flowers will grow best in the soil in their yard. He goes to Lowe's and buys hydrangeas, roses, daisies, and tulips. He sections off the soil into four equal parts and plants each type of flower in their own section. All flowers receive the same amount of sunlight throughout the day and he waters them all the same amount and at the same time daily. He records the growth of the flowers once a week for a month.

This question is incomplete; the question is asking to identify variables such as the DV, IV, Constants etc

Independent variable (IV): Type of flowers

Dependent variable (DV): Growth of flowers

Constants: the same amount of sunlight, same amount of water

Explanation:

The independent variable is the variable that an experimeter changes or manipulates deliberately in order to bring about an effect in another variable. In this experiment, the TYPE OF FLOWER on each soil is changed by Alex, hence, it is the independent variable.

Dependent variable is the variable that is being measured in the experiment. It is the variable that responds to the changes made to the independent variable. In this case, the dependent variable is the GROWTH OF THE FLOWERS measured.

Constansts or control variable is the variable that the experimenter keeps constant or unchanged throughout the experiment in order to maintain the outcome of the experiment. In this case, the constants are the same amount of light, same amount of water

prokaryotic cells do not have a nucleus in which the dna is stored in, it floats freely inside the cell.

eukaryote cells do have a nucleus in which the dna is stored in.

this protocol provides a detailed procedure for co-immunoprecipitation (co-ip) to identify protein–protein interactions.