Answer:
That is administered and controlled
Step-by-step explanation:
A variable is the condition or a product that may vary without the influence of any investigator. Such variables can be found abundantly in our daily lives, ranging from air to sunlight. Controlling such variables ensures the limitation of their influence on the outcome of an experiment. In connection to this experiment, the variables that are controlled are the mineral content in the water, the amount of bacteria food, the amount of light and the the constant temperature of 20 degrees C.
If not administered or these variables controlled, the experiment would not clearly explain the impact of caffeine on the heart beat of the water fleas as other variables may have influenced it. Thus variables are controlled to study the singular impact of any agent or effect.
Cells break into 2’s and keep breaking apart
Answer:
Fruit
Explanation:
Often plants will store food very close to their seeds, this food storage is called a fruit. A fruit is a form of plant food storage that serves two purposes for the plant. It attracts animals to eat the fruit and spread the seeds contained in the fruit. The fruit also provides a source of food for the growing seeds.
Endoplasmic reticulum is the answer.
