Answer:
multiple types of cells that are connected make up all living organisms
Explanation:
since biology explains the definition of cells, being the structural unit of all living organisms, it qualifies the statement that multiple types of cells connect to make up living organisms.
The object will continue to move north because there is no opposing force form the south and the other forces canceled each other out
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.
