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.
Explanation:
Mosses go through sporophyte and gametophyte stages in their life cycle. ... However, mosses are nonvascular while ferns are vascular. Gymnosperms and angiosperms are both vascular, seed-bearing plants. However, gymnosperms release their seeds in cones (like pinecones) while angiosperms release their seeds through flowers.
The
correct answer is the gastrocnemius muscle.
<span>The
gastrocnemius muscle is a muscle located in the back part of the lower leg of
humans. The gastrocnemius together with the soleus muscle forms half of the
calf muscle with the function is plantar flexing the foot at the ankle joint
and flexing the leg at the knee joint.</span>
The first step of aerobic cellular respiration to evolve is
glycolysis, the evidence that there is to support this is with through the
cytosol of the cytoplasm in which this stage takes place as this is the process
where glucose has been split in two molecules by the enzymes.
This is in accordance to the number of calories each gram of macronutrient has. 1 gram of carbohydrates contains 4 calories; 1 gram of protein contains 4 calories; and 1 gram of fat contains 9 calories; (nice to know: 1 gram of alcohol contains 7 calories). In this case, the sandwich contains 460 wherein there is 6 grams of saturated fat. This 6 grams of saturated fat is equal to 54 calories. Converting that into percentage: (54 calories of fat)/(460 total calories) x 100 = 11.74% or roughly 12% of calories are from saturated fat.