<span>Independent variable: Time plants are watered (ex. 8am, 12pm, 4pm, 8pm, 12am)
Dependent variable: growth of the plant
Controlled variable: 1. same type plants, 2. same amount of sunlight, 3. same type of dirt, 4. same type of water, 5. same amount of water (each are self explanatory of how to control)</span>
The next step would be to follow the AED prompts.
An AED or Automated External Defibrillator refers to a lightweight, small apparatus, which evaluates an individual's heart rhythm and can determine the irregular heart rhythms, like VF (ventricular fibrillation) or VT (ventricular tachycardia), also called Sudden Cardiac Arrest.
Automated external defibrillators can assist in saving many lives at the time of sudden cardiac arrest. However, even after training, memorizing the steps to use an AED in the right manner can be tough.
Answer:
Visceral pleura
Explanation:
The pleura forms the main component of the respiratory system whose main objective is to carry out the process of respiration without any difficulty and also to reduce friction during the time of breathing.
It is basically comprised of two types namely-
(1) The Parietal pleura
(2) The Visceral pleura
The visceral pleura can be usually referred to as one of the important and fine membranes that surround the surface of the lungs. It is separated by the parietal pleura due to the presence of a pleural fluid between them.
On the other hand, the parietal pleura is responsible for surrounding the internal portion of the chest cavity and is comparatively thicker than the visceral pleura.
Answer:
See below.
Explanation:
A star's energy comes from the combining of light elements into heavier elements in a process known as fusion, or "nuclear burning". It is generally believed that most of the elements in the universe heavier than helium are created, or synthesized, in stars when lighter nuclei fuse to make heavier nuclei. The process is called nucleosynthesis.
Our Sun is currently burning, or fusing, hydrogen to helium. This is the process that occurs during most of a star's lifetime. After the hydrogen in the star's core is exhausted, the star can burn helium to form progressively heavier elements, carbon and oxygen and so on, until iron and nickel are formed. Up to this point the process releases energy. <u>The formation of elements heavier than iron and nickel requires the input of energy. </u>Supernova explosions result when the cores of massive stars have exhausted their fuel supplies and burned everything into iron and nickel. The nuclei with mass heavier than nickel are thought to be formed during these explosions.
‘Heart attack’ is the correct answer. :D
