I have never heard of the four phases of research, but I know that the scientific method can be summarized in four steps.
1. Observe something in nature.
2. Make a hypothesis (prediction) based on that observation.
3. Design and undergo and experiment to test the validity of your hypothesis.
4. Draw a conclusion about your hypothesis based on the results of your experiment.
Plants use a process called photosynthesis to make food. During photosynthesis, plants trap light energy with their leaves. Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose.
Starch is stored in the seeds and other plant parts as a food source.
Answer:
Explanation:
The distance to the Sun is 5,890,000,000,000. We need to write this distance in km.
A number can be written as 
in scientific notation where x is a real no and y is any integer.
There are 10 zeros in the given number and also there are 12 digits after. It would mean that,
So, the distance in scientific notation is :
the citric acid cycle, the electron transport chain, and glycolysis are the 3 steps of respiration.
A glucose molecule gradually decomposes into carbon dioxide and water during cellular respiration. But far more ATP is later created through a procedure known as oxidative phosphorylation. A gradient is created as protons are pumped out of the matrix as electrons move down the chain, releasing energy and form ATP as they do so. Oxygen absorbs electrons and takes them at the conclusion of the electron transport chain.
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<span>Chemical bonds hold atoms
together to form compounds. The answer is letter D. Chemical bonds may result
through the sharing of electrons as in covalent bonds or from the electrostatic
force of attraction between atoms with opposite charges as in ionic bond. There
are other bonds that exist to other compounds such as metallic bond and
hydrogen bonding. Also, the type of bonding will help us determine what will be
the phase of the compound. Just like in liquids, attractive forces are caused by
van der Waals bonds.</span>
