Once a hypothesis is tested and confirmed, and then tested again and confirmed again by many others, it may provide the basis for, or become a part of, a scientific theory.
Answer:
Ask a Question
Do Background Research
Construct a Hypothesis
Analyze Your Data and Draw a Conclusion
Communicate Your Results
Explanation:
Answer:
plants protect soil from being eroded by locking the soil in place.
Explanation:
dirt can rock can not move when there is plant life in the way. refer to the dustbowl
For letter a, it is not advised to cut towards yourself. Although you might not harm the people surrounding you, you can't afford to risk yourself. For letter b, do not apply so much force. Just apply the minimal force, just strong enough to cut through. For letter c, you have to wear the goggles all the time for safety purposes. For letter d, I think this is the answer. When you only want to cut the skin, it would be better to use scissors.
Answer:
Interaction between hydrophobic (nonpolar) amino acid side chains is due to hydrophobic interactions.
Repulsion between negatively charged backbone of DNA double helix is due to electrostatic repulsion forces.
Interaction between water and carbonyl oxygen of guanine is due hydrogen bonding
Explanation:
The hydrophobic effect refers to the tendency of non-polar substances forms aggregates in an aqueous solutions in order to avoid interactions with water molecules. This results in a favorable entropy increase.
For non-polar amino acids, hydrophobic interactions are important in stabilizing their structure wherein they are densely packed within the core of a protein while those with with polar groups are found in the exterior.
The phosphate backbone of DNA is negatively charged. Since like charges repel, therefore, electrostatic repulsion forces of the ions are responsible the repulsion of the backbone DNA double helix.
Hydrogen bonds are formed between electronegative oxygen atoms and hydrogen atoms of neighboring molecules due to the partial negative and positive charges on each of the atoms.
This hydrogen bonding is responsible for the interaction between water and carbonyl oxygen of guanine as the hydrogen atoms of the water molecules are attracted to the oxygen atoms of the guanine molecules due to the partial charges on each of the atoms.
