<span>The modification of a stem that provides storage is C. the corm. A corm is this small organ found in the stem of a plant that provides storage of resources for the plant to survive during harsh winter times or during hot summer days. Spine is what keeps the plant upright, whereas a twiner is a type of a plant that is also known as vine, as it is a climbing plant.</span>
Answer:
reflected
Explanation:
Whatever color your eye sees is the reflected light. So all colors absorbed.
Answer:
The answer is B. Some organic molecules, including amino acids, could have been produced from chemical reactions on early Earth.
Explanation:
Miller-Urey Experiment:
The Miller-Urey experiment was an attempt to explain the origin of life on Earth. Miller-Urey simulated the primordial soup i.e. the environment of primitive Earth to prove the spontaneous generation of organic molecules. The conditions they introduced included:
- A methane-ammonia-hydrogen and water mixture that exactly simulated the primordial soup.
- A spark of 70,000 volts that simulated lightening.
- A temperature of 800 degree Celsius.
Observations:
- After running for 18 days, the final solution was examined for presence of organic molecules.
- Miller-Urey observed that most of the methane and ammonia had been consumed and the mixture contained carbon monoxide and nitrogen.
- The solution further contained 25 amino acids (mainly, glycine, alanine and aspartic acid)
, several fatty acids
, hydroxy acids and amide products.
The experiment concluded that simple organic compounds such as amino acids could have been formed through spontaneous generation under the Earth's primitive environmental conditions.
<span>The direction the nerve impulse travels relative to the central nervous system.
I hope this helps!</span>