Which of what
there isnt any thing to match
Populations
communities
ecosystem
biosphere
Answer:
hello there
Explanation:
Tertiary structure is the three-dimensional structure of a protein. The tertiary structure is obtained when a protein's secondary structure is folded into a globular form. Two main types of secondary structures that proteins can have is an alpha helix and a beta-sheet.
Answer:
The answer is letter a, chemical evolution.
Explanation:
Chemical Evolution <u>is one of the processes that helps explain the origin of life. It states that the first living cell on earth started from non-living matters that were not capable of reproducing.</u>
This <em>non-living matter </em>could be both <em>organic and inorganic molecules.</em> It is said that the structures of these molecules changed over time (example is protein breaking down when exposed to too much heat). When these systems become complex, they form new structures (this is known as repetitive reproduction). This then gives rise to bacteria.
Thus, this explains the answer.
The air that we breathe is mostly made up of nitrogen (78%). 21% is oxygen which is needed for animals and humans in respiration and 0.03% is carbon dioxide which is needed for plants to make energy in a process called photosynthesis. The bit that is left is made up of rare gases like helium and argon and methane.
