Glycolysis, Krebs cycle, electron transport chain
Answer:
Explanation:
Bonds form when atoms share or transfer valence electrons. In a covalent bond, two atoms share one or more electrons. Water is a polar molecule. A hydrogen bond is a relatively weak bond between two oppositely partially charged sides of two or more molecules.
Natural selection is a process by which organisms that are better adapted to their environment tend to D-survive.
Rationale behind not choosing other options:
A. Better adaptation to an environment doesn't lead to an increase in the size of the organisms. The organisms rather become sturdy and efficient at perform optimally as per the requirement in the environment for their survival.
B. Migration takes place to minimize competition for food, shelter, and space in an environment or a habitat.
C. Organisms that evolve new traits tend to better survive in an environment and natural selection favors such organisms over the inefficient ones.
Answer:
Mutation
Explanation:
A mutation is a change in the sequence of genetic letters, called bases, within a molecule of DNA.
Answer:
Breakdown of Pyruvate
After glycolysis, pyruvate is converted into acetyl CoA in order to enter the citric acid cycle.
Explanation:
