A niche is the role an animal plays in its environment. A giraffes niche would be their long necks. With their necks they can reach up higher and eat where no other animals can eat. Giraffes don't have to compete with other animals for their food so they live peacefully with other animals.
The answer is population ecology. The purpose of this field is to research how
a particular group interrelates with its surroundings to gauge how long it can
continue living in a certain place. It
is also used in the study of population dynamics.
Ash can be harmful to an environment. It mostly depends on how much ash there is though. If a volcano erupted such as Mt. St. Helen's then yes that can harm an environment. Ash can cover the sky and block out the sun for days before disappearing and that will affect the life of plants
Answer:
The process that does not require oxygen is fermentation.
Explanation:
Fermentation is an alternative route of cellular respiration for obtaining energy, in the absence of oxygen. In aerobic respiration, oxygen is the acceptor of electrons from NADH but, in anaerobic respiration, the electron acceptor is an organic compound.
The fermentation process does not occur in the mitochondria nor does it involve the electron transport chain, and has a low energy yield at the end of the process.
With respect to the other options:
- <em>The </em><em><u>electron transport chain</u></em><em> and the </em><em><u>Krebs cycle</u></em><em> occur in the presence of oxygen.</em>
