Answer: A. True
Explanation:
The abiotic environment can cause major changes in ecosystem functions and activities, that are independent of biotic changes. The fact that biotic components are composed of abiotic components further suggests the need to pay more attention to the role of abiotic factors in organism's survival.
Answer:
Functional groups are groups of atoms that occur within organic molecules and confer specific chemical properties to those molecules. When functional groups are shown, the organic molecule is sometimes denoted as “R.” For example, ethanol is typically drawn like this:
In order to condense the structure and focus on the hydroxyl group (the oxygen and hydrogen bound to the second carbon), everything besides the hydroxyl group would replaced with an R, as follows:
Explanation:
The deep sea vent organisms or benthic organisms normally live in dark conditions because of no penetration of sunlight. These organisms in order to colonize ocean surface must develop photo sensory receptors and should adapt to the light conditions along with variation in temperatures and pressure in ocean currents.