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:
Option (A) and (C).
Explanation:
Global warming may be defined as the increase in the average earth's temperature. The global warming occurs due to human activities like deforestation and urbanization.
The green houses gases are responsible for increase in the global warming. Gases like water vapor, methane and carbon dioxide can trap the heat and causes global warming. The green house effect is directly proportional to the amount of green house gasses as more heat are trapped by green house gases.
Thus, the correct answer is option (A) and (C).
Every other organism other than bacteria or archae is eukaryotic.
(eukaryotic organisms are organisms whose cells have a nucleus, and prokaryotic organisms are organisms whose cells DON'T have a nucleus.)