It can be observed and tested
Answer:
Option (A).
Explanation:
Gym or exercise is important for all the individual to stay fit and healthy. Regular exercises in gym reduce the chances of heart attack and also control the obesity problem.
The gym should be located in well developed area free from any pollution and safety is the most important in any gym. The equipment used in gym must be of best quality and the trainers should explain each and every exercise necessary for the individual. The room temperature should be well maintained and properly ventilated.
Thus, the correct answer is option (A).
Answer:
Answer B. Endosymbiosis
Explanation:
Early protists were first eukaryotic organisms and had several membrane bound organelles. The anaerobic protists evolved by acquiring purple bacteria. The purple bacteria have the ability to carry out aerobic cellular respiration. The endosymbiont transformed into mitochondria in due course of evolution. Similarly, the photosynthesizing protists were evolved by endosymbiosis of cyanobacteria which in turn was transformed into chloroplast during further evolution.
It’s C the answer is C!!!
