<span>The purpose of the scientific method is to clearly do an experiment by a process of steps helping you keep track, and correct any mistakes.</span>
Answer:
The scientist done wrong by inactivating chlorophyll A and PS I.
Explanation:
The scientist done wrong by inactivate chlorophyll A and PS I. If he wants to study electron transport chain in photosynthesis, he needs chlorophyll A and PS I for that because the central role of chlorophyll A is to donate electron in the electron transport chain while on the other hand, the primary function of the photosystem I is the NADPH synthesis, where it receives the electrons for PS II.
Answer: The blue whale is the heaviest animal ever known to have existed.
...
Heaviest living animals.
Rank 1
Animal Blue whale
Average mass [tonnes] 110
Maximum mass [tonnes] 190
Average total length [m (ft)] 24 (79)
HOPE THIS HELPS
