Hey!
Your answer is going to be A.) How people experience color varies.
You can't test how different people see the same colors. Everyone will see something different.
Hope this helped! :)
The answer is option D "test the effect of cyanide on algae." Ecologist are researchers who study how organisms interact with their environment so in this case they are testing how algae reacts to cyanide. In another example they will be testing how a ape reacts to having a different fruit tree in their habitat. It wouldn't be option A, B, and C because you have to remember the job of a ecologist and the options are not jobs of one.
Hope this helps.
This would be enzymes made of proteins.
If you appreciated my answer, please brainliest me!
Answer:
I think Galaxy hope this help in anyway!
Explanation:
<span>Protected left turns are areas for turning that are controlled by a traffic signal or traffic sign. The traffic sign may be light.</span>
A green light means you may turn left. while <span>a red light means you must stop. Opposite to this, non protected left turns are not controlled by traffic sign.
</span>
