Scientists use observations and data to form and test

A scientist gathers observation and data to create an experiment.

Scientists use data to collect information to help support their hypothesis ( educated guess ) and to make detailed reportings

Data is observations made during an experiment and can be collected by practicals, interviews, newspapers etc

Observations are crucial in supporting your point ( hypothesis )

Data can be collected by two primary branches which is primary and secondary sources

Data can either be:

Qualitative ( descriptive )
e.g the birds feathers were yellow

Quantitative ( includes measurements )
e.g My Keira is 234m high

No that answer is wrong. you have written the function of mitochondria in chloroplast and function of chloroplast in mitochondria.

According to edgenuity, the answer is c.