C. The sun because the sun is what gives energy to the plants and so on. Hope its not to late :)
Specialised cells mean they have one specific job, for example cells in the alveoli (in the lungs) would be specialised to transfer oxygen into the blood. An unspecialised cell would be an embryonic stem cell which can become any cell to suit the needs of the organism, which is how a small cluster of cells in a zygote becomes a full human with all the organs and such.
So you didn’t finish your question.
Answer:
Persistence- the fact of continuing in an opinion or course of action in spite of difficulty or opposition
Climatologic- the scientific studies of climate
Looking at the sky
Answer:
Putative fossilized microorganisms
Explanation:
they were found in hydrothermal vent precipitates
Hope this helped a little!