Cells are the building blocks of life on Earth. True or false

Does mitochondria still meet the definition of a eukaryote why or why not?

Kinases add - groups to other enzymes. this activities some enzyme while inhibiting other

The earths core is made up mainly of what 2 substances? 2. like an egg, earth has a core, a layer surrounding the core, and a thin, hard outer layer. which layers of the earth match the layers of an egg?