What body systems are involved in excretion of wastes?

Imagine a rocket launching from earth and travelling to the moon. in which order would the rocket pass through the layers of the atmosphere? thermosphere, mesosphere, stratosphere, troposphere troposphere, mesosphere, stratosphere, troposphere thermosphere, stratosphere, mesosphere, troposphere troposphere, stratosphere, mesosphere, thermosphere

Cell specialization occurs by the process ofa. reproductionb. differentiationc. maturationd. growth

Diagram of the evolution of land plants?