Which members of an ecosystem are part of the energy flow. A: Only livings things

B only non living things C Both living and non living things

Explain the source of radioactivity in uranium in earth’s crust by which it produces nuclear radiation

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water

What is the function of the root cap? a. extra-absorbent cells in the root cap absorb more water and nutrients b. protect the meristematic area of the stem c. contains sensors for sunlight d. increases surface area of the root