Pseudo vacuoles are not true organelles since they are just air bubbles which do not possess tonoplast and cell sap like real vacuoles. But they do help by increasing buoyancy of cells.
Answer:The 3rd one
Explanation:
“Crust” describes the outermost shell of a terrestrial planet. Earth's crust is generally divided into older, thicker continental crust and younger, denser oceanic crust. The dynamic geology of Earth's crust is informed by plate tectonics.
my·o·fi·bril
Dictionary result for myofibril
/ˌmīōˈfībrəl,-ˈfib-/
noun
noun: myofibril; plural noun: myofibrils
any of the elongated contractile threads found in striated muscle cells.