Answer:
sexual reproduction between two individuals from different continents
<u>Ground tissue</u>, which is also known as cortex, is the main plant tissue shown in green in the image.
Membrane proteins can function as enzymes to speed up chemical reactions, act as receptors for specific molecules, or transport materials across the cell membrane. Carbohydrates, or sugars, are sometimes found attached to proteins or lipids on the outside of a cell membrane.