Primary succession occurs<span> in essentially lifeless areas—regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. Secondary </span>succession occurs<span> in areas where a community that previously existed </span>
Answer:
no
Explanation:
tracheids doesn't have protoplasts
Answer:
carrier proteins (embedded in the plasma membrane)
Go on Google you will get a good explanation.
