All animals and plants are made of cells. Animal cells and plant cells have features in common, such as a nucleus, cytoplasm, cell membrane, mitochondria and ribosomes. Plant cells also have a cell wall, and often have chloroplasts and a permanent vacuole.
Asker's rating. Report Abuse. You can stay outside for up to 2 years with a re-entry permit ...but you must keep a presence here ..home, bank account ..etc but for stays of over 6 months its best to get one a green card is for living here ...if you are not doing that you eill lose it. David Â· 6 years ago. Thumbs up. 2.
Answer: Most U.S. green cards expire every ten years. Itâs best to file Form I-90 for a green card renewal 5-6 months before the expiration date on the green card. If that date has passed, you will not lose your permanent residence. But you should apply for a green card renewal as soon as possible.