Which features of companion cells are essential to their function?
1) They are connected to the sieve tube elements by plasmodesmata.
2) They have a thicker cell wall than a sieve tube element.
3) They contain a nucleus and mitochondria.
1 )
1 and 2
1 and 3
3 )
1 only
4 )
2 and 3
تحلیل ویدئویی تست
منتظریم اولین نفر تحلیلش کنه!
پرسش و پاسخ های مشابه
سوال کنید یا به سوالات دیگران پاسخ دهید ...