Question

The number of is a defining characteristic of the two types of angiosperms.

Answer 1

Answer:

Number of cotyledons -- The number of cotyledons found in the embryo is the actual basis for distinguishing the two classes of angiosperms, and is the source of the names Monocotyledonae ("one cotyledon") and Dicotyledonae ("two cotyledons"). The cotyledons are the "seed leaves" produced by the embryo.

Explanation:

Answer 2

Answer:

Two types of angiosperms are MONOCOTS and DICOTS

Explanation:

The number of petals in monocots are in multiple of three ( i.e 3,6 or 9)

while that in dicots are in multiple of four or five ( i.e 4,5,8 or 10)