Get the answers you need from a community of experts on IDNLearn.com. Find the answers you need quickly and accurately with help from our knowledgeable and dedicated community members.
Answer: Whereas lower vascular plants, such as club mosses and ferns, are mostly homosporous (produce only one type of spore), all seed plants, or spermatophytes, are heterosporous. They form two types of spores: megaspores (female) and microspores (male).