“gymnosperms”造句，怎麼用gymnosperms造句

5、He also observed that gymnosperm ovules were not enclosed in an ovary wall, leading to the establishment of one of the basic differences between angiosperms and gymnosperms.

7、There are 239 species under 88 families, in which 4 species are pteridophyta, 6 species are gymnosperms and 229 species are angiosperms. They can kill insects.

1、These genes are characterized by several distinct motifs and exist in ferns, gymnosperms, and angiosperms.

3、They include one fungus, one fern, 5 gymnosperms and 153 angiosperms.

6、Based on this database, we chose the part of gymnosperms and gave a discussion to the features of its chromosomes' evolution and variation.

2、Most angiosperm ovules possess two integuments, while gymnosperms usually have only one.

8、We observed and studied the forage resources to Hainan and its neighboring islets, recorded 1064 species forage plants, of which 6 seaweeds, 11 ferns, 5 gymnosperms and 1042 angiosperms.

4、Modern gymnosperms such as ferns and gingko are typically not very nutritious and are tougher to chew than angiosperms.