Ancient organism remains, fossil layers, similarities among organisms alive today, similarities in DNA and similarities of embryos.
The statement that best compares gymnosperms and angiosperms is : A. Both reproduce sexually, but gymnosperms contain only xylem and angiosperms contain xylem and phloem.
Gymnosperms produce exposed seeds, not enclosed in fruit whilst Angiosperms have Fruits, flowers, and endosperms as defining characteristics.
Answer: The answer is Echinoderms
Explanation: The skin of most species is covered by spines, “warts,” or other projections.
The big p is dominate and the little p is recessive. I don't know if this is what you are looking for because I need a little more information.
This question is very broad, so one possible answer that's is also very broad is that they can form many other chemical compounds.
