When particles spread out it is called diffusion.
Answer:
Lymphatic vessels are part of the lymphatic system.
Explanation:
They are similar to blood vessels that are found in the cardiovascular system, but they carry lymph instead of blood.
I believe the answer is angiosperms
Answer:
1. hydrogen; 2
2. it means two strands of DNA twisted around each other like a winding staircase
One reason is for an animal to come along and eat it's fruit, so that it can excrete the seeds somewhere else allowing that type of flower/plant to spread over distances :)