Jawapan

  • Pengguna Brainly
2016-03-16T19:53:46+08:00
Phagocytosis.................
1 5 1
2016-03-16T20:06:11+08:00
Excretion is the only effective way invertebrates fight disease. Unlike vertebrates who have immune systems that work daily to fight off bacteria or other harmful organisms, invertebrates only have the capacity to excrete and cleanse their body of harmful materials.