Answer:
spider with second option (spiders have an open circulatory system.)
earthworm with first option
starfish with forth option
Explanation:
It consists of one specie instead of many specie
Answer: C polluted water and soil can cause many deseases and side effect towards humans
Answer:
true.
Explanation:
I have a freind that works at nasa and she said it is true.
My Answer: DNA cloning.
Hope I helped! :D