Not sure this is a question but my answer would be a semi-permeable membrane? Hope this helps! <3
Answer:
Spider has a circulatory system
Answer:
B. increase biodiversity
It can't increase the biodiversity it can effect the biodiversity
I believe that the answer is D. lichens growing on cooled lava. Hope it helps.
The best answer would probably be observation because a hypothesis and theory is not always reliable. an observation describes what IS happening during the experiment.
