Plants that use photosynthesis would
Answer:
Oral poliovirus vaccine or Sabin vaccine, named for its inventor American physician and microbiologist Albert Sabin, was developed. OPV contains live attenuated (weakened) virus and is given orally.
Parasite I think because it is using other plants for nutrients
<span>maintains a constant INTERNAL environment
so other options included internal variable and external environment. but its internal and environment</span>