The answer is D hope this helps
Answer:
2nd one is the most realistic of what occurs in ecosyystems
Serious systemic fungal infections and parasitic infections usually only develop in individuals who are immunocompromised. These individuals have a weak immune system. The body cannot respond quickly to infections since their immunity is not very well developed.
This is possible by having different stem cells for different types of cells which then have different genes activated to make cells different
Water, light energy, and carbon dioxide
