Cause mammals are the only species that are well developed before birth unlike marsupial and monotremes
Answer:
C - Detritivore
Explanation:
A carnivore is a meat eater, an omnivore is a plant and meat eater, and a herbivore is a plant eater, which leaves C.
It's chemoautotrophs because cyanobacteria can be mixotrophic if needed and they are classified as algae.