Which of the following is true about compounds
a) they are groups of animals
b) they are in a fixed ratios
c) they have the same function
d) they are called "pathogens"

They are in a fixed ratio

Explanation:

science-ocean floors and habitats study guide by volleyballqueen3817 a major advance in ocean-floor mapping. list four sections of the ocean floor. algae that use sunlight to produce their own food through photosynthesis. all of the feeding relationships that exist in a habitat. drying out, predators, find food.