Answer to this question is b
1 Weathering
2 Fertilizer
Soil
Direct Runoff
3 Excretion and Decomposition
4 Dissolved Phosphates
5 Geologic uplift
The two types of of pure substances are elements and compounds.
Answer:
B- They recycle mass back into the ecosystem
"When decomposers eat off of dead plants and animals, they are recycling it and turning it into nutrients for other plants. It’s a continuous cycle that prevents the build up of waste."
Explanation:
Answer:
Everything at some point belonged to a common ancestor, but these four species are considered to be like this because of similar ancestral traits that have been passed on to generations such a homologous pairs, vestigial structures, they are all mammals, similar amino acid sequences, vertebraes, etc.