Either you have made error in your experiment or you might have wrong hypothesis.
Answer:
c. a trait with four alleles
Explanation:
Answer: biomarker: A substance used as an indicator of a biological state, most commonly disease.
trace fossil: A type of fossil reflecting the reworking of sediments and hard substrates by organisms including structures like burrows, trails, and impressions.
fossil record: All discovered and undiscovered fossils and their placement in rock formations and sedimentary layers.
strata: Layers of sedimentary rock.
fossiliferous: Containing fossils.
Explanation: hope this is what you mean if not ill try again
Answer:
A) mutualism
Explanation:
Both species cows and bacteria get benefits in this association.
