Which situation could cause an ecosystem to lose its equilibrium? A. Existence of a top predator species
B. Competition among species for food
O C. Loss of a keystone species
D. Interdependence among species

There are many ways that an ecosystem can lose it's equilibrium or balance. A few potential causes can be, the introduction of a new species, the sudden death of some species, and natural hazards (weather related or seismic changes).

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image result for describe the various types of gene mutationsghr.nlm.nih.gov

the types of mutations include: missense mutation: this type of mutation is a change in one dna base pair that results in the substitution of one amino acid for another in the protein made by a gene. nonsense mutation: a nonsense mutation is also a change in one dna base pair.

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