Which causes genetic variations and can result in different alleles? predation rate
random mutations
competition
environmental changes

Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

Definitions:

Predation rate

is the annual mortality within. a population directly attributable to predation; it represents the level of. successful predator attacks that the animals are unable to control after they. have implemented their antipredator  strategies. Predation risk, on the.

random mutations:

What is commonly called "random mutation" does not in fact occur in a mathematically random pattern. The process of genetic mutation is extremely complex, with multiple pathways, involving more than one system. Current research suggests most spontaneous mutations occur as errors in the repair process for damaged DNA.

competition:

the activity or condition of competing.

environmental changes:

Examples of these global environmental changes include climate change, freshwater shortages, loss of biodiversity (with consequent changes to functioning of ecosystems), and exhaustion of fisheries.

B random mutations

Explanation: Because I took the test