Gene–environment interaction or genotype–environment is when two different genotypes respond to environmental variation in different ways. A norm of reaction is a graph that shows the relationship between genes and environmental factors when phenotypic differences are continuous.
Answer I think the number 1
Diversification Rates Increase With Population Size and Resource Concentration in an Unstructured Habitat
Distance/Time = 120 Km/2 hours =120/2 Km per hour or for short 60 Km per hour