Question

what is an example of environmental factors affecting natural selection?
a. available food sources
b. genetic code
c. fossil records
d. rock formations

Explanation:

Natural selection is influenced by environmental factors that impact survival and reproduction. Available food sources are an environmental factor. Genetic code is an internal factor of organisms, fossil records are for studying evolution history not a direct - acting environmental factor in natural selection, and rock formations are less directly related to natural selection compared to food sources.

Answer:

A. Available food sources