Question

select two examples that demonstrate evidence for biological adaptation occurring in a population. penguins learning to huddle together for warmth. darker colored moths surviving more often because they are harder to find for predators. a random mutation that allows bacteria to be more resistant to antibiotics. bacteria start growing on top of other bacteria because there is no more room on an agar plate.

Explanation:

Biological adaptation is a change in a population over time that increases its fitness in its environment. Penguins huddling is a learned behavior, not a genetic - based adaptation. Darker - colored moths surviving more due to camouflage is an example of natural selection leading to adaptation. A random mutation in bacteria for antibiotic resistance is also an adaptation as it helps bacteria survive in the presence of antibiotics. Bacteria growing on top of each other due to space constraints is a physical response, not an adaptation.

Answer:

B. Darker colored moths surviving more often because they are harder to find for predators
C. A random mutation that allows bacteria to be more resistant to antibiotics