One of the functions of pelvic spines in the ocean is to protect stickleback from larger fish predators. Based on this knowledge, which statement might be a possible explanation for the differences in pelvic spines between Bear Paw Lake and Frog Lake sticklebacks? Question 7 options:

Frog Lake has no native predatory fishes such as trout.

Frog Lake likely has native predatory fishes, but they do not prey on stickleback fish.

The food webs that characterize organisms in Bear Paw Lake and Frog Lake are virtually identical.

Bear Paw Lake has no native predatory fishes.