Which of the following organisms is a third-order consumer in the food web shown above? A. duck B. grasshopper C. grass D. snake

SNAKE

Explanation:

You haven't shown a food web, but I would assume that the snake would be the tertiary consumer because the grass is a producer, the duck would most likely be a secondary consumer and eat the grasshopper, which is a primary consumer.

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.

i might be wrong but i think its a. let me know if i’m right and have a good rest of your day!