The correct answer is: d. it contains many light-sensing columns called ommatidia
Ommatidia are units that form compound eyes of arthropods such as insects, crustaceans and millipedes (these are invertebrates) and make them very sensitive to motion. Ommatidia are composed of photoreceptor cells (visual detection) surrounded by support cells and pigment cells.
The eyes of vertebrates are more complex showing that progressive improvements in the structure of the eye occurred during the evolution.
Answer:
The secondary consumer is the owl!
Explanation:
The mouse is the primary consumer. Then the second consumer is the owl! (See? How those words are similar? Secondary and second.) Therefore the owl is the secondary consumer. Hope this helps! <3
Ok so add it then multiplayer
D. to help scientist plan an experiment in when ch no animals or humans are harmed.
