The iris focuses light rays before they enter the posterior portion of the eye
Trophic Levels describe the transfer and different stages of the organisms transferring energy. I just called it Trophic level energy flow in school.
I dont remember much of biology but i do remember my teacher saying something about phosphate backbone, i know its not much help. sorry!!
Answer:
D
Explanation:
seismographs detect waves and vibration undergroud
Answer: D
Explanation: I Googled it