Answer:
1)ans:- The iris contains muscles that allow the pupil to become larger (open up or dilate) and smaller (close up or constrict).
2)ans:- Light enters the eye through the transparent front surface called the ....Cornea...
3)ans:- The rods and cones send signals to the brain along a short , thick nerve called the .....optic nerve......
************This answer is given by MD.Tashin***************
Answer:
Fossil steroid and molecular clock evidence suggests that animals originated between 770 and 710 million years ago
Explanation:
photosynthesis is the process
Answer: The female had the genotype XHXh, and produced the two gametes seen at the left side of the diagram. The male had the genotype XHY0, and produced the two gametes seen at the right side of the diagram.
Explanation: