The right answer is C.invention
Contact lenses are placed directly on the surface of the eye to correct your eyesight.
They can correct myopia and hyperopia. They can also correct age-related astigmatism and hyperopia (presbyopia).
Their principle is the same as for glasses: they bend the light and redirect it to your retina to improve your eyesight.
Other hawks, eagles, owls can prey on them. The Goshawk is well known for removing any competitors from it's territory, even larger species. Large owls sometimes take hawks that are roosting at night or even when they are incubating eggs. Any type of cat, or dog, or marten, indeed any carnivorous mammal.
I believe the polysaccharide that provides rigidity and strength in plants would be cellulose. As this is one of the essential components found in the cell wall of plant cells.
Explanation:
Haha but i don't want keep yourself
Having the haploid number of chromosomes allows the zygote to have the correct number. If gametes weren't haploid, every generation of organisms would have twice as many chromosomes as their parents. I hope my answer has come to your help. God bless and have a nice day ahead!