How can a small human retina detect objects larger than itself?

a. lenses of the eye change the size of the images.

b. the brain interprets the size of the images.

c. the cells of the retina change the size of the images.

d. the optic nerve interprets the size of the images.

An object starts from rest at point f and speeds up continuously as it moves around an oval. a. choose a point about 1/8 th of the way around the oval from point f, and label it point g. draw a vector to represent the velocity of the object at point g. b. determine the change in velocity vector   between points f and g.

On a mild saturday morning while people are working inside, the furnace keeps the temperature inside the building at 23degreesc. at noon the furnace is turned off, and the people go home. the temperature outside is a constant 16degreesc for the rest of the afternoon. if the time constant for the building is 3 hr, when will the temperature inside the building reach 18degreesc? if some windows are left open and the time constant drops to 2 hr, when will the temperature inside reach 18degreesc?

Language is not the only way that humans communicate. describe how we use sound, touch, chemicals, and sight to communicate. need answer asap