Question

1. define the word part helio-.

sun
boil
sweat
hairy

1. ______ literally means oil.

pilo-
cysto-
oleo-
sudoro-

Explanation:

Question 3

The prefix "helio - " is a Greek - derived word part. In etymology (the study of word origins), "helio - " is known to mean "sun". For example, "heliocentric" means having the sun as the center, and "heliograph" is a device that uses sunlight to send signals. The other options "boil", "sweat", and "hairy" do not match the meaning of "helio - ".

To solve this, we analyze the meaning of each prefix. "Pilo - " is related to hair (e.g., "pilose" means hairy). "Cysto - " is related to cysts (e.g., "cystoscopy" is the examination of a cyst). "Oleo - " comes from the Greek word for oil, so it literally means oil (e.g., "oleometer" is an instrument to measure the density of oil). "Sudoro - " is related to sweat (e.g., "sudoriferous" means producing sweat).

Answer:

A. sun

Question 4