Which of the following is/are correct about light?
o a. light always travels at the same speed. b. light energy travels as waves.
c. light cannot travel through liquids.
d. all of these

Which chemical equation is unbalanced? which chemical equation is unbalanced

How do living things obtain phosphorus

Been sitting here trying to take this test and don't know this answer! place the events of a feedback mechanism associated with body temperature in the correct order. ·nerve cells send message from skin to the brain ·body returned to normal temperature around 98.6 degrees f ·temperatures regulation center in the brain sends out signals ·body temperature exceeds 98.6 degrees f ·sweat glands throughout the body activate to cool off skin surface it is a 1 through 5 question in biology!