Which of the following increases the chance of cancer?
1. exposure to certain chemicals
ii. exposure to certain types of radiation
iii. the consumption of too many vitamins
iv. sleep deprivation

What is the following best defines climate?

Which statement about the pancreas is not true? a. it is an endocrine organ in the abdomen. b. it release chemicals into the digestive system. c. it releases insulin to increase glucose levels. d. it release hormones into the bloodstream.

Look at the photo of the leaf, which term best describes this leaf ? a-simple. b-parallel. c-lobed. d-tooth.