Electric Current. Here are some more words to meet the requirements.
Hormones
The endocrine system includes various glands in the body that are responsible for secreting hormones into the bloodstream. Hormones are chemical substances produced by the body that regulate certain functions of cells and organs. Hormones can regulate sleep, sex, growth, stress, huger, metabolism, etc.
Answer: Inside the nucleus of a cell are arrangements of DNA called genes, which are the basic units of heredity.
Answer:
C
Explanation:
Most animals can't see orange, and this makes the tiger almost invisible. This is also why hunters wear orange.