D. Holding your nose
Your sense of smell is a big part of your taste, which is why it helps to plug your nose when eating something bad.
Pure water has a pH of 7, while acidic solutions will ALWAYS have a pH lower that 7. ~Your Welcome
Hormones are chemical substances that help to regulate processes in the body. Hormones are secreted by glands and travel to their target organs in the bloodstream. Hormones can be used to control human fertility.
Answer: directional
Explanation:
Because only one trait was favored. When bears are cold, being bigger helps them better adapt to the coldness. Adjusting to the weather is one trait.
