The answer to this question is :
D. Obstacle Evaluation
Answer:
individuals do not evolve, as each individual's genes do not change, and evolution is defined as the change in allele frequencies over time.
Explanation:
h2o is water and c2o is carbon dioxide :)
Hope I was help :D
These are known as Hormones. Hormones are chemical messengers that are released in one tissue normally endocrine glands for example, adrenal glands, pituitary glands, and transported in the blood stream to alter the activities of specific cells in other tissues. Hormones serves as messengers, controlling and coordinating activities or processes such as growth, metabolism and fertility in the body.
Ying and yang is the answer to the question