Answer: D
Explanation: endocrine gland cells that secrete hormones (chemical messengers), which are carried in the bloodstream to the target cells which they act upon
When a plant opens and closes its stomata, it is maintaining homeostasis. Homeostasis includes the regulation of carbon dioxide and water levels necessary to perform photosynthesis. It also allows the plants to store water to prevent them from dying
The answer is Klinefelter syndrome.
Nondisjunction disorders are conditions resulting from an unbalanced distribution of chromosomes. In the case of Klinefelter syndrome, the sex chromosomes are affected. Rather than having an XX for female or an XY for male people with Klinefelters have either XXY or XYY.