Why do leave appear starch

In the family tree below, people with the recessive trait of attached earlobes are shaded gray.

Using meiosis, the sporophyte produces spores that are .

Which of the following best describes the purpose of the parathyroid hormone? a. it decreases the blood calcium level and decreases blood phosphorus level. b. it decreases the blood calcium level and increases the blood phosphorus level. c. it increases the blood calcium level and increases blood phosphorus level. d. it increases the blood calcium level and decreases blood phosphorus level.