Kayla and layla are twins who were separated at birth. a researcher interested in studying heredity tracks them down and speaks to their different families about the benefits that can be achieved by studying the two young girls. the girls and their different sets of parents agree to participate, and studies begin assessing various areas of the girls’ lives. in order for this type of twin study to be most effective, what kind of twins should kayla and layla be? group of answer choices
a. dizygotic
b. amorphous
c. monozygotic
d. conjoined

Calvin ate a candy bar, which caused his body's blood glucose levels to become unbalanced. his body responded by initiating a feedback mechanism to return his body to homeostasis. place the steps of this feedback mechanism in order, starting with the blood glucose imbalance that occurred after calvin consumed the candy bar. a) calvin's blood glucose levels decreased. b) calvin's pancreas stopped secreting insulin. c) calvin's body cells started to take up glucose and store it as glycogen. d) calvin's blood glucose levels increased. e) calvin's pancreas started secreting insulin.

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite

Match each symbol with its description.