23. Some chemical interactions in a human are shown in the graph below.
Relative Hormone
Concentration
Estrogen
FSH
-LH
Progesterone
2 4 6 8 10 12 14 16 18 20 22 24 26 28
Days
This graph represents hormones and events in the
A) process of fetal growth and development
B) process of meiotic cell division during sperm
development
C) reproductive cycle of males
D) reproductive cycle of females

What is any method of measuring the age of an object or event in years, such as using atomic half-life?

How do high-energy electrons from glycolysis and the krebs cycle contribute to the formation of atp from adp in the electron transport chain? a. high-energy electrons interact with pyruvic acid to create a phosphate bond with adp, forming atp. b. high-energy electrons supply the needed energy to synthesize atp from the lower-energy adp in the electron transport chain. c. high-energy electrons supply a negative charge which causes the citric acid to oxidize, forming a phosphate group to bond with adp. d. high-energy electrons increase the temperature of adp so it easily reacts to form atp.

What is true of metabolism in its entirety in all organisms?