Which of these is a function of estrogen in reproduction? A. Releasing the growth hormone
B. Developing the motility of sperm
C. Stimulating the release of luteinizing hormone
D. Reducing the hardness of bone tissue

Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a. an ionic bond is formed between the oxygen and carbon atoms. b. four valence electrons are shared. c. two valence electrons are shared. d. valence electrons are shared between oxygen atoms.

Explain why scientists use the word dominant for certain traits.