Answer:
the enzyme and substrate fit together like a lock and key.
Diaphragm...is the muscle that helps in respiration.....there are also some other but....you said flat so diaphragm !
‘Family planning’ is a broad term that includes any measures taken to responsibly prevent pregnancy (birth control, contraception, planning, abortions, permanent infertility procedures, etc.).
Birth control, however, is specifically designed to intervene in a woman’s natural hormones to drastically reduce the possibility of pregnancy (much like contraception)
