Answer:
Continuous variations are formed due to chance segregation of genes during gamete formation, crossing over and chance combination during fertilization. They can increase adaptability of the race but cannot form new species.
Symptoms include feeling tired feeling bloated peeing more than usual mood swings nausea and tender or swollen breasts
I'm fairly sure the answer is C.
I know I'm late, but for any who need this answer again, the answer is
(B) to exchange oxygen with carbon dioxide.
Brainliest Please I need it. Also hit the thanks!
Love YA.
