6. a, 7. c, 8. b , 9. e , 10. d , 11. e, 12.c
Answer: Option A.
All of these.
Explanation:
Competitive exclusion state that or show that two organisms who compete for the same resource in the same habitat cannot occupy the same niche and cannot coexist because the stronger organism or superior one tend to outcompete the weaker organism thereby leading to the exclusion of the the weaker organisms. It is a principle in ecology also called Gause's law.
Inbreeding refers to sexual reproduction between genetically close individuals.
Interbreeding refers to reproduction with another species or race. Interbreeding is basically the same as cross-breeding.
You did not leave any choices, however, in biological organiztion, the kingdom is the least specific, yet largest level.
It's need to pass oxygen to the blood to the respiratory system work properly I think that the answer
