Genetic variation is the answer to ur question
The very primitive organism is the oldest because, over time, organisms gradually evolved into more complex organisms. First came the primitive organism, then it evolved into the more complex one, or the younger fossil.
Answer:No
Explanation:Plants will not just have to rely on one animal to help reproduce. Plants can mimic things such as scents or looks to be an incentive for other animals. Wind and water can also help transport pollen. Plants always have pollinators such as wind, water, insects, and animals. Plants use mimicry in order to attract the biotic pollinators. Plants will never have trouble reproducing because they have so many different pollinators.
When oxygen is absent, anaerobic respiration occurs ('an' means without).
I’m sorry i don’t know the answer but i wanted to warn you to NOT click on the link. it supposed to track your location. at least that’s what i heard