I don't know if this will help you or not but here you go.
https://quizlet.com/225903868/lesson-11-the-nature-of-life-unit-test-biology-a-unit-1-the-nature-of-life-flash-cards/
C because oxygen was a byproduct of photosynthesis and proved to be EXTREMELY important in the atmosphere.
Answer:
1. The Southern Hemisphere would be having it’s hottest temperatures.
2. Depends, if you are near each other yes, but say Antarctica and Florida won’t have the same temperatures as each other because they are different climates.
3. diurnal temperature variation.
Explanation for 1:
The two hemispheres are opposite, one is hot, one is cold. Therefore, the Southern Hemisphere would be having it’s hottest!
The answer is B). Genetic screening basically testing for the genetic traits of an individual. Therefore the answer would be B).