Why does one strand of DNA need to be copied in short fragments?
- Because the two strands of a DNA molecule have complementary base pairs
#Carry_On_Learning
Answer:
Taking shorter showers
Don't leave appliances running if you're not using them
Turn off lights after leaving a room
Eating less meat
Using renewable energy/ resources
Driving less
Answer:
Option A, oxygen in the atmosphere
Explanation:
The highest level of oxygen reached during this phase of the geological cycle of earth. The oxygen level in Carboniferous period accounted for 35% as compared to 21% of oxygen in the atmosphere in present time.
Due to high oxygen content, the giant and wide varieties of terrestrial animal and plant species evolved. For example – size of insects and carwlies increased, plant became extremely giant, increase in number of tree ferns etc.
Answer:
Answers 1, 2, and 4
Explanation:
3 is incorrect because every organism is made of cells, not just unicellular organisms. these organisms do, however, have one cell that carries out all functions for the organism.
5 is incorrect because plants are multicellular organisms and thus have more than one cell.
