Answer is the first option Place a metal paper clip on a table and slowly bring each electromagnet closer to the paper clip to see which can attract the paper clip from a greater distance.
I don't know why but I find your questions a bit too easy..
The similarity just lies in the structure. DNA is double-stranded, however it is twisted/helical, while the ladder does not twist. However, other than that, they are quite similar. The 2 strands (5' -> 3' and 3' -> 5') of DNA serve as the 2 vertical sides of the ladder. The base pairs of DNA are what connect the two strands together. So, in terms of the ladder, think of the steps of the ladder as the base pairs. Think each step as consisting of 2 entities joining together to make 1 big step. For example, think of a step having 2 halves down the middle. 1 half would be a guanine (base) and the other half would be a cytosine (base). Guanine is connected to the 5' --> 3' strand (Left vertical side of ladder) while the Cytosine is connected to the 3' --> 5' strand (right vertical side of ladder). These two come together at one of their ends and base pair, which appears to look like the steps on a ladder.
Multicellular organisms use different types of cells to function not just one cell. If cells grew larger that cell would be more demanding.
Answer:
Plants and animals exchanged carbon dioxide and oxygen with the atmosphere
Explanation:
The atmosphere that we know it nowadays is a result of the interactions that were happening between the spheres in the past. The big game changers were the plants and the animals, as they started to use certain gasses from the atmosphere, keep some of them, release some in the soil or air, thus having a biosphere, geosphere, and atmosphere. Gradually this has resulted in a change of the atmosphere, making it suitable for supporting much larger and more complex organisms, at the same time influencing the soils, and waters, the climate etc.
