Answer:
Spores.
Explanation:
Sporulation is a type of asexual reproduction which occurs in organisms such as fungi, bacteria. In sporulation, specialized cells transformed into a hard resistant resting structure to overcome unfavourable condition. On the return of favourable conditions spores germinate to form new offspring. Sporulation is very common in fungi.
Reduces water loss compared to other nitrogenous wastes but requires more metabolic energy to produce
Mammals excretes urea as the primary nitrogenous waste product. On the other hand birds, and reptiles excretes uric acid as the primary nitrogenous product. They are called uricothelics because they can convert ammonia to uric acid. Uric acid is a compound similar to purines. This is produced through a complex metabolic pathway thay cost high energy. However it has advantages such as reducing water loss.
Breaking down molecules all ways requires energy because the atoms are held together by the interactions of electrons in their valence shells. Separating them therefore makes them less stable.
I think it's b) asymmetrical
A. Volcanic activity
You can approach this question in two ways:
One:
when volcanos erupt (called volcanic activity), they will expel enormous amounts of soot, rock, smoke, and other materials into the air. This material, if light enough, floats around in the atmosphere and can block the sun. The CO2 and other greenhouse gases produced can also contribute to global warming
Two:
Notice how volcanic activity is something that happens randomly and ‘rarely’. However, answers B, C, and D happen all the time. Earth is always spinning, it’s also always rotating around the sun. The sun also never stops moving: its main motion is from revolving around the Milky Way. Thus, it makes sense to choose the one random, rare event. This is because we only see long-lasting climate change occasionally, and thus it can’t be something ordinary like earths rotation.
