I am not 100% sure but I believe that because of increased manufacturing, the air got very polluted and this made many trees darker, like birch. So moths are usually lighter in color so many couldn’t really hide among trees and they were eaten. After some time, many moths mutated and also became darker to blend in when they were on trees to prevent being eaten by predators. In conclusion, the population decreased.
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Although "further disturbances" is pretty vague, both climate change and nonnative species will definitely have a potentially long term impact on an ecosystem
there's a mistake in the question, weight isn't measured in pounds its measured in newtons, mass is measured in pounds
im going to assume ur asking why our weight is different on the moon and earth, and why the mass remains the same
weight is how many newtons of gravity is acting on you. the gravitational field strength on earth and moon are very different. on earth its 9.8N and on the moon its 1.6N. Because the force of gravity is weaker on the moon, you weigh less.
1. don't give up
2. put your goals into action & don't just talk about it
3. if it's for weight loss , then ask a doctor for a calorie diet or get a personal trainer
Both a and b. Protists can be heterotrophic (organisms that get their nutrition from complex substances) or autotrophic (organisms that make their own nutritional substances).
