Answer:
F) mandated.
Explanation:
Mandated by meaning is to, quote "issue an authoritative command". In this case, the authoritative command is the "law". The law is mandated and enforces the conservation of energy.
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Extinction of species reduces the number of different species in ecosystems, hence lowering the diversity of living things.
The correct answer is: first level.
Maslow's hierarchy of needs is a theory in psychology that is represented by hierarchical levels of human needs within a pyramid. There are five levels of needs:
1. Physiological (food, water, rest..),
2. Safety ,
3. love and belonging (friends, intimated relationships),
4. esteem (feeling of accomplishment),
5. self-actualization (achieving your own potentials).
Circulatory system and nucleus
