Answer:
They consist mainly of iron-nickel metal with small amounts of sulphide and carbide minerals. During the decay of radioactive elements in the early history of the solar system, many asteroids melted and the iron they contained, being dense, sank to the centre to form a metallic core.
Explanation:
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<span>The option that best explains why ecosystems need a continual influx of new energy is C. energy flows through an ecosystem and cannot be recycled. Given that it cannot be recycled, and it comes and goes, ecosystems need new energy to replace the old one they may have lost over time. Other answers don't really make much sense and don't have a lot to do with energy/</span>
Answer:
1) respiration 2) photosynthesis.
Explanation:
B) attraction to itself. adhesion is attraction to other surfaces.
Answer:
Si son los mismos , El evolucismo o transformismo señalaba que los seres vivos an cambiado a través del tiempo , también los evoluciónistas consideraban que el planeta estaba en constate cambio
Explanation:
