(Different)apparent magnitude is how bright the star appears from earth and absolute magnitude is how bright the star appears at a standard distance
The number of species on Earth tagged at 8.7 million as of 2011.
It provides energy for the cell to build, repair, and reproduce. Cells needing more energy have more mitochondria.
Rain forest plants all work together to provide food and shelter for rain forest animals, as well as to convert carbon dioxide to oxygen. Ground-level competition for light and food has resulted in some unusual plant evolution.
Answer:
geologists use rock samples and direct evidence to prove what earth's structure is like.
Explanation: