Answer:
no we havent
Explanation:
The last one was 26,500 or 74,000 years ago.
Answer:
Humans are most highly evolved and most complex animals
Answer:
it depends
Explanation:
Different plants may have different speeds in which they produce oxygen or absorb carbon dioxide therefore photosynthesis may have different rates of speed.
Explanation:
Echolocation is one of the methods of orientation mainly used by the microchiropteran or insectivorous bats. While flying, these bats emit high frequency ultrasound. These sound pulses hit obstacles like rocks, trees, walls etc. and their echoes are heard by bats.
