Answer: The atmosphere of the early Earth consists mainly of carbon dioxide and nitrogen, with little or no oxygen. In this case, the ancient prokaryotes are anaerobic, which evolved in the absence of oxygen. Eventually, when photosynthetic bacteria became common, they released oxygen and changed the Earth's atmosphere.
Explanation: i took a test with this on it, i hope my answer helps
Answer:
Ecosystem seems to be the right answer NEVER SECOND GUESS YOUR SELF I have done it and it's the worst thing you can do
<h2>Option C is correct</h2>
Explanation:
Natural selection in an aquatic environment resulted in significant changes to whale forelimb anatomy
- Natural selection is the concept of evolution where organisms with favorable traits are selected(by nature) and reproduced and this process allows the organisms to adapt to the changing environmental conditions
- The upper forelimbs of humans and bats have fairly similar skeletal structures which means that they might share a common ancestor in skeletal structure but are functionally different which means they share a homology with each other
- The evolution of limbs of whales is also a part of forelimb adaptive evolution
- Gene mutation rates of higher animals are pretty much similar
- Whales are proper mammals and form a connecting link between fish and mammals
Answer:The same amount of matter exists before and after the change—none is created or destroyed. This concept is called the Law of Conservation of Mass. In a physical change, a substance's physical properties may change, but its chemical makeup does not.
Explanation:
Answer:
Sunlight and Carbon Dioxide
Explanation:
