Answer:
I think its A
Explanation:
Because the reason why airplane have closed windows is because we can't breathe in carbon dioxide when we go up. Of course there is oxygen just not a lot as we go up. Why would there be helium in the air? We would sound weird when we skydive.
Answer:
It could change the DNA code resulting in failures
Explanation:
Answer:
1. Vestigial organs.
2. Homologous structures.
3. Analogous structures.
Answer:
a response to one factor in the environment
Answer:
¨ An S wave, or shear wave, is a seismic body wave that shakes the ground back and forth perpendicular to the direction the wave is moving.¨
Explanation:
