Answer:
B. Some countries have many sources of beryllium, and some have no sources of beryllium.
Explanation:
Beryllium is a very important mineral that is present in many countries. All countries did not have beryllium deposits. Some countries have many sources and deposits of beryllium, and some have no sources of beryllium. There are many deposits of beryllium in different parts of United states of America. Those countries which have no beryllium deposits have cell phones because they purchase cell phones from international market by paying money which can be earned through selling of its goods.
Fossil fuel was non existent 2.5 billion years ago
Without any photosynthesis, there would be no plants which would lead to the many of the civilians of Earth starving to death. In the likely scenario where photosynthesis does not occur the world would most likely go into an apocalyptic way with the human race as well as many other mammals dying. The organisms that would survive might be used as a food source but the population would drastically decrease
Answer:
There would be two populations of fish:
Light-colored fishes near the surface
Dark-colored fishes near the bottom.
Explanation:
After many generations, there would be two populations of fish: Light-colored fishes near the surface and Dark-colored fishes near the bottom as light-colored fish survive better near the surface and dark-colored fish survive better near the bottom due to the lighting conditions and predators in the new habitat.
Answer:
25%
Explanation:
Since both of the parents both have heterzygous for brown eyes, the first offspring would have homozygous brown eyes because the first B's of both parents meet up. The second child would be like the parents, heterozygous brown eyes (Bb), the third child (Bb), and finally the child with blue eyes for the fourth one since both of the parent's b's meet up (bb)
