Since it has 4 protons, it must have an atomic number of 4. (That makes it beryllium.)
Since it has a 4 protons and 5 neutrons, it has a mass number of 9.
Answer:
Habitat Isolation
Explanation:
Ecological, or habitat, isolation occurs when two species that could interbreed do not because the species live in different areas.
D. pressure from lava being pushed up from th earth adds new material to the ocean floor, creating a ridge
They are related because genetics change during evolution.
Scientists are still doing research and we just need to be patient. :) :)