Answer:
The prefix "echin-" means D. The prefix "exo" means outside/external.
Explanation:
N positron emission, also called positive beta decay (β+-decay), a proton in the parent nucleus decays into a neutron that remains in the daughter nucleus, and the nucleus emits a neutrino and a positron, which is a positive particle like an ordinary electron in mass but of opposite charge.
Earthquake, Tsunami, land slides, storms, and flooding
B: The mutation must be inherited from both parents is correct.
