D - A scientist has tested with an experiment
Answer:
peace
Explanation:
All the other options are bad. Peace would bring unity.
Natural Disasters-can infect waters,kill peoplw,etc.
Competition-people killing each other or animals to gain something over their opponent
Diseases-kills people,brings anxiousness
Predation-Kills animals. No animals,bad environment
Answer:
str alleles comes from a persons father , one from their mother. DNA paternity test , the analysis seeks matches of allele number values between the alleged father and child
Answer:
bones,muscles, and tendons
Explanation:
They migrate though the North Atlantic Ocean. And also they migrate from North America,Europe,Iceland,and northwestern Russia.