Which one of these tests would NOT be helpful in determining if a sample is human or animal? a. blood type determined to be AB B. luminol test is performed and a blue glow is observed

c. precipitin test is performed and no coagulation is observed

d. when sample is viewed under a microscope, a large nucleus is viewed in Ted blood cells

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

the population of unionid mussels in the hudson river decreased after zebra mussels were introduced. zebra mussels, a nonnative species, competed with the unionid mussels for food. the zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. the unionid mussel population decreased due to a lack of food.

hope this :