What members of a food chain will be most affected by the introduction of a toxin into an ecosystem

Individuals do not compete directly for resources, but are prey for the same predator

Pink fur (p) is dominant to purple fur (p) in hamsters. two heterozygous pink hamsters are crossed. what is the probability that these two parents will have an offspring with purple fur? 2/4, 1/2 or 50% 1/4 or 25% 3/4 or 75% 4/4 or 100% there is no chance for this type of offspring

What are the ingredients of oobleck?