Grain is eaten by cows, and cows are eaten by humans. if the ecological transfer efficiency between each trophic level is 10 percent, how much grain is required to produce 70 kg of human biomass?

Ais a group of individuals of the same that exist together in the same place at the same time

Which if the following best describes why invertebrates isn’t considered a scientifically valid word when classifying animals

Which statement does lola need to correct, and why? a) statement 1 because spiral galaxies do not havearmsb) statement 2 because the bulges contain mostlyyoung red stars.c) statement 3 because the arms are made of mostlyyoung blue and blue-white stars.d) statement 4 because spirals galaxies contain littleto no dust.(c)