Confused, please help me! cane toads are large non-native poison toads in Australia after cane toads entered Australia scientist observed that the average head size in a population of toad eating snakes with getting smaller snakes with smaller heads are not able to eat this large cane toads what is the situation called

A. Species richness
B. Stabilizing selection
C. Fitness
D. Directional selection

What is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.

What is the membrane that sheath of schwann cell containing cytoplasm and nucleus that encloses myelin

Which of the following is not associated with invasive species?