5. it is not always easy to categorize a particular case of symbiosis. suppose a certain species
of snail is always found living on a certain coral. no one has found evidence that the snail
harms the coral, so the relationship is classified as commensalism. how would you go about
testing a hypothesis? what kinds of observations might lead to the conclusion that the snail is
a parasite, or that it as a mutualistic relationship with the coral?

Identify the advantages and disadvantages or renewable and nonrenewable energy resources

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.

Why do some dna fragments move farther than others during gel electrophoresis? a. because their shapes are different b. because they are different types of molecules c. because the samples are different colors d. because their masses are different