Two birds that look very similar to each other have always been considered two distinct species based on differences in their body size and in where they live. a group of ornithologists studying the two species begins to think they might not be separate species based on observed behavior. what would be the best next step regarding this new hypothesis?

run dna tests on the two species to see how genetically similar they are.
publish their conclusions in a scientific journal to officially change their classification.
trace the birds' ancestry in the fossil record to see if they diverged into two species.
compare embryos of the two birds to see if they differ during development.

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

The picture shows a fishing technique called trawling. how might trawling affect marine biodiversity

Which of the following graphs have the same wavelengths