In an ecosystem, can there be more carnivores than herbivores?

Which best describes an adaptation that could be found in a fish that lives in a slow-flowing stream? the ability to attract prey by glowingextra gills, for oxygen extractionthe ability to grow largerextra fat, for warmth

The organelle pictured is found in cells of and is theorized to have once been an independent organism.

Which of the following is a testable hypotheses?