Using the marine food web below, on what trophic level are the squid?

Aboy with an extra x chromosome probably has which of the following syndromes?

Hedgerows have created a new ecosystem within britain’s a. farms b. cities c. forests d. industrial areas

The bacteria inside a tube worm would be analogous to what organism in the ocean ecosystem near the waters surface? a. photosynthetic algae b. shrimp c. clown fish d. parasitic lamprey