Explain the unique purpose of baleen plates. What trophic position do baleen whales occupy, and what advantage is it to the baleen whales to consume the diet they do?
What will be an ideal response?
The baleen replaced teeth and consists of keratin fibers fused together. They function to strain plankton, mainly krill, on which the whales feed from the sea. Krill feed on phytoplankton. As a secondary level consumer the baleen whales have access to ten or more times the energy and organic material available to the toothed whales who may be feeding at the third to sixth tropic level. This enables them to be the largest animals.
You might also like to view...
Arrange the steps in translation in order from earliest to latest
A) movement of the ribosome three bases closer to the 3' end of the mRNA B) peptide bond formation C) identification of initiator codon and joining of large and small ribosomal subunits D) release of the polypeptide from the ribosome and dissociation of ribosomal subunits E) binding of a charged tRNA to a codon in the A site of ribosome
A researcher identifies an abnormality in a protein that causes a particular inherited illness. To develop a treatment, it would be most helpful to know
A) which cells are affected and how to replace the protein's function in them. B) if this type of mutation occurs in all species. C) the other types of molecules that cause or contribute to the disease. D) how the mutation was caused.
Which observations of species distribution across Earth support the theory of common descent?
A) All continents contain nearly identical organisms. B) Each part of Earth contains life forms perfectly designed for that region. C) One can see similarities in organisms that are found in close proximity, but each population has adaptations that suit the organisms to their particular habitat. D) There are very few similarities among life forms on different tropical islands.
What is the theory of endosymbiosis?
What will be an ideal response?