A. leeches platyhelminthes flatworms such as planaria, liver flukes
b. octopus and slugs annelida* earthworms and marine bait worms
c. spiders, ticks, and crabs mollusca* snails, clams, squid
d. corals and sea fans nematoda roundworms such as pinworms or heartworms
e. brittle stars and sea cucumbers arthropoda* insects, lobsters, shrimp f. humans, sharks, and lizards echinodermata* sea stars, sea urchins g. tapeworms chordata* dogs, frogs, fishes, and birds h. hookworms and the worm causing elephantiasis

Familial hypercholesterolemia, an autosomal dominant disease, is five times more frequent in the afrikaner population of south africa than in the original population of europe from which the ancestors to the afrikaners immigrated. what does this demonstrate?

Which statement about relative potential energy of electrons is correct? a. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 2 s orbital of the second electron shell. b. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 3 p orbital of the third electron shell. c. an electron in the 3 p orbital of the third electron shell has more potential energy than an electron in the 2 p orbital of the second electron shell.

Which of the following statements is true regarding a basic amino acid? a.) the hydrophilic r group of a basic amino acid will be located on the interior of a protein b.) the positively charged r group of a basic amino acid could bind dna c.) the r group of a basic amino acid would only be able to form covalent bonds with other molecules d.) a basic amino acid would be considered both polar and hydrophobic e.) all of the above