Muscles are attached to bones by tendons.
a. true
b. false
a. true
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Animals use auricular muscles to swivel their ears to home in on sounds. Humans have auricular muscles but we can't turn our ears. So why do humans have auricular muscles?
A) They are needed in the development of the human embryo but not in the adult. B) They are still needed to help us swallow and retract our tongue. C) They are vestigial structures we inherited from mammalian ancestors D) People who can wiggle their ears due to auricular muscles have a reproductive advantage.
Which of the following is used to screen newborns for the genetic disease PKU?
A) RFLPs B) ASOs C) Antibodies D) PCR E) All of these
Which of the following is a population?
A) the termites infesting your house along with the microorganisms living in their guts B) all of the termites that have ever lived C) all organisms living in your house D) the termites infesting your house
Trypanosoma cruzi
A. Belongs to the phylum Apicomplexa; intracellular; located in the blood; sexual and asexual reproduction; indirect life cycle B. Belongs to the phylum Euglenozoa; extracellular; located in the small intestine; asexual reproduction; direct life cycle C. Belongs to the phylum Apicomplexa; intracellular; located in the small intestine; sexual and asexual reproduction; direct life cycle D. Belongs to the phylum Euglenozoa; intracellular; located in blood and different body tissues; asexual reproduction; indirect life cycle