What is the name of a lineage of flatworms that are endoparasites of vertebrates?

a. Cestoda
b. Turbellaria
c. Trematoda
d. Hirudinea


Answer: c. Trematoda

Biology & Microbiology

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The most common dental anesthetic used is lidocaine. Lidocaine blocks voltage-gated Na+ channels. Where along the facial nerve would you expect lidocaine to be active?

A. along the cell body B. at the dendrite C. along the axon D. at the axon terminals E. at the synaptic cleft

Biology & Microbiology

In which type of population distribution would

plot sampling be most accurate?

a. clumping b. uniform c. random d. random and clumping e. uniform and clumping

Biology & Microbiology

Trans fats

A) are unsaturated fatty acids. B) resemble saturated fatty acids in shape. C) are associated with an increased risk of heart disease. D) are present in small amounts in meat and dairy products. E) All of these statements are true.

Biology & Microbiology

In temperate deciduous forests, trees drop their leaves in response to reduced sunlight

Indicate whether the statement is true or false

Biology & Microbiology