By definition, an indirect parasitic life cycle includes:

A. a parasite that can infect more than one host
b. A parasite that has more tha one stage.morphologic form during its life
C. a parasite that must infect two different species of hosts to complete its life cycle
D. A parasite that has an environmentally resistant stage as well as infection in the host


Ans: C. a parasite that must infect two different species of hosts to complete its life cycle

Biology & Microbiology

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After ingestion by humans, the first category of macromolecules to be chemically digested by enzymes in the mouth is _____

A) proteins B) carbohydrates C) nucleic acids D) minerals

Biology & Microbiology

_______ is a connective tissue that cushions joints and creates a solid yet elastic structure in areas such as the ear and the nose. The skeletal system utilizes two main types of cartilage to support skeletal growth, integrity, and function

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Predict which of the following scenarios would be most likely to result in an action potential

A. dendrites: high-frequency IPSP; cell body: low-frequency EPSP B. dendrites: low-frequency EPSP; cell body: high-frequency IPSP C. dendrites: low-frequency IPSP; cell body: high-frequency EPSP D. dendrites: high-frequency EPSP; cell body: high-frequency IPSP

Biology & Microbiology

The organisms formerly classified in the Kingdom Protista ________

A) all contain chloroplasts B) form a single monophyletic group C) include the last universal common ancestor (LUCA) of life D) are scattered throughout all branches of the eukaryote family tree E) have a fossil record extending back 3.4 million years

Biology & Microbiology