A(n) ____________________ is a testable statement proposed to explain an observation. Fill in the blank(s) with the appropriate word(s)


ANSWER: hypothesis

Biology & Microbiology

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Symptoms of cryptosporidiosis include

A. chills, fever, and sweats. B. bloody, mucus-filled stools and fever. C. a red skin papule that spreads to a large ulcer. D. headache, sweats, vomiting, severe abdominal cramps, and diarrhea.

Biology & Microbiology

Integration of body functions is controlled by:

a. the respiratory system only b. the nervous system only c. the endocrine system only d. the lymphatic system only e. both the nervous and endocrine systems

Biology & Microbiology

You wish to study how a protein binds to DNA, and which specific amino acids are involved.  To do this you would create which type of model?

A. mathematical model B. structural model C. temporal model D. mechanistic model E. hierarchical model

Biology & Microbiology

The last universal common ancestor (LUCA) probably lived about 3.5 billion years ago

a. true b. false

Biology & Microbiology