What type of infectious agent causes potato spindle tuber disease?

A. Viroid
B. Prion
C. Virus
D. Virino


Ans: A. Viroid

Biology & Microbiology

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Both glycolysis and the pentose phosphate pathway oxidize glucose to pyruvate

Indicate whether this statement is true or false.

Biology & Microbiology

Which one of the following best describes the proper sequence of steps involved in the scientific method? a. state hypothesis b. observe c. experiment d. support or disprove hypothesis e. form a prediction

A) b, a, d, e, c B) a, b, c, d, e C) b, a, e, c, d D) a, b, c, e, d E) e, b, a, c, d

Biology & Microbiology

In the moss life cycle _____ cells within a sporangium undergo _____ to produce _____ spores.

a) diploid ... mitosis ... diploid b) diploid ... mitosis ... haploid c) haploid ... meiosis ... haploid d) diploid ... meiosis ... haploid e) haploid ... mitosis ... haploid

Biology & Microbiology

The immediate ancestors of plants, animals and fungi are thought to be similar to some modern day ______ 

A. Protista. B. Bacteria. C. Archaea. D. Ciliates.

Biology & Microbiology