Which essential plant nutrient regulates the opening and closing of pores in the leaves?

A) Copper B) Calcium C) Potassium D) Phosphorus E) Iron


C

Biology & Microbiology

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These types of compounds are a group of unrelated organic molecules, either water-soluble or fat-soluble, used in the manufacture of final products by acting as coenzymes. 

A. phosphates B. acids C. vitamins D. enzymes

Biology & Microbiology

Which of the following statements about herpesviruses is false?

A) Herpesviruses reproduce inside the host cell's mitochondria. B) Herpesviruses acquire their envelopes from the host cell nuclear membrane. C) Herpesviruses may remain dormant for long periods of time while inside the host cell nucleus. D) Herpesviruses may cause cold sores or genital sores to appear during times of physical or emotional stress.

Biology & Microbiology

All of the following are correct about iodophors, except

A. this formulation allows a quick release of free iodine. B. this formulation increases its penetration. C. they are complexes of iodine and a neutral polymer. D. a common iodophor is Betadine. E. it is less prone to staining or irritating tissue.

Biology & Microbiology

The tendency of having variation within a species is known as:

A. Morphology B. Pleomorphism C. Metamorphosis D. Micro genetics

Biology & Microbiology