PHB granules are found in which kind of bacteria?
only spore forming bacteria
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Which of the following is essential to the productivity of farms and gardens?
a. the mycorrhizal relationship between fungi and plant roots b. secondary metabolites which inhibit bacterial growth c. yeasts that facilitate the growth of plants d. lichens that provide nutrients to plants
An earthquake hits a small island. All but a few individuals of a lizard species are eliminated in this catastrophe, and an allele is lost from the population. This is an instance of __________.
a. the bottleneck effect b. the founder effect c. gene flow d. mutation e. natural selection
An oral contraceptive pill contains ____
a. estrogen only b. progesterone only c. FSH d. LH e. estrogen and progesterone
The ____ prevents food and fluids from
entering the ____. a. epiglottis; larynx b. pharynx; larynx c. epiglottis; esophagus d. pharynx; trachea e. larynx; pharynx