Plants have mitochondria

a. true
b. false


Answer: a. true

Biology & Microbiology

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Gymnosperms can be both monoecious and dioecious. What does dioecious mean?

a. a sister group to the angiosperms b. diploid egg and sperm join at fertilization to form a tetraploid seed c. male and female sporangia produced by different plants d. having two ovules per scale in the cone

Biology & Microbiology

The hormone ____ is involved in a positive feedback cycle that results in strong uterine contractions during labor

a. estrogen b. oxytocin c. cortisol

d. progesterone e. prolactin

Biology & Microbiology

Which of the following drugs is contra-indicated for treating children under the age of 12?

A) tetracycline B) gentamicin C) erythromycin D) amoxicillin

Biology & Microbiology

Which of the following examples would be most likely to result in macroevolution?

A) a change in a regulatory gene, which has a major and adaptive impact on morphology B) a point mutation deep within an intron C) DNA-DNA hybridization D) gene flow E) genetic drift involving a trait that seems to exhibit neutral variation

Biology & Microbiology