Many garden plants that are grown for leaves or roots, such as parsley and carrots, produce vegetative growth the first year and reproductive structure growth the second year. Thus, what type of plants are parsley and carrots?
A) annuals
B) biennials
C) perennials
D) woody plants
B
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Crown corrosion of concrete wastewater distribution systems is the result of
A) acidic fermentation products reacting with the gypsum in the concrete. B) sulfate reduction in the sewage and sulfide oxidation in the oxic headspace above. C) fungal growth in the concrete. D) rapid iron reduction coupled to pyrite dissolution.
Bone structure
What will be an ideal response?
Which of the following statements is INCORRECT about triploid species?
A) Triploid species have an extra copy of one chromosome. B) Triploid species have three complete sets of chromosomes. C) Triploid species are usually infertile. D) Triploid species are an example of a polyploidy organism. E) All of these choices are correct.
Which one of the following hormone pairs is antagonistic, in that they have opposing effects?
A) estrogen, progesterone B) epinephrine, norepinephrine C) glucagon, insulin D) oxytocin, prolactin E) thyroxine (T4 ) and triiodothyronine (T3 )