You should eat a variety of vegetables because
A. vegetables are an excellent source of protein.
B. different vegetables have different vitamins and minerals.
C. plants contain toxins and eating only one could be harmful.
D. None of the above is correct.
B. different vegetables have different vitamins and minerals.
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Which of the following statements concerning complex multicellular organisms is true?
A. Plants and animals use bulk transport systems to move gasses and nutrients, but fungi and algae do not. B. Bulk transport systems require specialized organs like a heart to pump nutrients and dissolved gasses deep into tissues that are not in contact with the external environment. C. Bulk transport systems move substances faster than simple diffusion.
A gene may consist of thousands of nucleotides.
a. true b. false
When photosynthetic pigments are extracted from the chloroplasts of green plants, they have a higher tendency to
fluoresce than pigments within intact chloroplasts. Explain this phenomenon. What will be an ideal response?
A flowering plant produces pollen in the
A) anther. B) style. C) stigma. D) fruit. E) ovule.