Coccolithophorids are marine members of the brown algae
________________ Indicate whether the statement is true or false.
False - golden algae
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Which of the following is true of nucleosome structure?
A. Nucleosomes are composed of about 1,000 bp of DNA wrapped around a histone core. B. Nucleosomes are composed of about 200 bp of DNA wrapped around a histone core. C. The DNA wraps around the core nearly two times, forming a right-handed solenoidal supercoil. D. The DNA wraps around the core nearly three times, forming a left-handed solenoidal supercoil. E. None of these choices is correct.
Introduction of nonnative marine species often occurs through release of ballast water in ports of call
Indicate whether the statement is true or false
Which of the following processes does not use ATP?
A. active transport B. diffusion of oxygen into the blood C. muscle contraction D. cytoplasmic transport E. heat production
Mycorrhizal association with plant roots is best described as
A. a symbiotic relationship between the plant and certain bacteria. B. detrimental to the roots. C. a fungus root interrelationship. D. a kind of fungal parasite on plant roots. E. only a temporary association dependent on water uptake.