Which of the following changes might cause algal toxin levels to fluctuate?
A) Exposure to sun
B) Water depth
C) Minerals available
D) Temperatures
E) All of the above could cause algal toxin levels to fluctuate
E) All of the above could cause algal toxin levels to fluctuate
You might also like to view...
Observing replication of circular plasmid DNAs by electron microscopy showed that:
A. replication initiates at multiple origins, creating multiple replication bubbles in the plasmid. B. template strands completely unwind before replication starts. C. replication initiates from a single origin, creating a single replication bubble in the plasmid. D. the plasmid DNA must become linear before replication can initiate at each end of the linear plasmid. E. replication occurred only at one replication fork of the bubble created.
Grain size in the intertidal is primarily determined by:
a. wave activity. b. types of animals in the area. c. amount of sunlight. d. feeding types in the sediment. e. burrowing activity of infauna.
This phylum of seedless vascular plants has about 1000 known living species, including those in the
genera Lycopodium and Selaginella. The gametophyte of some of these species cannot photosynthesize, and instead uses mycorrhizae to obtain nutrients
a. Hepatophyta b. Pterophyta c. Bryophyta d. Lycophyta e. Anthocerophyta
Ferns often have small bumps called sori arranged in rows on their undersides. What are these structures?
A) Spore capsules B) Seed capsules C) Nodules containing symbiotic bacteria D) Parasites