Red light has a wavelength that is the most effective for triggering stomatal opening

____________________ Indicate whether the statement is true or false.


F, Blue

Biology & Microbiology

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HIV attacks a variety of cell types but the most critical are

A. red blood cells. B. nerve cells. C. platelets. D. T helper cells.

Biology & Microbiology

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

Biology & Microbiology

DNA replication occurs through a ________ process.

A) conservative B) semiconservative C) dispersive D) transformative

Biology & Microbiology

Your colleague is studying a newly discovered organism.  She is becoming increasingly convinced that the organism is an arthropod.  You find that you must respectfully disagree when you note that the organism has a set of distinctly nonarthropod characteristics.  The features that cause you to exclude the organism from the arthropod grouping are

A. Malpighian tubules, ommatidia, and tagmata. B. antennae, six legs, and mandibles. C. jointed legs, ecdysis, and an exoskeleton. D. compound eyes, book lungs, and a hemocoel. E. pseudocoel, closed circulatory system, and ventral heart.

Biology & Microbiology