Examlex
____________from the adrenal medulla increases the heart and respiratory rates, raises blood pressure, and increases blood glucose levels.
Megaspore
A large spore that develops into a female gametophyte in plant species that have alternation of generations, like ferns and flowering plants.
Haploid Nuclei
Nuclei containing a single set of chromosomes, typical of gametes in sexually reproducing organisms.
Nitric Oxide
A gaseous signaling molecule involved in many physiological and pathological processes within the mammalian body.
Stomatal Closure
The process where plant stomata pores close to reduce water loss or protect against harmful environmental conditions.
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