Which phylum of nonvascular plants has about 10 000 known living species, including those in the genus Sphagnum?
a. Pterophyta
b. Hepatophyta
c. Lycophyta
d. Bryophyta
Ans: d. Bryophyta
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Which of the following is NOT a concept or term related to the flow of energy through living systems?
a. cellular respiration b. consumers c. decomposers d. photosynthesis e. sexual reproduction
What type of cell, once it enters the tissues, is converted into a macrophage that attacks invaders by phagocytosis?
A) neutrophil B) monocyte C) lymphocyte D) basophil E) eosinophil
Which two phases of mitosis are essentially mirror images of each other?
Goblet cell hyperplasia is associated with asthma. Based on their function, what is the likely outcome of an overabundance of goblet cells?
A. Excess O2 absorption B. Decreased mucus production C. Excess mucus production D. Decreased CO2 absorption