What is the advantage of having small, needlelike leaves?
A) increased transpiration rate
B) decreased transpiration rate
C) increased efficiency of light capture
D) decreased efficiency of light capture
B
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Which type of epithelial cells act in absorption and secretion?
a. Columnar and stratified squamous b. Columnar and cuboidal c. Simple squamous and columnar d. Cuboidal and simple squamous e. Stratified squamous and columnar
Which of these diseases would most likely be identified by viewing a stained blood smear in a light microscope?
A. Ebola hemorrhagic fever B. Dengue fever C. HIV D. Chagas disease
Which lineage(s) diverged before the turtle lineage?
a. mammalian d. mammalian and amphibian b. amphibian e. amphibian and lizard c. lizard
Mutations that affect SR proteins will have what kind of effect on gene expression?
A) Polyadenylation at the 3' end will be blocked. B) Ribosomes will not be able to bind to mRNA molecules in the cytoplasm. C) General transcription factors will be unable to bind to promoters. D) RNA polymerase will be unable to terminate transcription. E) Splicing of the mRNA will not be activated.