Air and water vapor cross the epidermis via
a. pits.
b. perforations.
c. osmosis.
d. stomata.
e. tracheids.
Answer: d
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Organelles that contain DNA include
a. mitochondria. b. chloroplasts. c. ribosomes. d. lysosomes. e. mitochondria and chloroplasts.
Diastolic pressure is
a. the lowest blood pressure in the aorta. b. the pressure measured when the left ventricle is contracted. c. the peak pressure in the aorta when the left ventricle contracts. d. the difference between the highest and lowest pressures. e. an average of high and low pressures.
If we assume that carbon is the sole nutrient needed by sea slugs to drive their cellular respiration, then based on the graph, during which season(s) is it LEAST necessary for P. ianthina to act as a chemoheterotroph?
A) winter B) spring C) summer D) fall
The transfer of genes from dead bacteria to live bacteria is called transformation.
Answer the following statement true (T) or false (F)