Secondary endosymbiosis occurs when a
a. photosynthetic eukaryote engulfs a photosynthetic prokaryote.
b. photosynthetic eukaryote engulfs a non-photosynthetic prokaryote.
c. photosynthetic eukaryote engulfs a non-photosynthetic eukaryote.
d. non-photosynthetic eukaryote engulfs a photosynthetic prokaryote.
e. non-photosynthetic eukaryote engulfs a photosynthetic eukaryote.
E
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When processing biologically contaminated specimens, the microbiologist is susceptible to exposure through all of the following except:
a. exposure through mucous membranes. b. a break in the glove. c. a cut on the patient's wrist. d. breathing in aerosolized droplets.
Which of the following most directly gives rise to primary vascular tissues?
a. protoderm b. apical meristem c. ground meristem d. vascular cambium e. procambium
The main site of food absorption in the human digestive system is the
A. stomach. B. esophagus. C. small intestine. D. large intestine. E. rectum.
Through genetic engineering, it is possible for scientists to identify the sequence of bases in DNA, determine the location of certain genes in DNA, and create more DNA from DNA samples
Indicate whether the statement is true or false