Which type of vascular tissue cell in a plant is dead at maturity?
A) vessel elements
B) companion cells
C) sieve-tube cells
D) parenchyma cells
Answer: A
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The microorganism Cryptosporidium parvum is a
A) fungus. B) bacterium. C) protozoan. D) virus.
The ground meristem gives rise to which of the following?
A. ground tissue B. tissue found between the dermal and conducting tissues C. a pith in the center of a plant stem D. parenchyma cells E. All of the choices are correct
Which blood component functions in transport of oxygen?
1.Erythrocytes (red blood cells) 2.Leukocytes (white blood cells) 3.Lymphocytes 4.Neutrophils 5.Platelets
Which type of DNA analysis is likely to be most effective when analyzing the ancient remains of a mummified body?
A. analysis of cDNA B. analysis of short tandem repeats C. whole genome sequencing D. analysis of mitochondrial DNA