The unique double shells of diatoms are made of
A. cellulose.
B. silica.
C. chlorophylls.
D. agar.
E. proteins.
B. silica.
Biology & Microbiology
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Which one of the following cellular processes occurs in the nucleus of a eukaryote?
A. transcription B. RNA processing C. translation D. DNA replication
Biology & Microbiology
What is the recommended age of vaccination for MMR (measles, mumps and rubella)?
a. 11-12 years b. 1-4 months c. Birth-2 months d. 12-15 months e. 4-6 years
Biology & Microbiology
Which of the following can be found in an animal cell, but not a plant cell?
a. centrosomes b. mitochondria c. DNA d. ribosomes
Biology & Microbiology
Filtration of the blood occurs when fluid is forced by blood pressure out of the
A) distal tubule. B) glomerular capsule. C) glomerulus. D) nephron loop. E) proximal tubule.
Biology & Microbiology