Which of the following is an important invasive species?
A. Sumatran rhino
B. California condor
C. Zebra mussel
D. Northern bluefin tuna
E. Green pitcher plant
C. Zebra mussel
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Cells that can engulf foreign particles, and can ingest, kill, and digest most bacterial pathogens are called
A) red blood cells. B) phagocytes. C) reticulocytes. D) resistant cells.
Cells that are produced during meiosis have _____ of chromosomes and are referred to as ____.
a. one set; diploid b. two sets; diploid c. one set; haploid d. two sets; haploid
Why is malaria such an effective disease? What will be an ideal response?
Which of the following is true about mutations?
A. Mutations are changes in the nucleotide sequence of DNA. B. Mutations are always detrimental to the health of the organism. C. Mutations always involve a change in the resulting protein. D. Mutations are always caused by mutagens, including radiation, chemicals, or viruses.