Localized infections by pyogenic bacteria often form boils or abscesses
Indicate whether the statement is true or false.
Answer: TRUE
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Why is mutation described as the only process that can increase genetic variation?
A. It is the only process that can produce new alleles. B. It is the only process that changes allele frequency. C. It is the only process that cannot be influenced by artificial selection. D. It is the only process that is not random. E. It is the only process that can produce deleterious results.
Which of the following statements about embryonic development is NOT true?
A. A zygote undergoes cleavage, which increases the cell number, but not the volume of the egg cytoplasm. B. A primitive gut is also referred to as an archenteron. C. A blastopore is the opening into the primitive gut formed by gastrulation. D. A blastocoel is the fluid-filled cavity of a blastula. E. The primitive streak occurs in the morula stage of the embryonic development.
Choose the letter of the best match from the following:A. abscisic acidB. auxinC. ethyleneD. cytokininE. gibberellinA chemical derivative of adenine.
Fill in the blank(s) with the appropriate word(s).
In addition to the true amoebas (Rhizopoda), another group with pseudopods are the
A. Euglenozoa. B. Diplomonads. C. Stramenopila. D. Radiolarians. E. Alveolata.