________ is the most abundant class of antibodies in serum.
What will be an ideal response?
IgG; Immunoglobulin G
Biology & Microbiology
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Evidence from vascular tissues and developmental stages suggests that stamens evolved from:a
stems. b. pollen grains. c. roots. d. leaves. e. megasporangia
Biology & Microbiology
The interaction of genes and environment produces a specific
A) phenotype. B) gene pool. C) population. D) genotype. E) allele.
Biology & Microbiology
Members of Chondrichthyes differ from members of Osteichthyes by having a ________.
a) jaw b) bony skeleton c) cartilaginous skeleton d) two sets of paired fins
Biology & Microbiology
Bacteria have a region of the cytoplasm known as the ________, which is not bounded by a membrane but contains the chromosome.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology