________ 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