38. Internal and external fertilization both (A) produce zygotes. (B) occur only among invertebrates (C) occur only among terrestrial animals (D) depend on the use of intromittent copulatory organs

2. Genetically engineered plants (A) are more difficult to engineer than animals. (B) include a transgenic rice plant that can help prevent are more difficult to engineer than animals t vitamin A deficiency. (C) are being rapidly developed, but traditional plant breeding programs are still the only method used to develop new plants. (D) are able to fix nitrogen themselves

38. Internal and external fertilization both
(A) produce zygotes.
(B) occur only among invertebrates
(C) occur only among terrestrial animals
(D) depend on the use of intromittent copulatory organs

相關試題

相關試卷