33. Which of the following nitrogenous wastes requires hardly any water for its excretion? (A) amino acid. (B) urea (C) uric acid (D) ammonia

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

33. Which of the following nitrogenous wastes requires hardly any water for its excretion?
(A) amino acid.
(B) urea
(C) uric acid
(D) ammonia

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