What lacks a vertebral column, or backbone?\nOptions:\n- (A) fungi\n- (B) parasites\n- (C) cacti\n- (D) Leptospirosis\n- (E) insects\n- (F) bushes\n- (G) Conifers\n- (H) anostrans
Step-by-step reasoning process below:
(H)
Invertebrates are animals that lack a vertebral column, or backbone.

Principal invertebrates are anostracans and ostracods.

Anostrans lack a vertebral column, or backbone.

.

The final answer: (H)