Answer: plants have roots, stems, or leaves
Algae and plants are similar organisms because both are autotrophic organisms which are able to produce their own food by the process of photosynthesis. The main difference between the two is the level of complexity. Algae are comparatively simple organisms, their structure ranges from single celled to multi-cellular organisms. They do not exhibit true roots, stems and leaves like plants. The plants exhibit complex specialized structure for transport of water, nutrients and to perform reproduction. The smallest to largest plant will exhibit roots, stems and leaves.
The Central Nervous System is made up of the brain and the spinal cord.
Biotechnology allows farmers to grow more food on less land using farming practices that are environmentally sustainable. Through biotechnology:Seeds yield more per acre, plants naturally resist specific insect pests and diseases, and farming techniques improve soil conservation.
I would say that the answer to this question is most likely B or D.