Here are the answers to the multiple-choice questions: 12. Which of the following is the adaptation of white blood cells body protection? White blood cells, particularly phagocytes, have an irregular shape* which allows them to change form and engulf pathogens through phagocytosis. The final answer is $\boxed{\text{B}}$ 13. Which of the following groups of non-flowering plants has true leaves and proper stems? Ferns* are non-flowering plants (pteridophytes) that possess true leaves (fronds), stems (rhizomes), and roots. The final answer is $\boxed{\text{D}}$ 14. Identify part labelled T Part