You are presented with the quiz "How are plant cells around the vascular tissue created?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "secondary meristem is located within and around the vascular tissues" and "plant cell types rise by mitosis from a meristem ". So, what's the best answer to the question?
OPTIONS:
- meiosis
- metastasis
- haleotosis
- vegetation
- shrub beds
- made
- homogenous
- mitosis

Answer: mitosis

You are presented with the quiz "What lacks a centralized nervous system?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "echinoderms lack a centralized nervous system" and "echinoderms are represented by the starfish". So, what's the best answer to the question?
OPTIONS:
- humans
- dogs
- our planet
- insects
- barnacles
- starfish
- birds
- Pesticides

Answer: starfish

You are presented with the quiz "What can lead to cancer in genes that control the cell cycle?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "mutations that lead to cancer usually occur in genes that control the cell cycle" and "many carcinogens are capable of causing gene mutations". So, what's the best answer to the question?
OPTIONS:
- radiation
- adding heat
- competition
- ice
- bacteria
- air
- carcinogens
- Smoking

Answer:
carcinogens