1) 1. Why do cactus plants have spines instead of leaves? a) A) To look pretty b) B) To stop animals from eating them c) C) To grow flowers d) D) To make food 2) 2. How do cactus plants store water? a) A) In their roots b) B) In their thick stems c) C) In their flowers d) D) In their spines 3) 3. Why do some trees lose their leaves in winter? a) A) Because they don’t like the cold b) B) To save water c) C) So they can grow new branches d) D) So animals can eat them 4) 4. What do roots do for a plant? a) A) Make flowers grow b) B) Hold the plant in the ground and take in water c) C) Help the plant breathe d) D) Stop the plant from falling over 5) 5. Why do some plants have brightly colored flowers? a) A) To scare animals b) B) To make people happy c) C) To attract bees and insects for pollination d) D) To help them grow faster 6) 6. Why do some trees have thick bark? a) A) To keep warm b) B) To store food c) C) To protect them from fire and animals d) D) To make nests for birds 7) 7. What helps water plants like lilies float? a) A) Their flowers pull them up b) B) They have air inside their leaves c) C) They have heavy roots d) D) They hold onto fish 8) 8. Why do plants in the rainforest have big leaves? a) A) To catch lots of sunlight b) B) To hold more flowers c) C) So animals can sit on them d) D) To stay dry 9) 9. What do climbing plants use to grow up walls or trees? a) A) Strong roots b) B) Tiny hooks or twisting stems c) C) Their flowers d) D) Their big leaves 10) 10. What helps desert plants survive with little water? a) A) They grow very tall b) B) They grow fast and then die c) C) They have deep roots and store water d) D) They eat small animals

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