7. More than 80% of Earth's plants are flowering plants. Flowers are very important, as they help plants reproduce.
Why are flowers important? How do they help plant species survive?
Choose three (3) correct statements.
A. Fruits with seeds may be eaten or carried away by animals. This helps seeds spread where they can grow new plants.
B. Flowers attract animals that spread pollen. Pollination leads to fertilization.
C. Flowers provide shade to a plant's roots and help them absorb water and nutrients.
D. Flowers help make fruits that contain seeds. Seeds can grow into new baby plants.
A. Fruits with seeds may be eaten or carried away by animals. This helps seeds spread where they can grow new plants.
B. Flowers attract animals that spread pollen. Pollination leads to fertilization.
D. Flowers help make fruits that contain seeds. Seeds can grow into new baby plants.
8. Animals often eat plants for food. If a plant is eaten, it may die. Which of the following features help plants protect themselves from being eaten?
Choose 3 (three).
A. oils on the plant that can cause pain or an itchy rash
B. poisonous/toxic parts (fruits, leaves, bark, flowers)
C. sharp thorns or spines (on stems or leaves)
D. deep roots that absorb water and nutrients from soil
A. oils on the plant that can cause pain or an itchy rash
B. poisonous/toxic parts (fruits, leaves, bark, flowers)
C. sharp thorns or spines (on stems or leaves)
9. Some plants can make more of themselves by splitting off parts of themselves (like roots, leaves, or stems) that can grow a new plant. This creates an identical copy of themselves. What is this an example of?
sexual reproduction
asexual reproduction
pollination
fertilization
This is an example of asexual reproduction.
10. Plants respond to the environment around them. Which of the following are ways that some plants can respond to their surroundings to help them survive?
Choose 3 (three).
Chemitropism: communicate with other plants by releasing chemicals into the air
Thigmotropism: stems curling around nearby objects (to grow secure and taller)
Phototropism: leaves turning and growing toward light
Gravitropism: roots growing down (into the soil to anchor and reach water)
Thigmotropism: stems curling around nearby objects (to grow secure and taller)
Phototropism: leaves turning and growing toward light
Gravitropism: roots growing down (into the soil to anchor and reach water)