Las plantas defensivas

Plants have developed various defense mechanisms to avoid being eaten by herbivores. These include physical defenses like spines and umbrella shapes, and chemical defenses such as toxins. Some plants, like cassia and acacias, use structural adaptations, while others, like nettles, employ chemical deterrents. These strategies help plants survive despite their inability to move away from threats.

What is the primary purpose of the needle-like spines developed by some plants?

• To support the plant structure

• To attract pollinators

• To enhance photosynthesis

• To deter herbivores from eating them

How do some acacias prevent giraffes from eating their leaves?

• By growing leaves at the top of the tree

• By producing a bitter taste

• By having slippery leaves

• By emitting a strong odor

What happens when a grasshopper touches a mimosa plant?

• The plant releases a toxic gas

• The plant's leaves close

• The plant changes color

• The plant grows faster

What is the function of the painful pickaxes used by nettles?

• To support the plant

• To store water

• To attract insects

• To inject toxic chemicals

What sensation is caused by the toxic chemicals injected by nettles?

• A cooling sensation

• A stinging sensation

• A sweet taste

• A numbing effect