Question

module 3 exam
25 - 26 biology a / module 3: plants

1. which most likely describes a seed dispersed by animals?

○ surrounded by a seed coat that is not easily digested
○ attached to a structure that looks like a sail
○ enclosed in a seed pod that opens quickly when it dries out
○ light, buoyant, and hollow so that they float

Explanation:

• Option 1: When seeds are dispersed by animals, they often have a seed coat that is not easily digested. This allows the seed to pass through the animal's digestive system intact and be deposited in a new location.
• Option 2: A structure that looks like a sail is more likely for wind - dispersed seeds (e.g., dandelion seeds).
• Option 3: A seed pod that opens quickly when dry is a characteristic of explosive seed dispersal (e.g., some legume plants).
• Option 4: Light, buoyant, and hollow seeds are adapted for water dispersal (e.g., coconut).

Answer:

surrounded by a seed coat that is not easily digested