seeds dispersal

The purpose of seed dispersal is for the seeds to __________.

• germinate at the same time

• move to the same place and grow

• move further away from the parent plant

• compete with one another for minerals in the soil

State the way of dispersal for this seed/ fruit.

• Water

• Wind

• Explosive Mechanism

• Human and Animal

State the way of dispersal for this seed/ fruit.

• Wind

• Water

• Explosive Mechanism

• Human and Animal

What are the characteristic of the seeds dispersed by man and animals?

A: Can float on water

B: Edible flesh and smell nice

C: Have hooks or stiff hairs

D: Have wing-like structures and are light

• A and B only

• C and D only

• B and C only

• A , B and C only

Tags

NGSS.3-LS2-1

A mystery fruit was said to be dispersed by water.

How can one confirm this statement?

A: Place the fruit on water to see if it floats.

B: Find the mass of the fruit by putting it on a weighing scale.

C: Cut open the fruit to see if it has a fibrous husk.

D: Cut the fruit to see if it contain water.

• A and B only

• A and C only

• B and D only

• C and D only

State the characters ideal for dispersion by wind.

• Small, light and hair-like

• Big, light and fibrous husk

• Small, light and sharp hooks

• Big, light and explode

I have parachute like structures. What is likely my dispersal method?

• Water

• Wind

• Explosive Mechanism

• Human and Animal

I have hooks to attach to animal fur. What is likely my dispersal method?

• Wind

• Water

• Explosive Mechanism

• Human and Animal

I have hollow spaces within my fruit. What is likely my dispersal method?

• Wind

• Water

• Explosive Mechanism

• Human and Animal

My pod splits open and seeds are thrown out with a force. What is likely my dispersal method?

• Wind

• Water

• Explosive Mechanism

• Human and Animal