Reproductive Strategies in Plants

Question 0

what is a disadvantage when it comes to reproducing sexually

Answer 0

they can’t move

Question 1

do plants have sex organs

Answer 1

• yes

- almost all take the form of flowers

Question 2

problem 1: plants have no way of having the sperm and egg meet (fertilization)

Answer 2

• uses environment to get it done
• rely on wind and water to carry the sperm
• advanced plants rely on insects to help
• flowers produce sweet nectar that insects eat
• insect visits flower, sperm (pollen) sticks to insect
• insect goes to another plant and sperm falls off and meets the egg

Question 3

problem 2: once fertilization has taken place and seeds have developed plants need to disperse these seeds, but plants next to the parent will compete for nutrients and light

Answer 3

• plants use cones, the seeds are very light and are carried away by wind
• flowering plants are housed in a fruit which develops in the female part of the flower
• fruits are designed to hold seeds and disperse them by:
• wind, water, exploding, catch onto fur/feathers, or to be eaten
• fruits are designed to be eaten, seeds are indigestible so the animal poops it out after walking dispersing the seeds