Seed Dispersal
Name four types of Seed Dispersals
Seed dispersal increases the chances that some seeds will find a suitable place to grow, and can help reduce competition between parent and offspring.
What are the three essential elements needed for seed germination? Soil is not part of the answer.
All seeds need water, oxygen, and proper temperature in order to germinate. Some seeds require proper light also. Some germinate better in full light while others require darkness to germinate. When a seed is exposed to the proper conditions, water and oxygen are taken in through the seed coat.
Why might some plants have thorns?
To stay safe from animals that want to eat the plant
____ uses the energy of sunlight to produce glucose during photosynthesis
chloroplast
What part of the plant absorbs sunlight and carbon dioxide to make food for the plant?
Leaves
What is seed dispersal?
Seed dispersal is the process by which plants spread their seeds away from the parent plant to increase the chances of successful germination and growth in new locations.
What is the tiny plant inside a seed called?
The embryo
An adaptation that helps a cactus live in the desert is its
Thin, spiny needles
____ control center of the cell; contains DNA
Nucleolus
Which part of the plant supports the leaves and carries water, minerals, and food throughout the plant?
Plant Stem
Give an example of a plant that uses wind dispersal.
Dandelion, milkweed, maple tree.
What part of the seed provides food for the baby plant?
The cotyledon
Desert plants have a coat of wax on their leaves to
keep water from escaping
Surrounds the internal cell parts; controls the passage of materials in and out
Cell wall
What part of the plant starts the life cycle?
Seed
Dandelion, milkweed, maple tree.
Coconut palm, mangrove.
What is the outer covering of a seed called?
The Seed Coat
Why does a cactus have shallow roots while other desert plants have deeper roots?
Shallow roots help to absorb water quickly before it evaporates.
vesicle that provides storage of water and other materials; if full, provide support
vacuole
What is the female part of the flower called?
Stigma
How do animals help with seed dispersal? 2 Methods
Animals can eat fruits containing seeds, then deposit the seeds in new locations through their droppings, or seeds can get stuck to their fur and be carried away.
What happens to a seed when it first starts to germinate? This is a visual answer.
The seed absorbs water and swells.
Carnivorous plants eat?
Bugs
Produces energy in the cells
Ribosome
What is the male part of a flower called?
Stigma