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Vocabulary
Plant nutrition
Obtaining nutrients
Breathing
Circulation and excretion
100
The process by which an organism takes in and makes use of food substances.
What is nutrition?
100
photosynthesis
Plants make organic nutrients through , from water and carbon dioxide thanks to the energy of the sunlight.
100
feeding, digestion
The nutrition process in animals has two parts: and .
100
Gills
A mass of very soft skinned filaments:
100
through their body surface
How do simple animals eliminate waste substances?
200
The small openings on the undersides of most leaves.
What is stomata?
200
chloroplasts
Photosynthesis takes place in the:
200
It is the transformation of food into smaller parts to obtain organic nutrients from it.
What is digestion?
200
body surface, gills
Animals that take in oxygen through the water do it through their or the .
200
open, closed
Circulatory systems can be or .
300
A form of digestion wherein the breaking down of materials into smaller components takes place inside the cell.
What is Intracellular digestion?
300
It absorbs oxygen through the stomata and root hair cells.
When a plant respires it does what?
300
Yes, sponges have a digestive system. They carry out digestion through intracellular digestion.
Do sponges have a digest system? If so how is it carried out?
300
Sponges, jellyfish worms, and a few amphibians.
Types of animals that take in in air through their soft body surface?
300
Exchange surfaces
All other animals besides simple animals eliminate their waste substances through .
400
xylem sap
The mixture of water and minerals absorbed by the root:
400
The branches and the leaf veins
Substances in the plant are transported through vessels which run along the stem. What are these two vessels?
400
Gastrovascular cavities: Bag shaped structures with a single opening that are used for both the ingestion of food and the elimination of indigestible matter. Digestive tracts: Long tubes with one opening for food to go in and the other opening for going out.
What are the two types of digestive systems found in animals? Describe these two digestive systems.
400
internal surfaces, tracheae, lungs
Animals that take in oxygen through the air need with thin wet walls, such as the or the .
400
Circulating blood, vessels, and a pump.
All other animals need circulatory systems formed by: , , and a .
500
Bag shaped structures with a single opening that are used for both the ingestion of food and the elimination of indigestible matter.
What are Gastrovascular cavities?
500
The oxygen from photosyntheis is eliminated through stomata, CO2 is eliminated from respiration and root hairs.
What are three ways in which plants can eliminate waste matter?
500
They are very simple animals but do not have digestive glands.
Are annelids simple or complex animals? Do they have digestive glands?
500
The trachea are very thin tubes that lead out of the body through pores called spiracles and extend inside the animal where they branch out to the tissues. Most insects have tracheas. The lungs are two spongy organs formed by millions of minute cavies where oxygen passes into the blood. Amphibians, reptiles, birds, and mammals have lungs.
What are the differences between the trachea and the lungs? Which animals have tracheas? Which animals have lungs?
500
Excretion occurs in the respiratory organs and in the excretory organs. In the respiratory organs the CO2 from breathing is expelled in these organs. It goes from the circulating fluids to the environment. The excretory organs collect the waste matter from the fluids. Later they discharge them at the end of the digestive system.
What are the two types of exchange surfaces that excretion occurs in? What are their differences?