Why is reproduction important?What are the two main types of reproduction?

ASEXUALSEXUAL

What are the main types of asexual reproduction?FRAGMENTATION

JellyfishRegeneration, in earthworms and starfish

BUDDINGSponges, hydra, corals

Explain the process:

What is an hermaphrodite?Give examples

Why is it called like that?. Explain it. Living things?

Gametes are produced.A group of cells generate a bud on the

surface of the parent´s body.A zygote is made by fertilisationIt doesn´t create varietyThe offspring is similar to the parents.The offspring is different from their parents.High number of offspringThey reproduce fast

Define interaction.Single-celled organisms. How can they

respond?By moving. Examples?

Algae, protozoa, move around to find food.By forming spores. Examples?

Bacteria, when environmental conditions are not favourable, in extreme conditions.

Cellular interactionInteraction of organisms

Plants?They can move their leaves to catch sunlight.

AnimalsEscape from a predatorCamouflageHibernate

What are stimuli? Give examplesExternal stimulus

MechanicalChemicalThermalLight

Internal stimulus

How are stimuli detected?By receptors. The sense organsThe receptors send the info to………….

The Central nervous system

What is the function of the nervous system?Process the informationElaborate a responseSend an order to the effector organs

What are the effector organs?Muscles or glands

What are the main parts of the endocrine system?GLANDS

What substances are secreted by glands?HormonesHormones coordinate and regulate the

functions of different organs

Is the hormonal system controlled by the nervous system?

Examples in animalsFins in fishTales of tadpolesSinusoidal movements in reptilesMuscular foot in molluscs