PPt de repaso 2 eso tema 11º

2. Why is reproduction important?
What are the two main types of reproduction?
ASEXUAL
SEXUAL
What are the main types of asexual reproduction?
FRAGMENTATION
Jellyfish
Regeneration, in earthworms and starfish
BUDDING
Sponges, hydra, corals

3. Explain the process:

4. What is an hermaphrodite?
Give examples

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

7. Gametes are produced.
A group of cells generate a bud on the surface of the
parent´s body.
A zygote is made by fertilisation
It doesn´t create variety
The offspring is similar to the parents.
The offspring is different from their parents.
High number of offspring
They reproduce fast

8. 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.

9. Cellular interaction
Interaction of organisms
Plants?
They can move their leaves to catch sunlight.
Animals
Escape from a predator
Camouflage
Hibernate

10. What are stimuli? Give examples
External stimulus
Mechanical
Chemical
Thermal
Light
Internal stimulus

13. How are stimuli detected?
By receptors. The sense organs
The receptors send the info to………….
The Central nervous system

14. What is the function of the nervous system?
Process the information
Elaborate a response
Send an order to the effector organs
What are the effector organs?
Muscles or glands

16. What are the main parts of the endocrine system?
GLANDS
What substances are secreted by glands?
Hormones
Hormones coordinate and regulate the functions of
different organs
Is the hormonal system controlled by the nervous
system?

22. Examples in animals
Fins in fish
Tales of tadpoles
Sinusoidal movements in reptiles
Muscular foot in molluscs