• Obtaining nutrients:• The female lion are the responsable of bring the food

to the lion family. They catch ñu, zebras and jirafs

• Breathing:• The lions have lungs, so they breath like humans.

• Circulation: Lions have a closed circulatory system.

• Excretion: They spell the waste substances though excretory organs.

• The lions perceives the information with the five senses as humans.

• They also have spinal column wich connect all the nerves.

• They have photoreceptors: eyes.• They have mechanoreceptors: ears• They have chemoreceptors: nostrils and

tongue.

• The lions have a nervous system which capture signals and gives orders to carry out coordinated responses.

• The endocrine system produces hormones that provoke the responses to the stimuli.

The lion have different effectors.

• In the case of movements they have very powerfull:

– legs, that they use it to impuls

– Jaws, that they use to kill their preys.

• Lions reproduce by a sexual way, so the lions can be males or females.

• Lions do internal fertilization wich take place inside female through copulation.

• The time that the embrion is in the placenta is about 110 days.

• The baby lions born blind until the first week.

• With three weeks they start to walk, in the period before this the mothers have to transport their babies to other places very frecuently to prevent an atack to their babies.

• The orange tree absorbs nutrients through roots and CO2 .

• Later it performs photosyntesis, it mix whit water and the mineral substances to create phloem sap.

• The phloem sap is distributed through all the tree to fit all the cells.

Interaction function in plants

• The orange tree is a tropism because:– Because the stem grows towards a stimuli that is

the sun (Phototropism).– Because the roots grows towards the gravity

(Geotropism).– Because the roots grows to the water in soil.

(Hydrotropism).– Because when the tree is small you can put some

guides to direct the tree. (Thigmotropism).

• The orange tree have a sexual reproduction.

• The orange tree is an angiosperm, so it has flowers and it reproduce through the pollen.

• The pollen is transported by the wind or bees to other flowers to produce seeds.