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Biology: Characteristics of Living Things

The document discusses key characteristics of living things such as movement, respiration, sensitivity, growth, reproduction, excretion and nutrition. It describes the composition of living things including inorganic substances like water and mineral salts, and organic substances like carbohydrates, lipids, proteins and nucleic acids. The main life processes covered are nutrition, sensitivity, reproduction and respiration. Types of respiration and the circulatory and digestive systems are also summarized briefly.

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Yoli Lonjos
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46 views6 pages

Biology: Characteristics of Living Things

The document discusses key characteristics of living things such as movement, respiration, sensitivity, growth, reproduction, excretion and nutrition. It describes the composition of living things including inorganic substances like water and mineral salts, and organic substances like carbohydrates, lipids, proteins and nucleic acids. The main life processes covered are nutrition, sensitivity, reproduction and respiration. Types of respiration and the circulatory and digestive systems are also summarized briefly.

Uploaded by

Yoli Lonjos
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as RTF, PDF, TXT or read online on Scribd
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BIOLOGY

Characteristics of living things

· movement

· respiration

· sentivity (interaction)

· growth

· reproduction

· excretion

· nutrition

Vocabulary

rich: rico

lipids: grasas

both: ambos

Composition of living things

Inorganic substances

water

mineral salts

present in living and non-living things

only living things are made of cells

Organic substances
carbohydrates

lipids

proteins an nucleus acids

present only in living things

The life processes

nutrition: all living things take in nutrien to feed themselvesandot obtein energy.

heterotrophic: nutrition feed on oder living things ej: animals

autotrophic: they make their on food

sensitivity (interaction): living things receive information from both and internal environmentand they
produce responses.

reproduction: living things reproduce to make copies of themselves.

Eating habits

herbivores: they eat only plants or algae Ej: rabbits, garden sanils and butterflies.

carnivores: they eat other animals

· predators: they eat their preit

· scavengers: they eat dead animals.

Ej: liny, frog, spiders...

omnivores: they eat plants and other animals.

Ej: bears, foxes, human beings...

Digestive system

food faction: food thatb animals eats needs to be transform into simpler substances

digestive system: - mouth - oesophagus - stomach - small intestine - large intestine - anus.

two processes
mechanical digestion: food is chaved and ground in the mouth

chemical digestion: the digestives juices tranform food into nutriens

jugos digestivos nutrientes

RESPIRATON

When we breathe, we take in oxygen and we release carbon dioxide.

Types of respiration:

1. pulmonary respiration: (respiración pulmonar) - lungs Examples: mammals, birds, reptiles...

2. tracheal respiration: (respiracion traqueal) - trachea Examples: insects

3. gill respiration: (respiracion branquial) - gill Examples: fish, amphibian larvae...

4. cutaneous respiration: (respiracion cutanea) - skin(piel) Examples: earth worm, frogs...

CIRCULATORY SYSTEM

It is responsible for transporting nutriens to cells and collecting waste products from cells. Excretion is
the process of eliminating the waste products produce in cells.

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