The Biosphere section A Flashcards

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1
Q

what is the biosphere

A

The biosphere revers to the area and around the earth where life is found

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2
Q

what can the biosphere be divided into to

A
  • Atmosphere
  • Lithosphere
  • hydrosphere
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3
Q

what is found in the biosphere

A

various ecosystems

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4
Q

name the 5 layers of the atmosphere from top to bottom

A
Exsosphere 
thermosphere / ionosphere 
mesosphere 
stratosphere
troposphere
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5
Q

explain the troposphere

A

the troposphere is the layer closest to the earth and it is the only layer where living organisms can survive or are found. It consists mainly of nitrogen and oxygen. other gases like hydrogen and carbon dioxide are also found in the troposphere

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6
Q

name the layers of EARTH

A
  • crust
  • mantle
  • outer core
  • inner core
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7
Q

what is the lithosphere

A

the upper part of the earths crust, whereon and wherein living organisms are found.

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8
Q

what does the lithosphere consists of

A

rock

soil

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9
Q

what animals does live in the lithosphere

A
insects 
small animals 
plants 
microorganisms 
ants 
earthworms
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10
Q

name the plants in the lithosphere

A

potato plants

microorganisms like protozoa

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11
Q

what does protozoa do

A

the decomposition of dead plant and animal matter

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12
Q

what lives on top of the lithosphere

A
mammals 
reptiles 
bird
amphibian 
invertebrates
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13
Q

what is the hydrosphere

A

the hydrosphere is composed of all the different bodies of water on earth.

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14
Q

give 6 examples of hydrospheres

A
Oceans
Lakes
Dams
Rivers
Underground rivers 
reservoirs
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15
Q

name 2 examples of plants /animals that use water as a habitat

A

water lily

fish eagle

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16
Q

what does these plants/animals depend on and for what

A

they depend on organisms for food and nutrients

17
Q

why do other animals need water

A

reproduce

18
Q

what does micro organisms like

A

plankton and amoeba are found in large quantities in the hydrosphere and serve as a source of food for smaller organisms

19
Q

name the 7 life processes

A
  • Nutrition
  • Reproduction
  • Respiration
  • Excretion
  • Growth
  • Sensitivity
  • Movement