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How many layers does the atmosphere have?
5
What percentage of nitrogen is there in the atmosphere?
78%
Name the atmosphere layers
Troposphere, stratosphere, mesosphere, thermosphere, exosphere
What do we find at aprox. 25 km of altitude?
The ozone layer
What pollutants cause acid rain?
Sulphur and nitrogen oxides.
What is a rock?
A natural aggregate of minerals
What are the two types of magmatic rocks?
Volcanic and plutonic
What do marble and quartzite have in common?
They both are metamorphic non-foliated rocks
Name at least four properties of minerals.
Shape, streak, colour, lustre, hardness, cleavage and density
What mineral is an ore for lead?
Galena
C, H, O, N, P, S are...
Primary bioelements
Name the two types of biomolecules
Organic and inorganic
Name one difference between prokaryotic and eukaryotic cells
Prokaryotic don't have a nucleus, but eukaryotic do.
What kingdoms contain living things without tissues?
Monera, Protist and Fungi
What scientist described a cell for the first time?
Robert Hooke
What are the three types of symmetry animals can have?
Bilateral, radial and asymmetrical
What kind of nutrition do animals have?
Heterotrophic
How many legs does a scolopendra have?
One pair (two) per segment
What are the three body segments in insects?
Head, thorax and abdomen
Roundworms, can be free-living or parasites. They are the...
Nematodes
What are the five classes of vertebrates?
Fish, amphibians, reptiles, birds and mammals
Which animal lays amniotic eggs, amphibians or reptiles?
Reptiles
Taxonomy: Name the order of the human species.
Primates
Which organ in snakes detects touch, taste and smell?
The tongue
Name the five types of fins fish can have.
Dorsal, pectoral, pelvic, anal and caudal
What are the four types of intraespecific relationships?
Families, colonies, groups and societies
Give an example of a bryophyte, a pteridophyte, a gymnosperm and a angiosperm.
Moss, fern, pine and sunflower (for example)
What the three functions of leaves?
To perform photosyntesis, transpiration and gas exchange.
What relationship is there between a clownfish and an anemone?
Mutualism
What do you call an underground stem?
A rhizome
