Russia - Ecosystems of the Arctic Flashcards
1
Q
producer meaning
A
they can make their own food from photosynthesis
2
Q
primary consumer
A
these are herbivores
-they only eat plants
3
Q
secondary consumer
A
- they eat the primary consumers
- may also eat producers
- some carnivores and some omnivores
4
Q
top predator
A
- top of the food web
- nothing eats them
- carnivores
5
Q
what do the arrows in the food web represent
A
the transfer of energy
6
Q
difference between a food chain and a food web
A
- a food chain is a strand of energy transfer within a food web
- food web is the entire ecosystem - much bigger
- food web’s include many food chains which overlap
- and show all of the interactions between each level
7
Q
decomposers in a food web
A
-break down dead plants/animals
-to pass nutrients into the soil
-the dead matter will turn into compost
-
8
Q
biodiversity
A
describes the large range of an ecosystem
-how many varied species are in an area
9
Q
Soil profile in The Russian Arctic
A
- active layer
- permafrost layer
- talik
10
Q
active layer of soil
A
- top layer of soil
- during the summer , it thaws
- during the winter, it freezes
11
Q
permafrost layer of soil
A
- frozen all year round
- biologically inactive
12
Q
talik layer in soil
A
- year round unfrozen ground
- lies beneath permafrost layer
