5 Flashcards
1
Q
Grazer-scrapers
A
Feed on hard substrate and algae.
2
Q
Shredders
A
Feed on CPOM (eg Asellus aquatics).
3
Q
Collectors
A
Feed on FPOM (eg mosquito larvae).
4
Q
Suspension (or filter) feeders
A
From the water column.
5
Q
Browsers (collectors-gatheres)
A
From the bottom substrate.
6
Q
Simple life cycle
A
Like the vertebrates have (som oss).
7
Q
Complex life cycle
A
Two or more larval stages + metamorphosis (the most common life cycle among aquatic invertebrates and amphibians).
8
Q
Sexual reproduction
A
High cost, high genetic variety.
9
Q
Asexual reproduction
A
Fission or parthenogenesis.
Low cost, fast population growth, no genetic variety.
10
Q
Cyclic parthenogenesis
A
Asexual reproduction but in an adverse environment, temporarily sexual reproduction.
Common in notiferes and cladocerans.
