Unit B - Ecosystems and Population Change Flashcards
1
Q
littoral zone
A
shore to rooted plants, high biodiversity
2
Q
limnetic zone
A
open surface waters away from shore
3
Q
profundal
A
below penetration of light, limited life
4
Q
benthic
A
sediment surface, many decomposers
5
Q
oligotrophic
A
newer lakes, deep, cold, low nutrients, higher O2 levels
6
Q
eutrophic
A
older lakes filled with detritus, warm shallow, with lots of nutrients
7
Q
Levels of Classification
A
- Kingdom
- Phylum
- Class
- Order
- Family
- Genus
- Species
8
Q
prezygotic
A
before fertilization
9
Q
postzygotic
A
after fertilization
10
Q
punctuated euilibrium
A
quick changes (like a staircase)
11
Q
phyletic gradualism
A
gradual change (a gradual line)
12
Q
homologous structures
A
similar structure but different function
13
Q
analogous structures
A
similar function but different structure
14
Q
distruptive selection
A
favors either extreme
15
Q
stabalizing selection
A
favors the average
