Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Bio 20 > Unit B Sean and Vanja > Flashcards

Unit B Sean and Vanja Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

What is in topsoil?

A

Mostly organic with small amounts of rock

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is in topsoil?

A

Mostly organic with small amounts of rock

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is ecology?

A

The study of an ecosystem.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is an Ecotone?

A

Transition area that contains species from bordering ecosystems

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is a niche?

A

Role, place in food web, habitat. Breeding

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Name 4 terrestrial biomes

A

Tundra, taiga, deciduous forest, grassland

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the limnetic zone?

A

The middle of lake that gets sunlight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Which biome has the most precipitation?

A

Deciduous forest, tiaga, muskeg, grassland

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

More nutrients towards the too or the bottom of soil layers

A

Top

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the main factors that affects sunlight?

A

Latitude

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the layers of a lake?

A

Epilimnion
Thermocline
Hypolimnion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

4 factors of biotic potential?

A

Birth potential
Capacity for survival
Breeding frequency
Length of reproductive life

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Ex. Of abiotic and biotic limiting factors?

A

Too much or too little light

Not enough food

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Define Law of Minimum

A

The nutrient in least supply limits growth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Eg. Of density dependant and independent factors

A

Independent: flood
Dependant: disease

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is eutrophication?

A

High nutrient level in a lake

Eventually all lakes dry up

17
Q

What is taxonomy?

A

The science of classifying organisms.

18
Q

What are the parts of a binomial nomenclature?

A

Genus

Species

19
Q

Advantages of binomial nomenclature?

A

Common language for all scientists

Identifying organisms

20
Q

7 main levels of taxa?

A 
Kingdom
Phyla
Class
Order
Family
Genus
Species
21
Q

What is phylogeny?

A

History of the evolution of a species

22
Q

What is biogeography?

A

The study of the biological distribution of life earth

23
Q

Define endemic

A

Species that is found in only one location

24
Q

Homologous feature?

A

Similar structure, different function

25
Q

Analogous feature?

A

Same structure, different origin

26
Q

3 types of mutation

A

Loss of a entire section of DNA
duplication of section
Changes to sequence

27
Q

Example of beneficial mutation?

A

Larger heart for better blood flow

28
Q

Define speciation?

A

The formation of a new species

29
Q

What is allopatric speciation?

A

Speciation by reproductive isolation

30
Q

Theory of gradualism?

A

Idea that speciation occurs slowly

31
Q

Theory of punctuated equilibrium?

A

Idea that species evolve rapidly followed by little change

Bio 20 (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions