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Semester 1 Final Biology

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1.
1 point
Natural disturbances, such as fires or hurricanes, can result in
2.
1 point
What are some examples of density- dependent factors
3.
1 point
Organisms that live near or on the ocean floor are called
4.
1 point
Autotrophs are organisms that
5.
1 point
To convert nitrogen gas into ammonia is what?
6.
1 point
How do scientists divide the ocean into zones?
7.
1 point
What are the two main types of freshwater ecosystems?
8.
1 point
In a tropical rain forest, the dense covering formed by the leafy tops of tall trees is called the
9.
1 point
The greenhouse effect causes an increase in
10.
1 point
Who were the first species to populate an area?
11.
1 point
A type of symbiosis in which both organisms benefit is called
12.
1 point
The maximum number of organisms of a particular species that can be supported by an environment is called
13.
1 point
What is a organism that relies on other organisms for its food supply
14.
1 point
What is not a characteristics of a population are its
15.
1 point
When an ecosystem is limited by a single nutrient that either is scarce or cycles very slowly this substance is called a
16.
1 point
The average, year- after- year conditions of temperature and precipitation within a particular region are its
17.
1 point
The movement of individual into an area is called
18.
1 point
In a nitrogen cycle, bacteria that live on the roots of plants
19.
1 point
What are the three factors that affect population size
20.
1 point
What is a niche?
21.
1 point
What is the process of denitrification?
22.
1 point
Density -independent limiting factors include
23.
1 point
The demographic transition is complete when
24.
1 point
The scientific study of human populations is called
25.
1 point
The total mass of living tissue at each trophic level can be shown in a
26.
1 point
The different levels of organization within the biosphere from smallest to largest are...
27.
1 point
The series of steps in which a large fish eats a small fish that has eaten algae is a
28.
1 point
What is when the individuals in a population reproduce at a constant rate
29.
1 point
A relationship in which one organism is helped and another organism is neither helped nor hurt is called
30.
1 point
What are the three basic approaches for scientists in research?
31.
1 point
Each step in a food chain or food web is called what?
32.
1 point
A limiting factor that depends on population size is called a
33.
1 point
A type of symbiosis in which one organism benefits and the other is harmed is called
34.
1 point
What is the scientific study of interactions among organisms and between organisms and their environment?
35.
1 point
If a population grows larger than the carrying capacity of its environment, the
36.
1 point
Nutrients move through an ecosystem in
37.
1 point
What is age- structure diagrams
38.
1 point
All the biotic and abiotic factors in a pond form a
39.
1 point
The number of individuals of a single species per unit area is known as
40.
1 point
What are the three zones in the ocean?
41.
1 point
Which biogeochemical cycle does not involve a stage where the chemical enters the atmosphere
42.
1 point
What type of growth has a S-shape curve on a graph
43.
1 point
List the major biomes
44.
1 point
All of life on Earth exists in a region known as
45.
1 point
What is the main energy source for life?
46.
1 point
The range or area occupied by a population is its
47.
1 point
How many directions does energy flow?
48.
1 point
List and know the three zones of the Earth
49.
1 point
Groups of different species that live together in a defined area make up a
50.
1 point
What does not helps predict the population of countries
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