Communities
Human Population Growth
World Populations
Biomes
Potpourri
100

Environmental factors that affect an organism's ability to survive in its environment.

What are limiting factors?

100

The study of human population growth characteristics.

What is demography?

100
A disorder where a person is normal or diploid for all chromosomes except #21, which has 3.
What is Trisomy 21 or down syndrome?
100

The source of energy for all living things.

What is the sun?

100

An organism that feeds directly on plant material and is the second tier of the pyramid of numbers.

What is a primary consumer?

200

These would be four examples of limiting factors:

What are food, water, shelter, space?

200

Population growth whose rate becomes ever more rapid in proportion to the growing total number of size.

What is exponential growth?

200
Only one copy of the mutated gene is necessary for a person to be affected by the disease.
What is an autosomal dominant disorder?
200
Energy is released when ATP loses this atom.
What is a phosphate?
200

A diagram showing the chromosomal makeup of an organism's cell that can be examined for irregularities.

What is a karyotype?

300

Number of organisms of one species than an environment can support.

What is the carrying capacity?

300

The current world population.

What is 7.6 billion?

300
An autosomal recessive blood disorder that is actually an evolutionary advantage for heterozygotes against malaria in some parts of the world.
What is sickle-cell anemia?
300
An organism dependent on obtaining organic food from the environment because it cannot synthesize its own from the sun.
What is a heterotroph?
300
The loss of water from the leaf of a plant that is thought to be the pressure that drives water from roots to leaves.
What is Transpiration?
400

To grow the deer population on the Kaibab plateau, all of these were removed.

What are predators?

400

At the current growth rate the world population will take this long to double.

What is about 58 years?

400
A genetic disorder where the person is missing one X chromosome and is infertile.
What is Turner's syndrome or monosomy X?
400
The first stage of cellular respiration.
What is glycolysis?
400
A special kind of cell capable of renewing itself under certain conditions and can differentiate into almost any cell type in the body.
What are stem cells?
500

Populations of species can remain balanced over extended periods of time.

What is false!

500

This continent has the highest percent of wealth per capita.

What is North America?

500
A type of disorder that can only be passed down maternally.
What is a mitochondrial disease?
500
A metabolic process that takes place when oxygen is not present.
What is anaerobic?
500
A term used to describe cell division for Prokarotes.
What is binary fission?
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