What is the carrying capacity mean?

The number of individuals an area can carry

What does low biodiversity mean?

The ecosystem is healthy and can recover from disruption quickly

Biodiversity, aka biological diversity, usually refers to

the variety of species on Earth

Which of the following would be most effective in slowing the loss of biodiversity? Options: creating large parks/preserves in biodiversity hotspots, requiring every country to maintain a seed bank

creating large parks/preserves in biodiversity hotspots

Why is biodiversity important to ecosystems?

It helps populations adapt to ecological changes.

Where are many critical biodiversity hotspots located?

islands, tropical rain forests, and coastal areas

Which scenario is most likely to result in the lionfish having a major impact on the communities into which they were introduced? Options: With no natural predators, the lionfish population will become very large. Some native species of invertebrates will develop a resistance to lionfish venom.

With no natural predators, the lionfish population will become very large.

How can humans best help an endangered species avoid extinction? Options: they can feed the animals, they can put the animals in a zoo, they can protect the animal’s habitat, they can take the animal to new habitats

they can protect the animal’s habitat

Define genetic diversity

variation of genes within a species or population in a given area

Define ecosystem diversity

variety of ecosystems in a given area

The study of human populations.

A density-dependent limiting factor only becomes limiting if:

A population reaches its carrying capacity.

If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the field?

The bird population would decrease.

Calculating Growth Rate: Suppose a population of 22 rabbits has produced 47 young in one year. If 11 rabbits have died, what is the growth rate of the rabbit population?

The growth rate is calculated as follows: (Number of births - Number of deaths) / Initial population = (47 - 11) / 22 = 36 / 22 = 1.636.

Which statement sounds accurate based on the graph data? Options: The zebra and lions do not affect each other, when lions population increases, so does the zebra population, When the zebra population increases, it causes the lion population to also increase, when zebra populations go down, the lion population goes up.

When the zebra population increases, it causes the lion population to also increase

Population Biodiversity Test Flashcards

Student preview

57 questions

Show all answers

1.

FLASHCARD QUESTION

Front

An S-shaped curve is known as

Back

Logistic Graph

2.

FLASHCARD QUESTION

Front

Type 3 graphs show

Back

High death rates at a young age

3.

FLASHCARD QUESTION

Front

Type 1 curve represents what type of group?
Options:
Birds
Humans
Trees and plants
Marine life

Back

Humans

4.

FLASHCARD QUESTION

Front

Emigration is

Back

the movement out of an area

5.

FLASHCARD QUESTION

Front

What are survivorship curves?

Back

curves that describe the number of survivors over time

6.

FLASHCARD QUESTION

Front

Why don't populations grow indefinitely?

Back

limiting factors

7.

FLASHCARD QUESTION

Front

What is an example of a density-independent (Abiotic) limiting factor?

Back

pollution

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