Ecology Fundamentals Flashcard

Front

Which of the following is an example of a community in the ecological hierarchy? A single bearded dragon, All bearded dragons in one desert, Bearded dragons, insects, cacti, Desert life + sand, rocks, sun

Back

Bearded dragons, insects, cacti

Front

Describe the biosphere.

Back

Earth’s land, water, air, organisms

Front

Which of the following best represents a population?

• All the penguins living on an ice sheet.
• All the animals living in a zoo.
• All the plants and animals in a forest.
• All the fish in different oceans.

Back

All the penguins living on an ice sheet.

Front

Which diagram best represents high population density?

Back

A square with many dots closely packed together

Front

Dispersion (in population biology)

Back

The spatial distribution of organisms in a population.

Front

Why might a population exhibit a clumped dispersion pattern?

Back

Because individuals are attracted to each other or to specific resources.

Front

Which of the following is NOT a reason for random dispersion of seeds in plants?

• Seeds being planted in rows by farmers
• Wind blowing seeds
• Birds dropping seeds from their feet
• Seeds dispersed through animal feces

Back

Seeds being planted in rows by farmers

Front

Explain how random population dispersion can benefit a plant species like dandelions.

Back

It increases the chances of seeds landing in a variety of environments, promoting survival.

Front

What is the main reason for uniform/even population dispersion in animals like lions?

Back

Due to limited resources and territorialism

Front

What is the main reason for clumped population dispersion in animals?

Back

Unequal distribution of resources and protection