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Ecosystems

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Nakia Fritsch

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4y ago
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Cards in this guide (14)
What is a nonnative species

A species that does not normally live in an area

Who is the most common frog in the world

Most Likely The Tree Frog, I am A HUGE Frog Fan. Hopefully My Answer Helps.

What did Malthus think would limit the population size

Food supply

How does high biodiversity affect an ecosystem

It makes the ecosystem able to survive disturbances.

How do peppered moths after the Industrial Revolution show the process of natural selection

The peppered moth had white bodies and wings, peppered with black. This coloration blended well into the original British countryside, hiding them from their predator the birds. Factories of the early industrial revolution covered everything with soot. Now the white stood out against the black surroundings making them easy targets for birds. Over time the white moths were wiped out. But, a few of them were darker in color, these survived and multiplied such that the white peppered moth was replaced buy the dark ones.

Black moths were selected for when the trees turned black.

the moths with the high fitness were selected for

The black moths were more fit for survival, so their phenotype frequency increased.

When will natural selection occur

Natural selection occurs when four conditions are met:

1. There is variation among individuals.

2. That variation is at least partially heritable.

3. That variation is linked to differential reproductive success.

4. More individuals are born than can survive and reproduce.

Which of the following would be the best method for randomly determining how many eggs an imaginary bird lays in a simulation

Rolling a six sided number cube and using the number on the top side.

What is a reproductive strategy

The method an organism uses to produce offspring

the way that a species creates offspring

What way leads to competition between two species

An overlap in their niches

What principles is not part of Darwin's original theory of evolution by natural selection

Random processes are not part of the theory of evolution by natural selection.

What on a tree is adaptaion

hereeeyy

Why is it impossible for exponentional growth to continue forever

It is impossible for exponential growth to continue forever for a few reasons. The population will run out of food, water, and space to live.

As the snow melt from atop mountain in the spring the river below begins to flood what type of disturbance is this

Cyclical

What best describes the change in salinity in an estuary at low tide

Salinity falls as the out flowing tide brings in more fresh river water.

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