Chapter One Exam Flashcards

Part Two

1
Q

What is required by all organisms for the manufacture of DNA?

A

Phosphorus

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2
Q

what species’ offspring are more likely to survive?

A

K selected

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3
Q

In the carbon cycle, plants remove carbon from the atmosphere through the process of what?

A

photosynthesis

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4
Q

What are the seven biomes?

A

Ice, tundra, desert, mountain, boreal forest, temperate forest, grassland, Mediterranean scrub, tropical rainforest, tropical seasonal forest, savanna, tropical scrub

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5
Q

a plant harnessing solar energy from the sun is an example of?

A

energy flow

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6
Q

how do you calculate population growth rate?

A

you subtract the death rate from the birth rate

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7
Q

what is the difference between interspecific and intraspecific competition

A

Interspecific is different species competing and intraspecific is the same species competing

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8
Q

the sensitivity of a species to changes in the environment is often what makes it a useful _______ for the management of an ecosystem

A

indicator species

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9
Q

a tick attaching to a human to feed and harms the human in the process is a ______ relationship

A

Parasitic

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10
Q

What is a pioneer species?

A

a species that moves into an area at later stages of ecological succession

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11
Q

what is the number one reason for the endangered status of many species

A

habitat destruction

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12
Q

is a long life a characteristic of an r-related species?

A

No, r-related species have a short life span

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13
Q

why is earth a closed system in regards for matter

A

because matter really never leaves or enters earth. “because matter remains in the biosphere”

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14
Q

name the 4 things that influence population size

A

predators, disease, sufficient habitat, presence of pathogens

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15
Q

what population growth produces an S curve when plotted over time?

A

logistic

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16
Q

what indicator species gave ecologists early warning signs that the everglades ecosystem was suffering from drastic changes caused by human impact?

A

wood stork

17
Q

which regulation is more likely to promote species diversity in the ecosystem?

A

top-down regulation

18
Q

who undergoes photosynthesis to generate energy?

A

producers

19
Q

what is one negative effect of a low-density population

A

inbreeding