final 7th Flashcards

(37 cards)

1
Q

What did Mendel use for his tests of heredity

A

pea plant

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2
Q
  1. What is a description of the alleles present in an individual
A

Genotype

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3
Q

What is a tool that would help predict patterns of heredity?

A

Punnett square

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4
Q

What is Phenotype

A

The observable traits of and organism passed on from parents to offspring

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5
Q

If a gene was homozygous recessive, how would you represent it?

A

2 lowercase letters that are the same - aa

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6
Q

How many copies of alleles does each person have

A

2

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7
Q

If a gene was heterozygous, how would you represent it?

A

A capital letter and a lowercase letter - Aa

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8
Q

What does heterozygous mean?

A

different

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9
Q

What is carrying capacity

A

Size of population that is supported by resources in a given location

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10
Q

What usually happens to a population of organisms when the region’s carrying capacity has been reached

A

It levels off

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11
Q

What is an ecosystem?

A

All the living and nonliving things in a area

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12
Q

What are populations influenced by?

A

Prey, water, sunlights, shelter, and other resources

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13
Q

Explain the relationship between population and community and ecosystem.

A

A population is different species that come together to form a population, multiple populations that interact with each other to make a community, and communities interact with all living and nonliving things to make an ecosystem

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14
Q

What happens when the needs of species are no longer met?

A

They migrate or die

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15
Q

What are some causes of extinction

A

Lack of resources, or habitat loss

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16
Q

When does overpopulation of species occur

A

species exceed carrying capacity

17
Q

Why is overpopulation so dangerous

A

it overtakes the ecosystem and messes up the food web

18
Q

What is the most common effect of overpopulation?

19
Q

What happens if an ecosystem is left alone

A

It will balance out

20
Q

What happens when population numbers increase?

A

resources are used up at a greater rate and will eventually run short

21
Q

What molecule is most responsible for the adverse effects of pollution and deforestation on Earth’s climate?

A

Carbon Dioxide

22
Q

What is global warming

A

The slow warming of earth’s atmosphere due to climate change

23
Q

What does anthropogenic mean?

A

caused by humans

24
Q

What does anthropogenic mean?

A

caused by humans

25
What are the greenhouse gasses?
Carbon Dioxide, methane and water vapor
26
What is happening to the weather that is a sign of climate change
extreme storms
27
What is a water cycle?
The movement of water among the various reservoirs of water around the planet
28
What is the most important source of energy that drives the water cycle
The sun
29
What are the basic forces that drive the water cycle
gravity and bouyancy
30
What does the global wind system and the resulting currents in Earth’s oceans move around the planet?
Thermal energy and moisture
31
What is precipitation?
Water that is released from clouds in the sky for example, rain, snow, and sleet.
32
What are temperatures affected by
Season and the water cycle
33
What is a meteorologist
Someone who studies weather
34
Name some of the tools they use
Thermometer, barometer, anemometer, and rain gauge
35
What is a front?
The boundary between two masses with different properties
36
When do clouds and rain often form?
when air contains as much water vapor as it can hold
37
Why do clouds and rain form?
When these water droplets get too heavy to stay suspended in the cloud, they fall to Earth as rain.