Exam 1 Study Guide
Home > Flashcards > Print Preview
The flashcards below were created by user
on FreezingBlue Flashcards
. What would you like to do?
Environmental Science is a?
- systematic approach learning about the environment
- systematic study of our environment and out place in it
Which of the following is not a molecule?
Carbon: a molecule is made up of more than two atoms
There is/are usually _____ tolerance limits responsible for limiting the number and location of species, hoever some organisms have _________________ that limits thier distribution.
- a specific critical factor
Malthus and Marx:
disagreed about the root causes of overpopulation poverty
Thomas Malthus (1798): human populations will outstrip thier food supply and collapse into starvation, crime, and misery.
Karl Marx: populatoin growth resulted from poverty, resource depletion, pollution, and other social ills.
The location of specific biomes can be predicted based on...
precipitation and temperature
In the normal I=PAT, which of the following would be representative of the A?
I=PAT A is the affluence leve
in the example, A means driving an SUV
Name the Biomes
- Tropical Rainforest
- Tropical Savannah
- Temperate Grassland
- Temperate Forest
- Boreal Forest
- Temperate Rainforest
Name the biome with lots of water falls
- Tropical Rainforest
- occur where rainfall is abundant-more than 200 cm (80 in) per year
What land is submerged?
- wetland, swamp
- Wetlands are shallow ecosystems in which the land surface is saturated or submerged at least part of the year
Name the biome with high latitude, few trees, and low species.
- Compared to other biomes, tundra has relatively low diversity
- Temperatures are below freezing most of the year , making water unavailable to plants
- Tundra occurs at high latitudes or on mountaintops
Warm and areas with low temperature
- Deserts occur where precipitation is uncommon and slight, usually with less than 30 cm of rain per year
Name the biome that is 50-60 degrees with low temperature and has slow growing vegetation.
Name the biome that is hot year round.
Name what 3/4 of the planet is defined by salt water
Name the biome that has mid-latitude, very high precipitation, and supports living.
Name the biome with rich soils.
- Temperate Grassland
- As in tropical latitudes, temperate (midlatitude) grasslands occur where there is enough rain to support abundant grass but not enough for forests
Methodical and logical
What is the difference from extinction now and in the past?
in the past it was a set rate and now it is due to human influence
- interbred with each other and capable of offspring
- species are distinct organisms that persist because they can produce fertile offpsring
What is one selected pressure on animals in the desert environment?
Energy is the ability to what?
- Both move an object and transfer heat from one object to another
- Energy is the ability to do work such as moving matter over a distance or causing a heat transfer between two objects at different temperatures
What is symbiosis?
- When animals can coexist with one another
- Symbiosis is a process where two or more species live intimately together.
- There are three major types of symbiotic relationships: Mutualism, Commensalism, and Parasitism.
What is the P in I=PAT?
What is the sympatric specification?
- When two species interact with each other
- Species arise in the same location as the ancestor species
Especially effective strategy for reducing intra specific competition is?
different ecological niches for juveniles and adults
What is the shape of the human growth curve in the past 800 years?
What is the difference between a K-selected and an R-selected species?
- R-selected is having many offspring but a short life span
- K-selected is having a small number of offspring with a long life span taking care of them
Describe how photosynthesis works?
- CO2 plus Hco sunligh C6,H12,O6 produces sugar molecules and energy
- Photosynthesis converts radiant energy into useful, high-quality chemical energy in the bonds that hold together organic molecules
- Animals eat plants-or other animals that have eaten plants-and break down the organic molecules in their food through cellular respiration to obtain energy
Why do many demographers believe that generally birth rates decrease?
Yes because women are more educated now and they are learning to use birth and decide whether or not they want to have children
What are the steps of the scientific method?
- Identify Question
- Form Testable Hypothesis
- Collect Data To Test Hypothesis
- Interpret Results
- Report For Peer Review
- Publish Findings
What kind of specification arises from geographic isolation?
- Geographic isolation results in allopatric speciation- species arise in non-overlapping geoprahic locations
- (squirrel example)
Historically, the greatest threat to grassland conservation is?
What is the difference of hypothesis and theory?
Hypothesis is an educated guess and a theory is generated and agreed upon by scientists
Zero population growth (ZPG)occurs when?
birth + emigration = death + immigration
What is the difference between a life span and a life expectancy?
Expectancy is the average and life span is the longest someone has lived
What are the four categories of organic compounds?
The typical pattern of following death rates and due to improved living conditions that accompanion economic development is knows as a _____________________.
Name one environmental problem and a sign of hope for the problem.
Population is a problem and women being more educated is a hope for the problem
What is a sustainable development?
- providing good for the environment
- pollution has been decreased and the population has stabilized in most industrialized countries and even in some very poor countries where democracy has been stabilized
- Over the past 25 years, the average number of children born per women worldwide has decreased from 6.1 to 2.6
What are two important nutrients in fertilizers?
Nitrogen and phosphorous fuel
Why are there less tertiary consumers than plants in the environment?
What is the difference between a population and community?
- A population consists of all the members of a species living in a given area at the same time
- All of the populations of organisms living and interacting in a particular area make up a community
How do animals get thier energy?
The first law of thermodynamics and the law of conservation of matter are similar in that?
- under normal conditions neither
- according to the conservation of matter: under ordinary circumstances, matter is neither created nor destroyed, but rather is recycled over and over again
- the first law of thermodynamics states that enegy is conserved
What is the difference between an open and closed system?
- Open is when many different species can come in and closed is like in a zoo where they are closed in and other species cannot come in
- Open systems are those that receive inputs from thier surroundings and produce outputs that leave the systems
- A closed system exchanges no energy or matter with its surroundings
Ecological diversity is the measure of the number of?
niches, atrophic levels, and ecological pressures of biological community
Where does the independant variable go on a graph?
on the x-axis
What is an adaptation of a saguaro cactus?
the needles for protection and the ability to hold water
HIPPO what does it stand for?
- Habitation Destruction
- Invasion Species
- Over Harvesting
How might the dependant ratio affect the United States in the future?
- the number of non-working number ratio between working and non-working
- there are gonna be too many non-workers that will be sustained by the working which will be less
What is the difference of natural and manipulative experiments?
- natural experiments are in their own normal nature and a manipulative experiment has been manipulated by the researcher
- ex: an animal is seen in its habitual nature environment and in another way it is seen in a lab with a manipulated environment
Name two ways in which humans benefit from biodiversity?
medicine and food
In the partnership of lichen, the fungus provides ____________ and the relationship is best described as ____________.
- structure and moisture
- holding ability; mutualism
What is competitive exclusive principles?
two species when fighting
matter is anything that takes up space and has mass
The carrying capacity refers refers to the maximum number of animals that can be supported in an environment
What is the difference between inter and intra competition?
- competition among members of the same species is called intraspecific competition
- competition between members of different species is calle interspecific competition
A biological community productivity is a measure of what?
the amount of biomass produced in the community
What is the difference between utilitarian and biocentric conservation?
Utilitarian is cause its there
Name two adaptation of animals
- if all insects have six legs then all insects will have six legs
- logical reasoning from general to specific is known as deductive reasoning
Define climate community
is a measure of the variety of versions of the same genes mutualism and parasitism
How is it possible that an atom of carbon in your body could have been part of the dinosaurs?
- an atoms cannot be created not destroyed
- according to the principle of conservation of matter under ordinary circumstances, matter is neither created nor destroyed, but rather is recycled over and over again
- your body probably contains atoms that once made up the body of a dinosaur
Name two protanalist pressures?
- education, money, care, support
- Factors that increase people's desire to have children are called pronatalist pressures: source of support for elderly parents, source of curent income and help with household chores, replace members of society
The object of a species recovery plan is?
increase an endangered species population until it is no loger endagered
What would you like to do?
Home > Flashcards > Print Preview