Water
Where is most of Earth's Freshwater Located?
Ice (glaciers, polar ice caps, ice sheets)
How is geothermal energy classified?
as a renewable resource, because geothermal energy cannot be depleted
Which is most likely to prevent a viral epidemic from becoming a pandemic?
Vaccine use!
A mushroom is growing on a fallen log and sunlight is warming the forest floor. What factors are biotic and which are abiotic?
Mushroom: Biotic Sunlight: Abiotic Log: Biotic
Fossils of sea creatures are found on top of a mountain.
What does this evidence suggest about Earth’s history?
Was once under water
Scientists compare the bones of whales and land mammals and find similar structures.
What does this similarity suggest about the evolution of whales?
Common ancestor
A student combines hydrogen and oxygen in a sealed container to form water. After the reaction, the total mass remains the same.
Law of Conservation of Mass
High dissolved Oxygen, diverse bioindicators, and low temperatures indicate what kind of water quality?
Excellent
A community uses a hydroelectric dam to generate electricity. The dam’s reservoir also flows into a water treatment plant to make the water suitable for human consumption. Suppose a drought were to occur in this community. What benefit would there be in conserving the water people use in their homes?
Conserving water would increase the sustainability of the reservoir, increasing the amount of time the hydroelectric dam could be used as a source.
A person goes to the doctor with a sore throat. The strep test came back positive. What treatment would the doctor prescribe and what pathogen is it?
Bacteria and prescribe antibiotics
Tapeworms live inside a dog and absorb nutrients from the dog’s food. What relationship is this?
Parasitism
What are 4 criteria that make fossils INDEX fossils?
Abundant,
Global,
Short time (layer)
Easy to recognize
A population of moths becomes darker over several generations after living in a polluted forest.
Natural Selection
An element is a semi-conductor, brittle, and is shiny.
How would classify it?
Metalloid
How do plants contribute to the water cycle?
Transpiration-> add evaporated water back to atmosphere
A person has recently started riding a bike to work instead of driving a gasoline-powered car. How will this action affect the availability of fossil fuels?
The person is conserving a nonrenewable resource, which will decrease the rate at which this resource is depleted.
Disease 1: Causes facial swelling and nasal congestion. It is transmitted when an animal breathes in spores released from decaying organic matter in the environment. It is eukaryotic, multicellular, and can reproduce sexually or asexually. What is it?
Fungi
A pride of lions feeds upon a gazelle. What interaction is this?
Predation
Fossils of tropical plants are discovered in Antarctica. How do scientists explain this?
Earth was warmer and/or Antarctica was closer to the equator and drifted to the location it is now
A population of moths becomes darker over several generations after living in a polluted forest.
What process explains this change in the moth population?
Natural Selection
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + ATP (energy) is the question for cellular respiration. Which are the reactants?
Glucose and oxygen
What happens to water at the ocean’s surface as it moves from the equator toward the Arctic Ocean?
Two things!
Water cools, density increases
Suppose a large coal reserve is discovered on a mountaintop. The coal is extracted using a strip mine, where the topsoil is removed by large trucks and rocks are cleared by blasting with dynamite. A town exists at the foot of the mountain. How will this strip mine affect the environment?
Water that runs down the mountain will carry sediment and heavy metals from the strip mine, contaminating local freshwater supplies
Disease 2:
Causes itchy bumps on an animal's skin. It is transmitted to animals through physical contact. It is caused by a pathogen that needs a host cell to reproduce. What type of pathogen is it?
Virus
What is the nice of bacteria in an ecosystem?
Decomposers
Sequence the three major eras in order:
Precambrian: __________,_____________,____________
Paleozoic, Mesozoic, Cenozoic
Which information can best help scientists determine if two different organisms are members of the same species?
Anatomy (same body structures)
Julia mixes two clear solutions are mixed in a beaker. After a few seconds, a cloudy solid forms and settles to the bottom of the container. Would she classify this as a chemical or physical change and what is her evidence?
chemical, precipitate
How can people be good stewards of water resources?
Limit nonessential use of water
In general, what are advantages and disadvantages of renewable and nonrenewable energy?
Renewable: Never run out, better for planet. But can be costly to set up and not every locations is able to use them
Non: Cheaper for now but will run out. Many emit greenhouse gases, which is not good for our planet.
An infection causes serious illness in one of four people who contract it. Scientists do not recognize the pathogen and have no way to treat it. Smaller than a cell, the pathogen is spread through air. It forces a cell to create many copies of the original pathogen and destroys the cell in the process. What is the cause of this disease, and what could scientists do to protect public health?
The cause is a virus, and scientists could work on creating a vaccine to prevent the spread of the disease.
A lion transfers energy to a gazelle and a gazelle transfers energy to grass. T/F?
FALSE
A scientist discovers a large fossil mammal directly above a layer of shells and trilobites. What would the scientist infer?
An unconformity!
What types of evolution evidence are there?
Homologous,
DNA,
Embryos
Vestigial
Elements in the same column of the periodic table often behave similarly.
Why do elements in the same group have similar chemical properties?
Same number valence electrons