What 2 things are needed for organisms to complete cellular respiration?
oxygen and glucose
Which pathogen is nonliving?
Virus
Which symbiotic relationship is it when ALL organisms benefit from the relationship?
Mutualism
The food chain shows how snakes participate in this ecosystem. plants → beetle → snake → hawk How would eliminating snakes affect this ecosystem?
The beetle and hawk populations would increase
Beetle popul would increase, hawk population would decrease
Beetle popul would increase, hawk population would decrease
The beetle and hawk populations would decrease
Which type of water (warm or cold) holds more dissolved oxygen?
cold water
Which information can best help scientists determine if two different organisms are members of the same species?
the physical structures of the organisms
the diets of the organisms
the behaviors of the organisms
the habitats of the organisms
Butterflies and Birds both have wings but they are made of different materials, what is this an example of?
Analogous Structures
Which symbiotic relationship is caused when one organism benefits by harming the other?
Parasitism
Olivia finds two dinosaur fossils in a museum: Apatosaurus fossil: 150 million years old Diplodocus fossil: 154 million years old What evidence would show these organisms share a common ancestor?
a 140-million-year-old Diplodocus fossil
140-myo fossil with anatomical features of both
a 160-million-year-old Diplodocus fossil
160-myo fossil with anatomical features of both
Methane is a pure substance and exists as a gas at room temperature. Each methane molecule is made up of one carbon atom chemically bonded to four hydrogen atoms. How is methane classified?
a homogeneous mixture
a compoud
an element
a heterogenous mixture
Is Baking Soda (NaHCO3) an example of an element, compound, or mixture?
Compound
What do we call the evidence that refers to organisms having a similar bone structure?
Homologous Structures
How do plants contribute to the carbon cycle?
They absorb carbon dioxide from the atmosphere for photosynthesis
How are viruses similar to parasites?
They both need a host
Looking at a periodic table, how do you know that elements have similar properites?
They will be in the same group.
Which symbiotic relationship results from one organism benefiting without helping or harming an organism?
Commensalism
What does this represent?
Mixture
What contains 2 or more substances chemically combined?
Compound
What is the difference between a Pandemic and an Epidemic?
Pandemics cover world wide; Epidemics are smaller localized areas.
What is used to treat a bacterial infection?
Antibiotics
What does this represent?
Element
What do we call a structure that an organism has left over from evolution, but the part serves no purpose anymore?
Vestigual Structures
What is a pure substance that can't be broken down any farther?
Element or compound
What pathogen spread by Mosquitoes causes Malaria?
Parasite
What contains 2 or more substances physically combined?
Mixture
Is Gold an example of an element, compound, or mixture?
Element
How do viruses reproduce?
They copy themselves in a host cell.
An unidentified pure solid is composed of an element. The substance is metallic and reacts vigorously when placed in water. Where is this element most likely found on the periodic table?
at the bottom of the periodic table
at the top of the periodic table
on the right side of the periodic table
on the left side of the periodic table
Does this pictures satisfy the law of conservation of mass? Why?
Yes, both sides have the same things on it.
Why is most freshwater unavailable at any given time?
It is frozen.
The diagram represents a region’s food chain. plants → squirrel → coyote Which change would increase the amount of carbon available to coyotes?
an increase in the squirrel population
introducing a species that competes with coyotes
an increase in the coyote population
introducing a species that competes with squirrels
What does this represent?
Compound
What can be used to prevent viral infections?
Vaccines