Water, Water Everywhere
True or False: Water is a polar molecule
True
The largest amount of biomass in terrestrial ecosystems is contained in which trophic level?
Bottom level
Producer level
Autotroph level
Plant level
Carbon in the atmosphere is converted to sugar by what living thing?
plants
autotrophs
producers
Name the molecule plants use to store sugar.
Starch
The type of relationship in which two species benefit from a close relationship with each other.
Mutualism
The bond that connects water molecules together is called a ___________ bond
Hydrogen
What percentage of energy is passed on from one trophic level to the next?
10%
The process in which energy is used to combine carbon dioxide and water to produce glucose and oxygen is __________.
Photosynthesis
Name the molecule that animals use to store sugar.
Glycogen
A student thinks that Drake's music during studying produces better test results than Kendrick's. He forms two groups of students and tests his hypothesis. He finds that the students who studied with Kendrick's music did better on tests. What is his independent variable?
Drake Vs. Kendrick
Cohesion is especially strong at the surface of liquid water, allowing some things to float. This is caused by ____________ ____________.
Surface Tension
In Nairobi National Park, zebra graze on grass. Lions eat the Zebras. Describe the direction in which the arrows should point if you were to draw this food chain.
Arrows should point to the thing doing the eating.
Arrows should point from the grass to the zebra to the lion.
If oxygen is present, the complete breakdown of glucose for energy will produce how many ATPs?
34-38
The building blocks of proteins are...
amino acids
What is the word used to describe when water vapor turns to liquid water (like what happens in clouds)?
Condensation
Why can't water dissolve fats?
Water is polar and fats are non polar.
Fats are hydrophobic.
In Takoma Park, plants are eaten by insects, which are eaten by garden snakes, which are eaten by owls. What level of consumer is the owl?
a tertiary consumer
The largest reservoir of carbon on earth can be found in:
the ocean
The macromolecule used for long-term energy storage is:
fats
A Volcano erupts and lava turns everything within a 20 mile radius to rock. The process by which the ecosystem will return to its climax ecosystem is called: __________ ___________
Primary Succession
Water evaporating from plants is called...
Transpiration
In the North Atlantic ecosystem, sea urchins eat kelp and otters eat sea urchins. When killer whales began to eat all the sea otters, the kelp forests began to disappear. Which of the species mentioned here is a keystone species? Why?
Sea otters, because they hold the ecosystem together.
Carbon is so important as a backbone for macromolecules because it can bond with up to _____ atoms.
4
monosaccharide
Plants need nitrogen to build protein. But they cannot directly use the nitrogen in the air. Instead, they have developed a symbiotic relationship with a species in their roots that helps them use the nitrogen. What is this species?
Bacteria.
Nitrogen-fixing bacteria.