A saturated lipid is made up only of carbon atoms.
A saturated lipid contains the maximum number of hydrogen atoms.
A saturated lipid is covalently bonded to a protein molecule.
A saturated lipid is folded around and bonded to itself.
The number of available atoms in an organism.
The number of hydrogen atoms in fatty acids.
The ration of carbon, hydrogen, and oxygen atoms in carbohydrates.
The information stored and translated by nucleic acids.
Movement of glucose along a concentration gradient
The cell would swell because the water solution is hypotonic.
The cell would swell because the water solution is hypertonic.
The cell would shrivel because the water solution is hypotonic.
The cell would shrivel because the water solution is hypertonic.
They provide energy to the reactants.
They absorb energy from the products.
They lower the activation energy of the reaction.
They increase the number of available reactant particles.
Reactant atoms are destroyed and product atoms are formed.
Bonds of reactants are broken and atoms are rearranged into products.
Energy from the cell is converted into atoms of the products.
Atoms of the reactants are combined to form larger and more massive atoms of the products.
They repel each other without being changed.
They react but at a slower rate than particles with more energy.
They stick together until they absorb enough energy to react.
They exchange atoms so that they lower the required activation energy.
To produce oxygen.
To avoid the buildup of lactic acid.
To give up free phosphates for the recombination of ATP.
To continue the breakdown of sugars in the mitochondria.
A map of a gene.
A cell that is not yet specialized.
A small, circular piece of DNA.
An enzyme that can cut DNA into pieces.
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They released liquid water into the environment.
They removed the ozone layer from the atmosphere.
They forced light elements to rise to Earth's surface.
The population must be very small.
The environment must remain unchanged.
The organisms must be genetically identical.
Two conditions for each trait must be favored.
They push out pseudopods and then pull themselves towards them.
They roll from side to side and move their heads to turn.
They alternately contract muscles that run down and across their bodies.
The dig their tails into the soil and use them to propel their bodies forward.
Invertebrates have heads and tails.
Invertebrates do not have backbones.
Invertebrates do not have true hearts.
Invertebrates live in soil or sand.
Leeches are parasites.
Leeches have structures that look like paddles.
Leeches live in soil or sand.
Leeches excrete castings.
To carry sperm cells to egg cells.
To produce pollen.
To transport materials throughout the plant.
To protect seeds during dispersal.
Gymnosperms are male plants, and angiosperms are female plants.
Gymnosperms produce flowers, and angiosperms produce cones.
Gymnosperms have vascular tissue, whereas angiosperms do not.
Gymnosperms do not produce flowers and enclosed seeds.
They serve as reproductive structures.
They carry food to needle-like leaves.
They conduct photosynthesis.
They produce fruits to protect seeds.
They store egg cells until they are fertilized.
They provide sites on which pollen can land and stick.
They conserve water in the tissues of plants.
They attract animals that eat the fruits and release the seeds.