The amount of land taken up by cities

The estimate of land and water required to sustain one person

The amount of money required to support a human population

The ecological damage caused by humans

Seeds allow plants to produce needles.

Seeds allow plants to alternate generations.

Seeds allow plants to grow tall.

Seeds allow plants to be independent of water for reproduction.

always taking a very long time to occur

change in the gene pool of a population

the production of new species

change in the composition of populations

The brown bear

The polar bear

The Asiatic black bear

The sun bear

DNA, a plasma membrane and a plasmid.

Nucleic acid (either DNA or RNA) and a plasma membrane

Nucleic acid (either DNA or RNA) and a capsid

RNA and a plasmid

in the roots

in the flowers

plants cannot store starches and sugars.

in the leaves