Vascular plants exhibit alternation of generation. what is alternation of generation?
a. the plant exhibits reduced sporophyte and dominant gametophyte alternately.
b. plant cells undergo mitosis and meiosis alternately.
c. the plant exists as a diploid organism, and at other times as a haploid.

Which statements describe resources? one of the factors people use when deciding where they will live is the availability of resources. renewable resources have little value for people. resources are unevenly distributed throughout the world. energy is the world resource which has the highest use. the use of nonrenewable resources has decreased in recent history. the use of resources is evenly distributed throughout the world. the world's oil supply will last for the next forty years if its use continues as expected.

Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. which punnett square represents the correct way to set up the cross rryy  ´  rryy? 

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?