HELP!!! Which option best describes genes?

1) small pieces of DNA that can join each other to form a chromosome
2) small pieces of DNA that split from chromosomes
3) sequences of DNA on chromosomes
4) a single large sequence that covers almost all of a chromosome

What effect does plate tectonics have an organic evolution

Si el equipo no fuera bueno no con el entrenador.

Research question: why are the carrots that grew on the left side of the garden larger than the carrots that grew on the right side of the garden? which hypothesis is based on this research question? a comparison of people with gardens to people without gardens will show who is likely to live longer. b. carrots are thought to be good for your eyesight and should be eaten regularly. c. carrots that are provided lots of sunlight grow to a larger size than carrots grown in the shade. d. eating fresh vegetables every day is a healthy thing to do.