Food chains represent the movement of energy through the environment
the movement of energy from a consumer to producer
the loss of energy in the ecosystem
the importance of DNA

Mendel made crosses between pure-breeding y’all pea plants with purple flowers and pure-breeding short pea plants with white flowers. the alleles for a y’all height and purple flowers were dominant. this cross is written a. ttpp x ttpp b. ttpp x ttpp c. ttpp x ttpp d. ttpp x ttpp