[1]
unlike asexual reproduction, sexual reproduction?
1.involves only one parent 2.increases variation in the hereditary information 3.occurs only in simple organisms 4.produces cells that are genetically identical to the parent cell
[2] in which substance are molecules rigidly arranged?
1. water in a freezer at -2degree C 2. water in cup at 22degree C 3. water in a pot at 100degree C 4.water in a steam engine at 110degree C