As early vertebrates transitioned from an aquatic lifestyle to terrestrial habits, major changes in structural and physiological characteristics facilitated their survival and expansion. It is likely that some of these traits are a result of: a) changes in developmentally important genes, as in evo-devo the ability of some cells to incorporate environmental DNA, or eDNA, into its genome b) new Hox genes that reverse some steps in development c) transcription factors that originate outside of the developing embryo d) new interactions between cytoplasmic determinants and the nucleus
Answers: 3
Biology, 21.06.2019 23:00
Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.
Answers: 1
Biology, 22.06.2019 01:50
It is believed that europa, one of jupiter’s moons has an ocean beneath its surface. based on how earth’s oceans and atmosphere are believed to have formed, what can be said about europa’s supposed ocean? the arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced , similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s .
Answers: 1
Biology, 22.06.2019 14:30
Which statement is not an accurate description of meiosis? a) meiosis produces offspring that are genetically diverse. b) meiosis produces offspring that are identical to the parent. c) in sexual reproduction half of the genetic material comes from the father (sperm) and half of the genetic material comes from the mother (egg). d) meiosis decreases the number of chromosomes by half so that when a sperm fertilizes an egg, the resulting zygote has the correct number of chromosomes.
Answers: 1
As early vertebrates transitioned from an aquatic lifestyle to terrestrial habits, major changes in...
Mathematics, 25.11.2020 22:10
Mathematics, 25.11.2020 22:10
Social Studies, 25.11.2020 22:10
Computers and Technology, 25.11.2020 22:10
Physics, 25.11.2020 22:10
Social Studies, 25.11.2020 22:10
Mathematics, 25.11.2020 22:10
Biology, 25.11.2020 22:10
Computers and Technology, 25.11.2020 22:20
English, 25.11.2020 22:20