Which is the best explanation for why adenine matches with thymine, and guanine matches with cytosine? 1.)the bases only have a set number of available bonds 2.)there is a specific order that they go in 3.)they are antiparallel 4.)they have magnets in them

Which of the following is not a characteristic of natural selection? 100 points pls more offspring are born than will survive to reproduce. mutations appear randomly breeding pairs are chosen by humans organisms that are better adapted are more likely to survive

The following hormone had their receptors in the cell membrane except a-insulin b-tsh c-gh d- cortisol

The sketch shows a rynchosaur, an extinct animal that is known only from fossils. there has been much debate about the classification of these creatures. some scientists suggest that they belong with primitive amphibians, and some think they are related to snakes and lizards.the data equally support both cases. which statement best explains how to draw a cladogram that includes the rynchosaur? draw the cladogram for amphibians. draw the cladogram for reptiles. draw two cladograms, both showing the traits, and leave it as a hypothesis. draw two cladograms, both showing the traits, and have scientists vote