Answer:
moss hornworts seed plants
Explanation: there plants that could be in the water.
Stable elements are those which have atleast one isotope with no tendency to "decay", i.e., change into anotherelement.
Answer: sp+ zn+/ sp+ zn+ ; sp+ zn+/ sp zn; sp zn / sp zn
Explanation: f a double heterozygote is testcrossed and gametes are produced in a ratio of 1:1:1:1, this can be interpreted as unlinked genes or as genes that are 50 map units apart. Because gametes this far apart cannot be distinguished from gametes that are unlinked, it's not possible to get a ratio of gametes that indicates a distance of greater than 50 map units.
A man and a woman are trying to have children but are unsuccessful. As part of a series of tests, the man is karyotyped. His autosomes appear normal, but his sex chromosomes, shown in the following diagram, are not. The diagram also shows a normal male's sex chromosomes for reference.