Biology, 20.01.2020 18:31 michellemonchez103
Suppose a segment of mitochondrial dna (mtdna) is compared between two similar modern-day species. it is known that this segment of mtdna changes at a steady rate of one base pair every 4 million years. compare the sequences of the two mtdna segments given below. species a: gcactaagcatcgattt species b: gcaccaggcactggttc use the basic principle of molecular clocks to calculate how long ago the two species diverged from a common ancestor.
Answers: 1
Biology, 21.06.2019 21:00
In natural selection, what is actually “selected? ” a) alleles are directly selected b) genotypes are directly selected c) phenotypes are directly selected d) entire populations are directly selected
Answers: 2
Biology, 22.06.2019 07:30
The ancestors of plants that lived in water had plenty of water for the young. angiosperms are a group of land plants that evolved a reproductive trait for living on land. this trait protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right. what trait most likely young angiosperms in this way?
Answers: 1
Biology, 22.06.2019 08:00
Immature bone cells, or osteoblasts, manufacture a protein called osteoid as well as several hormones. because of this, we would expect osteoblasts to contain numerous a) nuclei. b) ribosomes. c) lysosomes. d) golgi bodies.
Answers: 1
Biology, 22.06.2019 08:50
Iwill make you brainliest pleeze answer this fast i have to turn it in really soon brainliest promise easy question 6th grade ! a weather map shows a high pressure system with circles around it. what does this mean? a) an occluded front b) areas of equal altitude c) areas of equal pressure d) a stationary front
Answers: 2
Suppose a segment of mitochondrial dna (mtdna) is compared between two similar modern-day species. i...
Mathematics, 19.05.2020 22:58
English, 19.05.2020 22:58
Mathematics, 19.05.2020 22:58
Mathematics, 19.05.2020 22:58
Mathematics, 19.05.2020 22:58
Mathematics, 19.05.2020 22:58
Mathematics, 19.05.2020 22:58
Mathematics, 19.05.2020 22:58
Social Studies, 19.05.2020 22:58
Mathematics, 19.05.2020 22:58