Biology, 11.02.2020 04:02 rfieldgrove8512
The morphology and natural history of a common and widely distributed butterfly was observed over a 25-year period in Costa Rica. Recent DNA barcoding (DNA sequence analysis) showed that what was once thought to be a single species is actually a complex of at least 10 species. Though caterpillars of these species eat different food plants and have somewhat different habitat preferences than their adult forms, their morphological differences are subtle. These butterflies would be considered species.
Answers: 3
Biology, 21.06.2019 18:30
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.
Answers: 2
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
The morphology and natural history of a common and widely distributed butterfly was observed over a...
Mathematics, 29.04.2021 22:40
History, 29.04.2021 22:40
Mathematics, 29.04.2021 22:40
English, 29.04.2021 22:40
Mathematics, 29.04.2021 22:40
English, 29.04.2021 22:40
Mathematics, 29.04.2021 22:40