Biology, 08.07.2019 20:00 TheJanko4526
What is present in human blood that ensures blood ph is maintained at about 7.4?
Answers: 1
Biology, 22.06.2019 14:30, ItzMeEmilyyyy
Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully extended. scientists speculate that when dinosaurs became extinct, some of the birds that lived during that time became land dwellers since they were able to consume the food that the dinosaurs once ate. over time, these species grew larger and heavier. eventually, the ostrich species became too big to fly. the wings found on ostriches are known as a. analogous structures. b. homologous structures. c. vestigial structures. d. symmetrical structures.
Answers: 2
Biology, 22.06.2019 16:30, DnakMeme6e7272727272
Abiology teacher asks students to give examples of genetic variations that support the idea that changes in a population’s environment affect genetic variation. which is the least supportive example? a. changes in genetics in human populationsb. antibiotic resistance in bacteria populationsc. pesticide resistance in garden insectsd. changes in the color of the peppered moth population in england
Answers: 1
Biology, 22.06.2019 17:00, skylarrrrr7663
The us council on environmental quality, the world wildlife fund of the united states, the ecological society of america, the smithsonian institution, and the international union for the conservation of nature have proposed four principles of wildlife conservation. which of the following does not apply to wildlife conservation? a) continuous monitoring, analysis, and assessment b) ecosystem maintenance that includes wildlife c) a plan encompassing entire communities of organisms and all renewable resources d) a continued interest in harvesting populations for sport
Answers: 1
What is present in human blood that ensures blood ph is maintained at about 7.4?...
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