Biology, 30.08.2021 18:20 larkinc2946
The fetus receives all its nutrients and oxygen through the placenta. Therefore, fetal lungs are non-functional, as far as pulmonary circulation is concerned. It only needs to receive enough blood to sustain growth. There are a couple of features in the fetal cardiovascular system to shunt the blood away from the lungs and only provide enough for sustenance and keep most blood in general circulation. Which two structures in fetal circulation aid in bypassing the pulmonary circulation
Answers: 1
Biology, 21.06.2019 23:30
Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.
Answers: 2
Biology, 22.06.2019 06:30
Mitosis creates two identical daughter cells from one parent cell creates four nonidentical daughter cells from one parent cell is the most common type of reproduction for bacteria is the process by which male and female reproductive cells are created
Answers: 1
Biology, 22.06.2019 10:40
Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above
Answers: 1
Biology, 22.06.2019 11:00
Examine the air pressure map. which type of line is shown on the map?
Answers: 1
The fetus receives all its nutrients and oxygen through the placenta. Therefore, fetal lungs are non...
History, 05.11.2020 01:00
Mathematics, 05.11.2020 01:00
Mathematics, 05.11.2020 01:00
Mathematics, 05.11.2020 01:00
Biology, 05.11.2020 01:00
History, 05.11.2020 01:00
Biology, 05.11.2020 01:00
Mathematics, 05.11.2020 01:00
Chemistry, 05.11.2020 01:00
Mathematics, 05.11.2020 01:00
Social Studies, 05.11.2020 01:00