Biology, 08.11.2019 00:31 RealGibbon857
Molecular oxygen (o2), which is required for the production of atp by mitochondria, must pass through at least three membranes to get to the enzymes where it is used. o2 is also produced in chloroplasts and must pass through at least four membranes to be released from the plant. how does o2 move across biological membranes? a. there are numerous protein transporters that allow o2 to travel across membranes. b. o2 is nonpolar, and very small, so it can diffuse across the membrane. c. o2 undergoes a chemical reaction that binds it to other substances that are transported across the membranes. d. o2 is hydrophilic and travels with water across the membranes.
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Biology, 21.06.2019 20:20
Turtle hatchling survivorship rate is low in many turtle species due to predation. amanda researched the predatory rate on a species of turtle eggs in the red river. the eggs were harvested from trapped turtles and the egg's cloaca film (reproductive discharge) was either washed off or left on once gathered. research suggests that predators use the female's cloaca scent to locate the eggs. the eggs were only handled when wearing gloves and then reburied along islands where the turtles were trapped. the nests were monitored by cameras and manually on foot and data on nest predation were recorded. a. based on the experimental design, what is the dependent variable? b. based on the experimental design, what is the independent variable? c. based on the experimental design, what is the control?
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Biology, 22.06.2019 04:30
Whats one way that rocks do not follow the typical rock cycle pathway?
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Biology, 22.06.2019 04:30
African penguins, which inhabit the coasts of southern africa, were classified as an endangered species in 2010. two significant threats to their survival are ecosystem damage from oil spills and overfishing by humans. overfishing depletes the food supply of african penguins. the best method to reduce the threat of overfishing would be to . the risk of oil spills could be reduced by increasing the use of , which should oil consumption. if an oil spill does occur, could be used to remove the oil so the ecosystem may more quickly recover.
Answers: 2
Biology, 22.06.2019 09:00
What happens when water’s salinity increases? mass decreases. freezing point decreases. buoyancy of objects decreases. the amount of dissolved minerals decreases.
Answers: 2
Molecular oxygen (o2), which is required for the production of atp by mitochondria, must pass throug...
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