Which are characteristics of a prokaryotic cell? Select three options,
contains DNA
lack...
Biology, 05.05.2020 04:15 jonathan3191
Which are characteristics of a prokaryotic cell? Select three options,
contains DNA
lacks DNA
contains ribosomes
lacks ribosomes
contains a nucleus
lacks a nucleus
Answers: 1
Biology, 22.06.2019 02:30
Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a.earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c.earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.
Answers: 1
Biology, 22.06.2019 19:30
On a backpacking trip, kenny hikes all day at a steady pace, covering 30 kilometers and burning 4000 calories. at the school track, janelle runs the 100-meter sprint in 13.5 seconds, burning 10 calories. afterward, janelle’s leg muscles are aching and she is breathing hard, while kenny maintains normal breathing all day, even though he burns 400 times more calories than janelle. which two statements offer the best explanation for this phenomenon? a. if the aerobic pathway—cellular respiration—cannot meet the energy demand, then the anaerobic pathway—lactic acid fermentation—starts up, resulting in lactic acid buildup and "oxygen debt." b. aerobic cellular respiration produces more energy, but its use is limited because of lactic acid buildup in the muscles and the resulting "oxygen debt." c. after about 90 seconds of intense exercise, the muscles become depleted of oxygen, and anaerobic respiration can no longer function to produce atp, resulting in "oxygen debt." d. the rate of energy demand determines how the muscles will obtain energy, either from cellular respiration or from lactic acid fermentation if not enough oxygen is present.
Answers: 3
Mathematics, 14.12.2019 11:31
Mathematics, 14.12.2019 11:31
Mathematics, 14.12.2019 11:31
Mathematics, 14.12.2019 11:31
Biology, 14.12.2019 11:31
Mathematics, 14.12.2019 11:31
Mathematics, 14.12.2019 11:31
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Social Studies, 14.12.2019 11:31
Social Studies, 14.12.2019 11:31