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Biology, 21.06.2019 14:00
According to the law of conservation of energy, energy can neither be created nor destroyed. if this is true, why is there less energy in the top of the energy pyramid than there is in the bottom of the energy pyramid?
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Biology, 22.06.2019 04:00
What sentence best supports the statement that hormones are involved in the regulation of homeostasis? a. the hormone erythropoeitin increases the production of red blood cells when oxygen levels are low. b. the hormone oxytocin promotes labor contractions of the uterus during childbirth. c. the hormone melatonin induces sleep and its production is slowed by exposure to light. d. the hormone cortisol suppresses the immune system and is produced when the body is under stress.
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Biology, 22.06.2019 17:40
Which is abiotic? a. tree sap b. insect c. sunlight d. wood table
Answers: 2
Aprokaryotic cell multiple choice has membrane-bounded organelles. has a nucleus. has a cell wall ma...
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