Biology, 11.07.2019 19:30 joejoefofana
Which type of epithelium is present where easy exchange of materials out of the blood is most important, such as that in the lining of the heart and all blood vessels?
Answers: 2
Biology, 21.06.2019 18:00
Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence
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Biology, 22.06.2019 03:50
What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere,b)the emergence of the eukarya , c)muti cella’s eukaryotic organisms began to diversify,d)anaerobic bacteria kept thriving with more oxygen
Answers: 1
Biology, 22.06.2019 07:30
Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables
Answers: 3
Which type of epithelium is present where easy exchange of materials out of the blood is most import...
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