Biology, 11.07.2019 02:30, urgurlkitty
What are the effect of first-hand and second-hand tobacco smoke on the human respiratory system? what are the effects of second-hand smoking on children and the unborn?
Answers: 1
Biology, 22.06.2019 00:30, savannnab1890
According to the cladogram, which organisms have roundworms as a common ancestor?
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Biology, 22.06.2019 02:20, JAYDENJONES0111
What is the function of the somatic nervous system? connects the brain and the spinal cord to the rest of the body carry signals to the muscles and glands includes all nerves controlling the muscular system and external sensory receptors controls internal organs like the heart and bladder
Answers: 2
Biology, 22.06.2019 04:30, weeblordd
Rachel ate a piece of fruit and happened to drop the seeds in her backyard. after a few weeks, she saw a small plant with flowers growing in the backyard. which group does this plant belong to? a. angiosperms b. gymnosperms c. pteridophytes d. bryophytes e. chytrids
Answers: 1
What are the effect of first-hand and second-hand tobacco smoke on the human respiratory system? wh...
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