Biology, 30.07.2019 01:00 mariahcrook7
What do saliva, tears, and nasal mucus have in common? a .all can be classified as biological barriers. b .all contain langerhans cells. c .all can destroy bacterial cell walls. d. all are part of the complement system.
Answers: 2
Biology, 22.06.2019 13:50
2points what do bacteria have in common with the cells of other living organisms?
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Biology, 22.06.2019 15:10
Asap many people try to eliminate fat from their diets which is one reason it is necessary for humans to eat fat a) fat is the only way to get energy b) every cell in the body must contain fat c)fat stores less energy than polysaccharides d) saturated fats make blood vessels healthier
Answers: 1
Biology, 22.06.2019 18:10
Which chemical reaction shows photosynthesis? a. water + carbon dioxide + sunlight → oxygen + glucose b. carbon + oxygen → carbon dioxide c. hydrogen + oxygen → water d. nitrogen + hydrogen → ammonia
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Biology, 22.06.2019 20:00
Which of the following statements best distinguishes a hypothesis from a theory? a. theories are hypotheses that have been proved. b.hypotheses are guesses; theories are correct answers c. hypotheses usually are relatively narrow in scope; theories have broad explanatory power. d. theories are proved to be true; hypotheses are often contradicted by experimental results.
Answers: 1
What do saliva, tears, and nasal mucus have in common? a .all can be classified as biological barri...
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