Biology, 30.08.2019 15:00, LillianMRucker
Astudent is investigating the effect of plants on inbox air quality and states if plants are added to an indoor environment the air quality will improve this statement is an example of. a. a theory. b. a procedure. c. observations
d. a hypothesis
Answers: 2
Biology, 22.06.2019 00:30, KittyLitty
If bacteria are much too small to see, what is one reason why can we see colonies in the petri dishes that have plenty of food to eat after only a few days?
Answers: 1
Biology, 22.06.2019 08:40, Josephzaz
Asquirrel population lives in an area. over many years, a river in that area grows wider and stronger, eventually forming a canyon. the squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. this is an example of
Answers: 1
Biology, 22.06.2019 13:10, mroueh21
Once an egg cell is fertilized by sperm, the cell then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood. a. becomes a fetus immediately and exits the womb b. begins to divide and implants itself in the wall of the uterus c. remains in the uterus without dividing for several months d. travels back to the ovaries until the fetus is developed
Answers: 2
Astudent is investigating the effect of plants on inbox air quality and states if plants are added t...
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