Biology, 16.10.2020 04:01 WintryTurtle
PLS HELP
1. Which of the following is a balanced equation?
A. 3Ca(s)+O2⇒CaO(s). B. Ca(s)+O2(g)⇒2Ca(s). C. 2Ca(s)+O2(g)⇒2CaO(s).
D. 6Ca(s)+O2(g)⇒2CaO(s)
Answers: 2
Biology, 21.06.2019 18:30
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.
Answers: 2
Biology, 22.06.2019 05:30
Can bacteria reproduce in a way such that when you start out with two bacteria, you get five bacteria? why or why not? * a. yes, because bacteria reproduce sexually, and can produce any number of offspring, just as humans do. b. no, because bacteria grow at an exponential rate. c. no, because when bacteria reproduce, they split into two parts, and two bacteria splitting would result in four bacteria.
Answers: 1
Biology, 22.06.2019 07:50
Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?
Answers: 1
PLS HELP
1. Which of the following is a balanced equation?
A. 3Ca(s)+O2⇒CaO(s). B. Ca(s)+O2(g...
A. 3Ca(s)+O2⇒CaO(s). B. Ca(s)+O2(g...
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