Biology, 30.09.2019 07:30 justinjoyner12p5ox1r
Which of the following was probably the least important factor in bringing about the cambrian explosion?
a. the emergence of predator-prey relationships
b. an increase in the concentration of atmospheric oxygen
c. the movement of animals onto land
d. the origin of hox genes
Answers: 1
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What are some of the immune functions of the lymphatic system? a. cleaning red blood cells from the blood and creating lymph fluids b.transporting lymph to the tissues and creating lymph fluids c.removing infectious agents and making white blood cells d.making red blood cells and removing infectious agents
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Which chemical bond most likely stores the most energy? o a. double carbon-carbon bond o b. single carbon-carbon bond o c. hydrogen-oxygen bond o d. sodium-chlorine bond
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Which of the following was probably the least important factor in bringing about the cambrian explos...
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