Can a dichotomous key have the same question twice

Could the size of soil particles affect life of microorganisms living in the soil

In what type of climate do trees produce wider rings?

A close relationship between two organisms in which at least one of the organisms benefits.

What is the relationship between chromatin and chromosomes

What characteristics of life no longer exists when an organism die? how can one check this?

The carbon cycle is a cycle among the carbon reservoirs. What is a carbon reservoir and what are some examples?

If thermohaline circulation were blocked, perhaps by plate tectonics, what would happen? Nothing would change. Global climate would be significantly affected. Coastal areas would warm up. There would be an increase in precipitation.

What is happening when the cells start to swell up with water?

What phase of mitosis occurs when the doubled chromosomes are pulled apart by the centrioles? A. Anaphase B. Interphase C. Metaphase D. Telophase

What system did Carlos Linnaeus contribute to the science of taxonomy? A:hierarchical classifications B:binomial thought C:monarchism D:name justification subject: Life science