One way to reduce bias in an experiment is to
a. ask only girls a question about a school topic
b. take numerical measurements of the results
c. use descriptive phrases as your data
d. make sure that the results come out the way you want them

answer: after carbon dioxide enters the leaf through stomata it moves into the mesophyll cells where photosynthesis occurs and glucose is constructed. respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy.

explanation:

condensation. good luck!

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which

what is a measurement of the earth’s history divided into time periods?

> fossil record <

sedimentary rock

> geologic time scale <

radioactive elements