The most difficult part of an experiment is designing an experiment that tests only one factor.

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Agroup of students are walking in the park, and one of them takes a picture of a pollen grain that is being blown by the wind.what caption can the student use for this picture? fahrte "littl1111111nimmt-hhhfull film# # #gene mutation in actiongene flow at workgenetic drift as it happensnatural selection in progresshii

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry