Which microscope did robert hooke use to study tree bark

Is the following sentence true or false? during meiosis, the two alleles for each gene stay together.

When is it appropriate to use an absolute reference

Why is it uncommon for users to perform searches directly in database tables? a.)users are discouraged from interacting directly with tables because they might confuse tables with spreadsheets. b.) users are discouraged from interacting directly with tables because this may result in unintended changes to source data. c.)users do not have the technical skills required to perform searches directly in database tables. d.)users do not have the permissions required to perform searches directly in database tables.