In the 1800s the most widely favored explanation of genetics was "blending." explain the concept of blending, and then describe how mendel’s "particulate" (gene) hypothesis was different.

When the intestine becomes infected with the food borne illness bacteria e. coli, the bacteria releases a enterotoxin that causes excessive loss of water and electrolytes in the intestines. necessary to return the osmolality of the intestines to normal?

Imagine you are introducing the lac operan and the trp operon to students who have never learned about it before. complete the table to compare the similarities and differences between the two operons

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.