Scientists studying the relationship between evolution and development have discovered a kind of gene called a Hox gene, which
tells a developing embryo where to build a particular structure, rather than
how to build that structure. How does the research into these Hox genes
support the principle of common descent even among widely different
groups, such as fruit flies and chickens?

Surrounded by microtubules, located near the nucleus. (don't try to google it) (give answer only if u know)

Which of the following matches the organisms described with the correct domain? a. bacteria--unicellular, eukaryotic organisms with cell walls that do not contain peptidoglycanb. archaea--multicellular, eukaryotic organisms that do not have cell wallsc. eukarya--single-celled and multicellular organisms, with a defined nucleus and a variety of nutritional sourcesd. bacteria--unicellular, eukaryotic organisms that always lack cell walls

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.