Common feature among class reptile, osteicthyes and aves is the possessing of? ps. i need the answer asap

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from

You want to cultivate some exotic plants at your farm. however, the climate is chillier than the temperature range favorable to the crop. which is the best method to use for the cultivation of this exotic crop? a. use a crop rotation method b. use a lot of fertilizer c. prepare the seed bed properly d. use a greenhouse e. use irrigation