The development of the zygote into a multicellular organism organism is the result of

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

The carbon cycle is best defined as a process in which a. carbon changes from inorganic forms to organic forms and back b. carbon is changed into other elements such as oxygen or nitrogen c. carbon is continually created from the sun’s energy by plants d. carbon is consumed and regenerated from other elements such as oxygen and nitrogen

Por qué crees que los huevos con cáscara se llaman amnióticos?