Southern sea otters are keystone species that are important to the ecosystems in which they live.

Hey me with this one❤☺❤ how do you say that a cell also has a life span and death like an organism? give one example.

The instructions for making proteins come originally from

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water