1. what allows things to enter and leave a cell and is the gate keeper?

Nitrofurantoin used during the fifth week of pregnancy places the neonate at risk for which condition?

The mammal pictured below is a silvery mole rat. which statement is an inference based on the picture? the animal is ugly. the animal has hairless feet with sharp claws. the animal has prominent upper and lower incisor teeth. the animal likely has poor vision since its eyes are so small.

What is usually (but not always) related to the metabolic processes of living organisms in its organic form?