Choose the word that best completes each sentence. Bacteria cells have a rigid cell
that gives the bacteria its shape.

The outermost structure of the bacteria cell is the
, which comes in contact with the environment.

Some bacteria have
, or whiplike tails that spin to propel them forward.

Hurry where is the majority of earth's water found? o glaciers o oceans ground o rivers and lakes

The negative impacts of nonnative species generally outweigh the positive impacts

Which part of the neuron below is indicated by the arrow, and what is its function? hormones send chemical signals throughout the body to regulate other body processes. hormones are chemical signals that are sent throughout the body to regulate other body processes. hormones send electrical signals throughout the body to regulate other body processes. hormones are electrical signals that are sent throughout the body to regulate other body processes.