Structures in plant leaves that open and close to maintain homeostasis are called ?

Which of the following is not a health effect of alcohol abuse? a) increase in blood pressure b) loss of memory c) increased brain function d) increased breast cancer risk in women

The is a thin membrane that transmits sound waves into the middle ear.

Some plants have reproductive structures that them reproduce using natural forces or animals. how does the reproductive structure shown here ensure the reproductive success of plants?