What is made up from crystalline solid that conduct a current only under certain circumstances

How do humans continue to maintain stable internal environment if billions of cells die within their bodies each day

What effect does stretching muscle have on contraction strength?

Which of these levels of biological organization contains the other three A) Cell B) Organ C) Body System D) Tissue

Which of the following kinds of questions cannot be answered within the limits of science?

A species of seaweed and coral in competition for sunlight and space. how would you discribes this relationship?

Bradley decided to put a glass of water into the freezer, as he thought it would cool the water more quickly than the refrigerator. Bradley began to watch TV and forgot about the water for many hours.

Oak trees can grow to be tall. What kind of plants have the ability to grow large and tall and also lose their leaves in the fall? A) woody, evergreen B) woody, deciduous C) mossy plants in damp places D) plants with flowers and green stems

Name two wave interactions that can occur when a wave encounters a barriers.

What is the difference between oviparity and viviparity

A particular (blank) is the source of penicillin