Modifications that make up an organism better suited to its way of life are called __________. 

An acorn seeds becomes a seedling before it is an oak tree. This is an example of which characteristics of life?

A bird like an osprey can catch fish. The osprey has a massive fight muscle, a white breast and belly to camouflaged its presence and strong feet and claws to hold on to the slippery fish. This is an example of which characteristics of life?  

The ability of living things to reproduce offspring that resembles themselves is called ___________. 

When a sharp pin get stuck in your finger, your arm moves quickly away. This is an example of which characteristics of life?

Which shows sensitivity to stimulus?

The circulatory system is composed of the heart and the blood vessels, which in turn are compose of cells. This is an example of which characteristic of life?

The body temperature of human fluctuates only slightly during the day. This is an example of which characteristic of life?

Living things respond to external stimuli. Which of the following is not a response to a stimulus?

All chemical reactions that occur in a cell is called __________.