Which characteristic of life is it when a fertilized egg changes over time to become a larger organism with many many cells?

My cowardly dog shivers when he hears thunder. A plant will slowly turn toward a window if there is light coming through it. You urinate when you feel pressure in your bladder. All of these are what characteristic of life?

What are the small, but very organized, parts that make up all living things?

All living things are able to make new organisms that are similar to themselves. What is the best word that describes this?

An organism's ability to keep its internal environment stable while the environment outside the organism changes is called . . .

Plants need sunlight and things from the atmosphere and soil. Animals need to eat plants or other animals. Which characteristic of life is this?

This characteristic of life is the one that you cannot do. Neither can the pine tree outside. However, both humans and pine trees do this over time. An individual cannot, but a species can.

A spider walks across your hand and you respond by pulling your hand away quickly. What is the spider?

The type of reproduction that requires two individuals. Each individual provides one cell. When those two cells join together, they form a single cell, called a zygote.

A series of chemical reactions that breaks down large substances into smaller pieces, or takes small pieces and puts them together to make larger substances. This happens when you digest food and use it to make muscles.