Question

in studying biology, you will take a closer look at each of these characteristics. the understanding that we are made of one or more cells. cells are made of and contain certain chemical compounds. biochemistry (the chemistry of living things) is helpful to understand some basic concepts of chemical compounds. therefore, you will begin to study cells.

practice
identify which of the following characteristics are shared by all living organisms. write a y by the characteristics that are shared by all living or past, which are n by the characteristics that are not shared by all living organisms.

1. shares a universal genetic code
2. are able to make their own food
3. are made of one or more cells
4. are made of proteins
5. must use the energy from surrounding
6. are able to respond to changes in their environment
7. need to breathe in oxygen
8. maintain a fairly stable internal environment

Explanation:

To solve this, we analyze each characteristic against the list of properties of living things (from the boxed text) and identify which are shared by all living or by all living and non - living:

1. shares a universal genetic code

• All living things share a universal genetic code (from the list: "All living things share a universal genetic code"). Non - living things do not have a genetic code. So this is shared by all living things.

2. are able to make their own food

• Only autotrophic living things (like plants) can make their own food. Heterotrophic living things (like animals) and non - living things cannot. So this is not shared by all living or non - living.

3. are made of one or more cells

• All living things are made of one or more cells (from the list: "All living things are made of one or more cells"). Non - living things are not made of cells. So this is shared by all living things.

4. are made of proteins

• Both living and non - living things can be made of proteins. For example, living cells have protein components, and non - living things like hair (keratin, a protein) or some synthetic protein - based materials exist. So this is shared by all living or non - living.

5. must use the energy from surrounding cells

• Living things get energy through processes like photosynthesis or cellular respiration, not from "surrounding cells" in a general sense. Non - living things do not use energy in this way. So this is not a shared characteristic.

6. are able to respond to changes in their environment

• All living things are able to respond to changes in their environment (from the list: "All living things are able to respond to changes in their environment"). Non - living things do not respond to the environment in a biological sense. So this is shared by all living things.

7. need to breathe in oxygen

• Not all living things need to breathe in oxygen. For example, anaerobic bacteria can survive without oxygen. Non - living things do not breathe. So this is not a shared characteristic.

8. maintain a fairly stable internal environment

• All living things maintain a fairly stable internal environment (homeostasis, from the list: "All living things maintain a fairly stable internal environment"). Non - living things do not have homeostasis. So this is shared by all living things.

Answer:

s:

1. All living things
2. Not shared (only autotrophs among living, non - living don't)
3. All living things
4. All living or non - living
5. Not shared
6. All living things
7. Not shared (anaerobes exist)
8. All living things