So, from the name, we can say that carbon dioxide has two oxygen atoms. Alternatively, we can use the chemical formula of the molecule. Carbon dioxide has a chemical formula of CO2 .
Answer:
A. It Shows that organisms have changed over time.
Explanation:
An open fracture is most accurately defined as a fracture in which the overlying skin is no longer intact. A fracture is normally the break in the continuity of the bone. It is also called a compound fracture, in which the fracture is an open wound or break in the skin near the site of the broken bone. Immediate treatment for an open fracture focuses on preventing infection at the site of the injury.
Electron transport chain (ETC) refers to a series of complexes involved in the transfer of electrons from electron donors to electron acceptors through the reduction and oxidation reactions.
The similarities between the ETC in mitochondria and chloroplasts are as follows-
1. Both involve the electron transport chains on their inner membranes.
2. The energy produced pumps the protons against their concentration gradient across a membrane.
3. ATP synthase is used.
4. Two protons provide energy for the production of three molecules of ATP.
The differences between the ETC in mitochondria and chloroplasts are as follows-
Mitochondria- It uses the process of oxidative phosphorylation and chemical energy from the reduction-oxidation reactions. The electron transport chain occurs in the cristae. The coenzymes involved include the NAD and FAD. ATP synthase is located in the cristae. The protons are pumped out of the matrix. The final electron acceptor is the oxygen.
Chloroplast- It uses the process of photophosphorylation and the light energy. The electron transport chain occurs in the thylakoid membrane. The coenzyme involved is the NADP. ATP synthase is located in the thylakoid membrane. The protons are pumped into the thylakoids. The final electron acceptor is the chlorophyll in cyclic photophosphorylation and NADPH+ in the non-cyclic photophosphorylation.
The home tab is the button on the home page that returns us to the home. Commands to insert, delete and format cell width and height are present in the cell.
<h3>What are the features of the home tab?</h3>
The home tab has many functions and features and includes a cell that is the feature of the excel sheet that can add, delete, and format the cell sizes and height.
Other features like alignment, font size and style, numbering and editing are the tabs or buttons present in the home tab.
Therefore, option B. cells is the home tab button.
Learn more about cells and excel here:
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