<span>Carbon dioxide and the Krebs cycle which would be the answer D</span>
Lipids , proteins , nucleus acids, and carbohydrates
Answer: Micro villi
Explanation:
The cellular structures that increases the superficial surface area of the cell is known as micro villi. It is an extension of cell membrane.
This structure helps in the increasing the surface area for the maximizing the absorption of food materials.
It also helps in providing a large area in a very compacted space. It is found at many places in the human body such as in small intestine.
A sharp pyramid-shaped mountain peak, formed when several cirques surround a single high mountain, is called a pyramidal peak.
A pyramidal peak, (also called glacial horn) is a sharply, pointed, pyramid-shaped mountain peak which results from the cirque (bowl-shaped basins) erosion caused by many glaciers that are carved away from a central point. The pyramidal peak has a feature of a sharp-edged summit, and steep sloping sides. Examples of pyramidal peak include; Mount Aspiring in New Zealand, Pilot Peak in Wyoming, United States and Nevado Las Agujas in Los Ríos, Chile.
<span>What is the difference between a cell wall and a cell membrane
</span>
<span>D. The cell walls has a rigid structure. The cell membrane is flexible.
</span>