Answer:
1. Another word for chemical weathering is b. disintegration
Chemical weathering is a process by which the rocks are broken down into parts and sediments by the action of a chemical agent such as alkali or acid. The disintegration can be a natural process by which a solid body is broken down into parts or subparts.
2. d. moving water is not an agent of chemical weathering agent.
The chemical weathering can be caused by the agents like lichens which secretes acid on the rock surface and causes it's disintegration, acid rain and salt water are chemical agents that can cause the disintegration of the rock but moving water will have little influence on the hard rock surface.
3. c. chemical weathering is a process which turns rocks and minerals into new substances. The chemical weathering process brings change in the chemical composition of the rocks due to the action of the weathering agents hence, on disintegration of rocks new substances are formed.
Flagella and cilia are both used for movement
Answer:
H. pylori uses the enzyme urease to breakdown urea into ammonia (NH3) & carbon dioxide (CO2), where NH3 can act as a buffer to the acidic solution in the stomach.
Explanation:
<em>H. pylori</em> is a bacteria that has the enzyme urease to breakdown urea into ammonia (NH3) & carbon dioxide (CO2). The compound of interest here would be ammonia, or NH3. NH3 is a base, although relatively weak to other stronger bases, which means it has a pH above 7. In the stomach, the pH is acidic, or below 7. By synthesizing ammonia, <em>H. pylori </em>is able to buffer the stomach solution in a manner so that it isn't entirely acidic, but more toward the basic side, thereby allowing for its survival.
C. exocytosis
just think "exo" sounds like "exit". diffusion is mostly gases, endocytosis is coming in, and osmosis is water
Answer: C) The cell can produce energy for cellular functions.
Explanation: A cell is the functional unit of all living things. Cells are made up different parts with specialized functions. Cells take in nutrients from food and convert them to energy which is needed for other cellular functions. The specialized functions of the different parts of a cell can only be carried out if sufficient energy is provided by the cell. The functions of different parts of a cell include reproduction, absorption of nutrients and removal of substances from the cell, protein synthesis but none of these functions will be carried out if energy is not supplied.
