The water would freeze across the surface of the lake, blocking the dissolving of oxygen and nutrients. <span>Water is actually less dense when frozen, which is why ice cubes and ice bergs all float. This is also why you can ice skate on a lake if the ice gets thick enough on the surface. Many organisms that live in freezing lakes have special adaptations which help them survive.</span>
1. is the sun
2. is is waters the plants and help things grow
Answer:
The rate of activity of an enzyme might change as pH changes
Explanation:
Enzymes are organic catalysts that controls the rate of a specific chemical reaction.
These materials combines substrates in order to lower the activation energy which might serves as a barrier to chemical action.
- Enzymes have specific reactions which they control.
- Temperature and PH conditions control the rate at which enzymes work.
- They are not all produced from the building block of carbohydrates.
C) moving materials in and waste products out
Answer: Some of the intestinal symptoms elicited by pathogens such as salmonella, shigella, and Escherichia are due to the presence of lipopolysaccharides.
Pathogen associated molecular patterns binds to toll like receptors to elicit a response include lipopolysaccharide or LPS. The bacterial component interaction with the host involves LPS and other components of cell wall causing a septic shock. The triggering of any event of septic shock is directly related to the release of LPS or other bacterial toxins into circulation. Pathogen associated molecular patterns are the molecules which are made by the pathogen and needed for their survival or pathogenic character includes LPS.