When you add water to something hard as rock when that water freezes it will be hard enogh to break the clay or rock
The right answer is D.
The absorption of molecules at the level of the skin is carried out by passive diffusion for the molecules of low molecular weight (lower than 400 Da), the skin being covered with a lipoprotein film rich in water by its stratum corneum, rendering it little-permeable.
This absorption may be variable according to factors related to the skin such as stratum corneum's thickness, the state of hydration, the presence of cutaneous lesions or individual variations.
External factors may also modulate percutaneous absorption such as contact time, iontophoresis or the presence of specific adjuvants.
Chimpanzee for the first one
Answer:
The 2 carbon compound is called Acetyl CoA. Acetyl CoA now enters the citric acid cycle or the Krebs cycle.
Explanation: 2 molecules of pyruvic acid are the products of the enzymatic degradation of one molecule of glucose in a process known as glycolysis. Each molecule of Pyruvic acid (a 3 carbon molecule) is further degraded to a 2 carbon molecule called Acetyl CoA. Each molecule of Acetyl CoA then enters the citric acid cycle where it is used to produce 1 molecule of GTP, 3 molecules of NADH and 1 molecule of FADH2. NADH and FADH2 then enters the electron transport chain where they are used to generate ATP in a series of enzyme catalyzed reactions.