Selectively permeable <span>membranes can be found around a variety of cells and places. The most common </span>example is the phosphoric bi-layer cell membrane that surrounds every cell in our bodies. Another example<span> of a </span>selectively permeable membrane is the inner membranes of an egg.<span>Selectively permeable membranes can be found around a variety of cells and places. The most common example is the </span>phospholipid bilayer<span> cell membrane that surrounds every cell in our bodies. Another example of a selectively permeable membrane is the inner membranes of an egg.</span>
Animal cells do not have cell walls. So the answer is B.
<u>Answer</u>: Formation of a fossil.
<u>Explanation</u>:
- The fossils are formed when an organism dies and gets preserved due to some conditions.
- Since all living organisms contain a certain amount of carbon in their body when they die and, their fossil is formed the carbon present in the living organisms gets stored in the fossil as well.
- An example is the carbon film fossil which is formed due to the carbon residues left behind of soft-bodied organisms after they die.
Answer:
Sinoatrial Node?
Explanation:
Blood pressure drops whenever the vagus nerge is stimulated. In fact, babies have to constantly be monitored for position, becase cranial pressure can stimualte the vagus nerve and cut heart circulation by inhibitng the Sinoatrial node.
Temperature and pH levels are both correct