Answer:
D
Explanation:
Their bodies consist of mesoglea, a non-living jelly-like substance, sandwiched between two layers of epithelium that are mostly one cell thick
<span>This occurs when the cytoplasm is replaced by hard keratin over time as the skin changes, this is what results in the scale like patterns that are observed.</span>
Answer:
True
Explanation:
I will give an example. Two plants cross breeds. A pink flower and a red flower. The red flower has a gene for red color and the pink has a gene for pink color. Mix the two together and you have an offspring with two different genes, or alleles, that are either going to be mixed or the plant will be one or the other color.
The answer would be the second choice, "Central Nervous System"