Answer:
Functions of epithelial cells include secretion, selective absorption, protection, transcellular transport, and sensing.
Explanation:
Epithelial layers contain no blood vessels, so they must receive nourishment via diffusion of substances from the underlying connective tissue, through the basement membrane.
Answer:
Proteins
Explanation:
Since proteins were made up of 20 different types of amino acids and DNA was only four A,G,C and T many scientists thought that these were most likely to be carrying information. In addition to amino acids being in so many varieties they were also of different charges and shapes as well. It was believed that the amount of information that can be held in these 20 amino acids are much greater than that that can be held in just four bases.
<span>The answer would be possess genes that are more similar to those of multicellular animals than bacteria.
</span>Archaea or <span>Archaebacteria </span>is a prokaryote that composed of single-celled organism that doesn't have a nucleus. Archaea have a single circular chromosome. Their genetic material is similar to the multicellular animal.
Answer: 1. 1. More mutations. 2. According to Charles Darwin's theory of evolution by natural selection, organisms that possess heritable traits that enable them to better adapt to their environment compared with other members of their species will be more likely to survive, reproduce, and pass more of their genes on to the next generation.
Explanation: