Answer:
The nucleus is an organelle found in most eukaryotic cells, the exception being red blood cells. ...
The primary functions of the nucleus are to store the cell's DNA, maintain its integrity, and facilitate its transcription and replication.
Letter A Animals are eukaryotes
Because Spain held such a dominant presence in the America's, Portugal focused on Africa. The correct option among all the options given in the question is option "A". The Spanish empire back then was one of the largest empire among all the empires. They were the masters of exploring the world via sea route and so they had created colonies far before the other. In America the Spanish were already present and expanding when Portugal decided to look elsewhere for creating colonies.
Scientists always look for patterns.
When analyzing data, this is essential to finding out important information.
"False" they have very strong immune systems.
"True" They are raised in an aseptic environment