Answer:
Eukaryotes are organisms whose cells have a nucleus enclosed within a nuclear envelope. Eukaryotes belong to the domain Eukaryota or Eukarya; their name comes from the Greek εὖ and κάρυον. The domain Eukaryota makes up one of the domains of life in the three-domain system; the two other domains are Bacteria and Archaea. Eukaryotes represent a tiny minority of the number of living organisms; however, due to their generally much larger size, their collective worldwide biomass is estimated to be about equal to that of prokaryotes. Eukaryotes evolved approximately 1.6–2.1 billion years ago, during the Proterozoic eon.
Explanation:
Answer;
-Noble gases or Group 18 elements
Explanation;
A full valence shell is the most stable electron configuration. Group 18 elements or noble gases such as helium, neon, and argon, have a full outer, or valence, shell. Elements in other groups have partially-filled valence shells and gain or lose electrons to achieve a stable electron configuration.
They are extremely unreactive and do not form bonds with themselves. Solid helium is the the ultimate fine powder being monotomic.
Answer:
(<u>Bone deposition</u>),
<u>(Bone resorption</u><u>)</u>,
<u>Remodeling</u>
<u>Periosteal</u><u> </u>,
<u>Nedosteal,</u>
<u>The compact bone, </u>
<u> Spongy bone.</u>
Explanation:
The constant, dynamic process of continual addition of new bone tissue (<u>bone deposition</u>) and removal of old bone tissue (<u>bone resorption</u>) is a process called bone <u>remodeling</u>. This ongoing process occurs at both the <u>periosteal</u> (outer) and<u> nedosteal </u>(inner) surfaces of a bone.
It is estimated that about <u>nedosteal</u> of the adult human skeleton is replaced yearly. This process does not occur at the same rate everywhere in the skeleton. For example,<u> the compact bone</u> in our skeleton is replaced at a slower rate than the <u>spongy bone.</u>
The answer is D. Hope this helps!
Secondary since plants/animals already lived there, but got killed/driven out of the area they lived/thrived in/on.
