Answer:
Option B, the graph with high levels of RNA-amino acid and a low amount of RNA-DNA.
Explanation:
RNA is understood to be the first genetic material in cells because:
RNA is capable of both storing genetic information and catalyzing chemical reactions.
Essential life processes like metabolism, translation, splicing, etc. evolved around RNA.
It has the tendency of self-replication.
Therefore, RNA-amino acid hydrogen bonds were more readily abundant than RNA-DNA bonds.
The right answer is a. Eras
A geological era corresponds to the second largest unit of time on the geological time scale behind the eon.
* The history of the Earth is divided into ten eras:
Eoarchéen: -4.0 to -3.6 billion years;
Paleoarchean: from -3.6 to -3.2 billion years;
Mesoarchean: from -3.2 to -2.8 billion years;
Neoarcheen: -2.8 to -2.5 billion years;
Paleoproterozoic: -2.5 to -1.6 billion years;
Mesoproterozoic: -1.6 to -1 billion years;
Neoproterozoic: from -1 to -0.541 billion years;
Paleozoic: from -541 to -252 million years ago;
Mesozoic: from -252 to -66 million years;
Cenozoic: from -66 million years to the present day.
To stay healthy, humans must maintain homeostasis at the molecular and cellular level as well as throughout the tissues, organs and systems of the body.
Answer:
The mitochondria
Explanation: Mitochondria (sing. Mitochondrion) are known as the powerhouse of the cell because they are responsible for the release of energy from food ,i.e, cellular respiration. This energy is released in the form of ATP (adenosine triphosphate), the energy currency of the cell.
Answer;
These are telltale signs that Valerie is suffering from Heat exhaustion.
Explanation;
Heat exhaustion is a part of heat related illnesses that begin with heat cramps, progresses to heat exhaustion, and finally to heat stroke.
The body cools itself by heavy sweating and allowing that sweat to evaporate.
Heat exhaustion symptoms include excessive thirst, headache, weakness, nausea, vomiting, dizziness, muscle cramps and a weak, rapid pulse.