B is your answer all of the above
Answer:
ecosistema terrestre es una comunidad de organismos y su ambiente que ocurre solo en masas de tierra, como continentes o islas. Ecosistemas terrestres. Tundra. Taiga. Bosque templado
On early earth, the one that was referred to as "Primordial Soup" is : B. The combination of organic compounds in warm salty water
Many speculated that these organic compounds mutated and evolved into a single cell organism, which became the origin of the organisms on earth
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The study of tree rings is called dendrochronology. Trees produce a single growth ring each year and by studying the size and composition of each ring scientists can get information about the age of the tree, available nutrients in the area, and general climatic conditions. A relatively small ring may indicate a year when there was very little rainfall and a larger ring indicates favourable conditions for plant growth.
Ice cores hold information on past global volcanic activity and past atmospheric conditions. Tiny bubbles in the ice cores give information on the concentration of gases in the atmosphere. Ice core data plays a key role in linking the increase in carbon dioxide concentrations to present day global warming.
Answer:
B
Explanation:
A proper balance between cell quiescence and mitosis ensures the right tissue homeostasis. Due to regular erosion of cells in the gut lining they have to be replaced frequently. In this case there are more cell in mitosis phase than quiescent phase. To replace the cells will exact copies, the DNA in the parent cells acts as a template for the duplication of copies for the daughter cells. During duplication in mitosis, there are checkpoints that ensure the process is proceeding with precision as required to produce exact copies. In case there are errors, they are repaired before one step is proceeded by the other. In the case of irreparable damage, these cells undergo induced apoptosis.
