Answer:
Evolution by natural selection.
Explanation:
According to Charles Darwin's theory of evolution by natural selection, some organisms possesses heritable traits that enable them to adapt to their environment compared with other members of their species. This will be more likely to survive, reproduce, and pass more of their genes on to the next generation.
Answer:
B) Over time, much of their nucleic acid has migrated to the host cell nucleus
Explanation:
The origin of chloroplasts and mitochondria is explained via endosymbiosis theory: they originated as prokarytoic symbionts. The host cell acquired genetic information from them and “took it up” by lateral gene transfer. Those genes (now located in the eukaryotic cell nucleus-nuclear genome) encode the great majority of chloroplast and mitochondrial proteins, as well as many proteins of the nucleus and cytosol.
Yet ,chloroplasts and mitochondria retained some of the genes in their genomes.
The answer to the question is B - The lungs exhale carbon dioxide, which is a waste gas and needs to be removed from the body.
Answer:
Weather
Explanation:
Weather is the the state of the atmosphere at a particular place and time as regards heat, cloudiness, dryness, sunshine, wind, rain, etc.
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