Scientists discovered a fossilized cockroach trapped in amber, which was supposed to be about 50 million years old. dna fingerprinting and comparison with today’s living cockroaches revealed that modern cockroaches have certain additional genes which allow them to survive in today’s colder climate. which of these could be the correct explanation for this discovery?

The phlogiston theory in the 17th century attempted to explain burning. the theory stated that combustable objects contained a material called phlogiston, a substance without mass, color, odor, etc. after objects burned, the objects were dephlogistonated and were then in their true form. the phlogiston theory was accepted until the 18th century, when lavoisier proved that combustion requires a gas that has mass. phlogiston is considered a) to be scientific knowledge b) not to be scientific knowledge c) to be proven by scientific method d) to be accepted in the modern scientific community

What is the difference between bacterial infections and viral infections?

Match with o for organic and i for inorganic for each compound