Which should be used to collect fresh liquid blood evidence at a crime scene?

Which of the following are false concerning microbes? a. microbes generate oxygen through photosynthesis.b. the primary role of microbes on the planet involves causing disease in animals and humans.c. microbes produce vitamins in the intestines.d. microbes play a role in breaking down waste and decomposing dead organisms.

Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?