What led to oxygen becoming a major part of earth's atmosphere

How long would it take to travel to the moon by rocket?

What does fertilization mean

During heatstroke, the body can't dispose of excess heat. As a result, the homeostatic balance is disturbed, and internal body temperatures can reach as much as 110°. Heatstroke is dangerous to people primarily because A. it causes pneumonia. B.

A client has a burn on the leg related to an engine fire. when the burn area was assessed, it was determined that the client felt no pain in the area and that it appeared charred. what depth of burn injury does the client have

16. Which part of a mushroom can you see above the ground? A. Hyphae Mat B. Feeding Network C. Mycelium D. Reproductive Structure

Whats a hitchhiking arachnid?

What would mostly likely happen to a unicellular organism if it was exposed to a hypotonic solution for an extended period of time

Scientists use a standardized taxonomic system to separate organisms into hierarchical groups based on similarities and differences in their structural and genetic characteristics Which of the following best explains why a standardized

What happens to atoms after an animal has died?

If an organism has high biological fitness in one environment, does that mean it would also have high biological fitness in another environment? Why or why not