Amy gets up from this her seat on a train to move closer to the front just as she begins to walk forward the train stops at a station what is the best explanation of what happened to Amy

The United States won the space race because they sent the first person to the moon won the space race because it launched the first man-made object into space lost the space race because the first person sent into space was a Russian cosmonaut lost

How do cells communicate in the body

What does it mean when a biologist uses the term crossing-over? why is crossing over a good thing?

The pH scale measures whether solutions are acidic, basic, or neutral. The pH needed by living cells is very specific, and can vary only slightly. because all living things are made up of cells that are mostly water, the pH of cells is close to A) 7.

Which of the following best represents a simple food chain? A. Producer - secondary consumer primary consumer B. Primary consumer - secondary consumer → producer C. Secondary consumer → primary consumer → producer D.

If evolution does not occur, what happens to the frequency of genes in the gene pool?

Why doesn't the recessive gene disappear from the population?

What pigment is present in the tyladoid of the chloroplast?

Under normal circumstances, what method does not lead to water intake? under normal circumstances, what method does not lead to water intake? osmosis food beverages metabolism

When a cat drop from a trees to the grounds the conversation of what